Software:Open-source video game

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Short description: Video game whose source code is open-source software
FlightGear flight simulator

An open-source video game, or simply an open-source game, is a video game whose source code is open-source. They are often freely distributable and sometimes cross-platform compatible.

Definition and differentiation

Game manager Lutris showing a selection of open-source video games

Not all open-source games are free software; some open-source games contain proprietary non-free content. Open-source games that are free software and contain exclusively free content conform to DFSG, free culture, and open content and are sometimes called free games. Many Linux distributions require for inclusion that the game content is freely redistributable, freeware or commercial restriction clauses are prohibited.[1]

Background

Participants in the Free Knowledge Game Jam 2015, an open source and open data oriented game jam

In general, open-source games are developed by relatively small groups of people in their free time, with profit not being the main focus. Many open-source games are volunteer-run projects, and as such, developers of free games are often hobbyists and enthusiasts. The consequence of this is that open-source games often take longer to mature, are less common[2] and often lack the production value of commercial titles.[3] In the 1990s a challenge to build high-quality content for games was the missing availability or the excessive price for tools like 3D modeller or toolsets for level design.[4]

In recent years, this changed and availability of open-source tools like Blender, game engines and libraries drove open source and independent video gaming.[5] FLOSS game engines, like the Godot game engine, as well as libraries, like SDL, are increasingly common in game development, even proprietary ones.[6] Given that game art is not considered software, there is debate about the philosophical or ethical obstacles in selling a game where its art is proprietary but the entire source code is free software.[7][8][9]

Godot engine editor

Some of the open-source game projects are based on formerly proprietary games, whose source code was released as open-source software, while the game content (such as graphics, audio and levels) may or may not be under a free license.[10] Examples include Warzone 2100 (a real-time strategy game)[11] and Micropolis (a city-building simulator based on the SimCity source code). Advantage of such continuation projects is that these games are already "complete" as graphic and audio content is available, and therefore the open-source authors can focus on porting, fixing bugs or modding the games.

Warzone 2100

In a 2004 article, Adam Geitgey questioned the compatibility of the open-source culture with respect to the game development process. He suggested that perceived open-source development advantages do not work for games because users move on to new games relatively quickly and so do not give back to the project. Geitgey further noted that music and art development is not built up from the work of others in the same way that coding would be. He argued that high quality art content is required, which is typically produced commercially by paid artists. While Linux operates on the open-source philosophy, this may not benefit game development.[12]

As of September 2015, the Steam gaming service has 1,500 games available on Linux, compared to 2,323 games for Mac and 6,500 Windows games.[13][14][15]

History

Beginnings and early games

Angband


With the rise of proprietary software in the mid to late 1980s, games became more and more proprietary. However, this also led to the first deliberately free games such as GNU Backgammon, GNU Chess, GNU Go, and GNU Shogi of the GNU Project established in 1983, part of whose goal is to create a complete free software system, games included.[16] More advanced free gaming projects emerged, such as Moria and its descendant Angband, Hack and its derivatives NetHack and Slash'EM, in addition to Xtrek successor Netrek, variants of robots, and adventure game Dunnet, which has been included with GNU Emacs since 1994 among others.[17][18] Still developed and played today, front-ends for frameworks such as X11, SDL, GTK and Qt, plus fuller featured variants such as Iso-Angband, glHack and Vulture's Eye have kept the games accessible.[19][20] Roguelikes have continued to be produced, including Cataclysm, Tales of Maj'Eyal, HyperRogue, DRL, Isleward,[21] Egoboo, S.C.O.U.R.G.E.,[22] Shattered Pixel Dungeon,[23] as well as Linley's Dungeon Crawl and its offspring Dungeon Crawl Stone Soup. The source code to the original Rogue was released under the BSD license in 1986.

XEvil

As PC gaming began to emerge in the late 1980s, free gaming also advanced. More complicated games utilizing the X Window System for graphics started to appear, most beginning with the signature letter X.[24] These included XAsteroids, XBattle, XBoing, X-Bomber, XConq, XDigger, XEmeraldia, XGalaga, XGammon, XLander, XLife, XMahjong, XMine, XSoldier, XPilot, XRobots, XRubiks, XShogi, XScavenger, XTris, XTron, and XTic.[25] XBill is notable as one of the earliest free gaming titles to feature an activist theme of halting proprietary software adoption, later echoed in titles such as Virus Killer, Defendguin and FreedroidRPG.[26] XEvil followed the development cycle of many early pieces of free software, having originally been developed as a university project on the Project Athena network, although it was freeware for a while.[27] The game was also one of the first free titles to feature controversial subject matter such as graphic violence and drug use.[28] XTux was also an early deathmatch game for Linux, featuring various free software mascots, a theme that would continue to be revisited.[29] Rocks'n'Diamonds is another earlier free software game, and one of the first for Linux.[30] Other games targeted or also supported the SVGAlib library allowing them to run without a windowing system,[31] such as LinCity, Maelstorm, and SABRE.[32] The General Graphics Interface was also utilized,[33] with games like Heroes,[34] Thrust,[35] U.R.B.A.N The Cyborg Project[36] and Dave Gnukem.[37]

FreeCiv

The Freeciv project was started in 1995 and gave rise to another new style of free game development. Similar to the cooperative nature of the Linux kernel development, Freeciv was extended by many volunteers, rather than only one or two authors.[38] It had started out as a small university student project but then branched out into its current form and is still being developed today. Freeciv also proved to be one of the earliest very popular free software games, and was among the first to be included with Linux distributions, a system commonly known now as a source of peer review or selection of quality for free gaming projects. Magazines, news sources and websites have also started noting free games, often in listings.[39][40][41][42] Freeciv and other archetypes have led to the development of many other clones of popular proprietary games.[43][44] Lincity was also started in 1995, despite there having been a Unix version of its namesake officially released by DUX Software in 1990.[45]

Beyond directly tying to the operating system, various free game development frameworks emerged starting with Allegro in 1990, SDL in 1998, ClanLib in 1999, OpenAL in 2000, SFML in 2007, as well as SDL 2 and Raylib in 2013. The GNU Image Manipulation Program, MyPaint, Kirta, Inkscape, Synfig, Pencil2D, Audacity, Rosegarden, MidiEditor,[46] OpenShot, Kdenlive, Pitivi, Blender, MakeHuman, MM3D,[47][48] and other applications have provided an entire open source toolchain for creative projects. Various free software emulators and compatibility layers have also been produced, such as MAME and MESS, Mednafen, higan, Executor, Darling, lxrun, Cygwin, Dosbox, ScummVM, Anbox, Wine and Proton, allowing games to run in new environments (broadly targeted by the RetroArch front-end).

3D games and source releases

Tux Racer

Proprietary games such as Doom and Descent brought in the age of three-dimensional games in the early to mid 1990s, and free games started to make the switch themselves. Tuxedo T. Penguin: A Quest for Herring by Steve Baker, a game featuring the Linux mascot Tux and introducing the PLIB library, was an early example of a three-dimensional free software game.[49] He and his son Oliver would later create other popular 3D free games and clones such as TuxKart and contribute to those by other developers such as Tux Racer. BZFlag pre-dates all of these, inspired by Battlezone and started in 1992 and released in 1993. FlightGear, YSFlight, ACM,[50] and GL-117[51] are also good examples of original 3D games, first started in 1997, 1999 and 2003 respectively (and the latter eventually forked as Linux Air Combat[52]), especially noting that they are not first-person shooters but flight simulators; Danger from the Deep meanwhile simulates submarines.[53]

The OpenGL specification provided a foundation for hardware acceleration since 1992, primarily through the free Mesa implementation since 1995, and later complimented by Vulkan since 2016.[54] The Direct3D API has also been made available on free operating systems via compatibility layers such as WineD3D and DXKV. The Glide API was also made open source following the dissolution of 3dfx in 2002.

The Genesis3D engine project, Crystal Space and Cube also spawned other 3D free software engines and games, later joined by the likes of Retribution,[55] Delta3D, Dim3, Neutron,[56][57] Lescegra,[58] Raydium,[59] Drome Engine,[60] Vanda,[61] Linderdaum,[62] Lumix,[63] Toy,[64] ezEngine,[65] WickedEngine,[66] Limon,[67] Banshee,[68] Esenthel,[69] Flax,[70] and the G3D Innovation Engine.[71] Engines even exist for high-level programming languages such as Python[72] (Pyglet, PyOpenGL,[73] Spineless,[74] Soya3D, PyUnity,[75] PyZOE[76]), Pascal (GLScene, Castle,[77] nxPascal,[78] ZenGL[79]), Lua (LÖVR,[80] LÖVE3D[81]), Rust (Amethyst,[82] Bevy,[83] Fyrox,[84] Piston[85]), Java[86] (libGDX, Jake2, jMonkeyEngine,[87] Env3D[88]), Kotlin (KorGE,[89] MiniGDX[90]), Go[91] (Azul3D,[92] G3N[93]), Ruby (Candy Gear[94]), Gambas (PS Tech[95]) FreeBASIC (OpenB3D[96]) in addition to ActionScript (Away3D), Haxe (Heaps.io,[97] Kha[98]) and JavaScript (Babylon.js, Three.js) using WebGL.[99][100][101] Several engines exist with rendering in low-level C or C++ with higher level scripting, such as Panda3D and Ursina[102] for Python, Basic4GL, and Maratis,[103] Polycode,[104] and Cafu for Lua, or offering a variety of language binding options such as Cocos3D,[105] Horde3D, Delta Engine,[106] HARFANG3D,[107] OGRE and the Irrlicht Engine. The games Yo Frankie! and Sintel The Game were developed by the Blender Foundation to showcase the abilities of the Blender modelling tool and the erstwhile Blender Game Engine, which has since been forked as UPBGE.[108] Blender is also utilized by Urho3D/U3D[109][110] and Armory.[111] Since May 2023, the GDevelop tool allows low to no code 3D game creation.[112]

GL-117

id Software, an early entrant into commercial Linux gaming, would also prove to be an early supporter of free gaming when John Carmack released the source code for Wolfenstein 3D in 1995 and Doom in 1997, first under a custom license and then later the GNU General Public License (GPL) in 1999 (later termed id Tech 1). This was followed by the release of Quake engine in 1999, the Quake II engine in 2001 (both known as id Tech 2), id Tech 3 in 2004 and most recently id Tech 4 in 2011 (including the updated version from the Doom 3 in 2012) before Carmack left id in 2013.[67]

id Tech 4 was released as free software, even amongst patent concerns from Creative Labs over Carmack's reverse,[113] while the original Doom source release shipped without music due to complications with the Cygnus Studios developed DMX library (which lead to the Linux version being selected for release).[114] Carmack has continued to advise developers to be careful when depending on middleware, noting how it can limit the possibilities of later releasing source code.[115] Tim Sweeney has implied this issue has hindered potential releases of older Unreal Engine source code.[116] The Godot, Nebula Device, Plasma, Torque,[117] Bork3D, Stride, PlayCanvas, Dagor Engine,[118][119] and Defold[120] engines were also initially commercial and proprietary, while the Open 3D Engine is derived from released code from Amazon Lumberyard originally based on CryEngine.[121]

Tremulous

This led not only to source ports that allowed the playing of the non-free games based on these engines[122] (plus fan added enhancements)[123] on free engines and systems, but has also to the production of standalone free games.[124] These include Freedoom, Blasphemer, Open Quartz, LibreQuake, Nexuiz/Xonotic, Tremulous/Unvanquished, Quetoo,[125] and OpenArena on id Tech, plus Terminal Overload[126] and Uebergame[127] on Torque. Freeware games, such as Harmony,[128] The Adventures of Square,[129] The Hunted Chronicle 2,[130] Force: Leashed,[131] Retro Blazer,[132] Alien Arena, World of Padman, and Urban Terror,[133] have also taken advantage of these free engines and sometimes have given code back to the community. Development and editing tools are also commonly released freely, such as GtkRadiant,[134] Qoole, Doom Builder, LibreSprite,[135] Ogmo,[136] LDtk,[137] LevelEditor,[138] Tile Studio, and Tiled.[139][140] Released engines have also been used for fangames such as Sonic Robo Blast 2,[141] Wolfenstein: Blade of Agony,[142] ZBlood/Transfusion,[143] SUPERQOT,[144] and Slayer's Testament,[145] and even commercial games such as Wrath, Steel Storm, and DOOMBRINGER,[146] on the DarkPlaces engine, as well as Hedon,[147] Selaco,[148] Vomitoreum,[149] and Supplice[150] on the GZDoom engine and also titles by Blendo Games on the id Tech 2 and id Tech 4 engines. The games Ion Fury and A.W.O.L are built on the source available Build engine,[151] and Excalibur on Aleph One. Liblast is an open source multiplayer first-person shooter built using the Godot game engine.[152]

Blades of Exile


Some games are mostly free software but contain proprietary content such as the Cube sequel, Sauerbraten (and later forks, but not Red Eclipse), Warsow / Warfork, or the former id Tech mods The Dark Mod and Smokin' Guns, but some developers desire and/or work on replacing these with free content.[153][154] Mods for originally proprietary games have gone standalone following the source code being released for their parent game, such as Nexuiz for Quake, CodeRED: Alien Arena for Quake II, and Urban Terror for Quake III, as well as Penumbra for Amnesia. Derivatives of released code or recreations have even been used for commercial re-releases of vintage games such as Wolfenstein 3D Classic for iOS,[155] Abuse Classic for iPhone, Duke Nukem 3D: Megaton Edition,[156] Shadow Warrior Classic Redux,[157] Duke Nukem and Duke Nukem II for the Evercade,[158] and The Original Strife: Veteran Edition.[159] Source code releases were used however for unauthorized versions of Lugaru and Abuse that were allowed onto the App Store prior to takedown claims by the original developers.[160][161]

Primarily proprietary developers have also helped free gaming by creating free libraries. Loki Software helped create and maintain the Simple DirectMedia Layer and OpenAL libraries and Linux Game Publishing created and maintained the free network layer Grapple. LGP also avoided publishing games similar to popular free titles.[162] Many libraries/infrastructures have been created without corporate assistance however, such as the online game system GGZ Gaming Zone,[163][164] Gamerzilla achievement integration,[165] GamingAnywhere cloud streaming,[166] Mumble voice over IP,[167] OBS Studio for screencasting,[168] and the Lutris game manager.[169] Physics engines such as Box2D, Bullet, Chipmunk, OPAL, Open Dynamics Engine, Tokamak and Newton Game Dynamics have been made available as open source. In addition, various game creation systems are free software[170] such as the ZZT remake MegaZeux,[171] ZGameEditor,[172] Novashell,[173] SLUDGE,[174] the JavaScript based Ct.js[175] and Pixelbox.js,[176] versions of Game Editor, Adventure Game Studio, OHRRPGCE, Game-Maker, the engine behind Stencyl, the original Construct, GDevelop and Godot.

Rise in popularity and diversity

SuperTux

Individuals and teams have continued creating many popular free software games, starting really in the late 1990s to the present day. Many of these are clones[177] such as Pingus, Lix,[178] and Rabbit Escape[179] (Lemmings), BomberClone (Atomic Bomberman),[180] Enigma (Oxyd), Beats of Rage (Streets of Rage), TetriNET (Tetris), GAV,[181] Blobby Volley, and SlimeVolley[182] (Arcade Volleyball), Ace of Penguins (Microsoft Solitaire),[183] Crack Attack (Tetris Attack),[184] Pang Zero[185] and PiX Pang[186] (Super Pang), System Syzygy (Systems' Twilight),[187] Troll Bridge, Fanwor: The Legend of Gemda[188] and ZQuest Classic[189] (The Legend of Zelda), Rocks'n'Diamonds and Epiphany[190] (Boulder Dash), Numpty Physics (Crayon Physics),[191] Pathological (Logical),[192] PainTown (MUGEN),[193] FloboPoyo,[194] GTK Puyo Puyo[195] (Puyo Puyo), Paranoid,[196] LBreakOut 2,[197] and Briquolo[198] (Breakout), BurgerSpace (BurgerTime),[199] Einstein Puzzle (Sherlock),[200] UltraStar (SingStar), OpenClonk (Clonk), FreeGish (Gish),[201] Hexoshi (Super Metroid),[202] I Have No Tomatoes[203] and Bombic[204] (Dynablaster), Scorched 3D and XScorch[205] (Scorched Earth), FreeVikings (The Lost Vikings),[206] Savage Wheels (Destruction Derby),[207] Penguin Command (Missile Command),[208] Sable (Space Harrier),[209] Circus Linux! (Circus Atari),[210] Falling Time (Fall Down),[211] Toppler (Tower Toppler),[212][213] Gem Drop X (Gem Drop),[214] Fish Supper[215] and Froggix[216] (Frogger), OpenMortal (Mortal Kombat),[217][218] Triplane Turmoil and SDL Sopwth[219] (Sopwith), Taisei Project (Touhou Project),[220] Crown and Cutlass (Sid Meier's Pirates!),[221] IceBreaker (JezzBall),[222] Monsterz (Bejeweled),[223] Tux Football[224] and YSoccer[225] (Sensible Soccer), iMaze (MIDI Maze),[226] PixBros (Bubble Bobble),[227] Surge the Rabbit (Sonic the Hedgehog),[228] Dave Gnukem (Duke Nukem),[229] Formido[230] (Phobia), Violetland[231] and Grimsonland[232] (Crimsonland), Minetest (Minecraft),[233] SolarWolf (Solar Fox),[234] Freedroid[235] and Nighthawk[236] (Paradroid), Tile World and Escape[237] (Chip's Challenge),[238] FreeOrion (Master of Orion),[239] Tuxánci (Bulánci), Super Tux Party (Mario Party),[240] Neverball (Super Monkey Ball),[241] Kraptor/RafKill (Raptor), Trackballs (Marble Madness),[242] Hurrican (Turrican),[243] OpenTyrian (Tyrian),[244] HexGL (Wipeout),[245] Zaz (Zuma), Ostrich Riders (Joust),[246] Endless Sky[247] and Naev[248] (Escape Velocity), Pioneer and Oolite (Elite), SuperTux, Secret Maryo Chronicles and Mari0 (Super Mario Bros.),[249] SuperTux 3D[250] (Super Mario 64), WarMUX[251] and Hedgewars[252] (Worms), OpenLieroX, NiL,[253] LieroLibre (Liero) as well as Frets on Fire (Guitar Hero), and StepMania (Dance Dance Revolution).

kiki the nanobot

Frozen Bubble, originally a clone of Puzzle Bobble, has become a classic known for its addictive gameplay and winner of many Linux Journal Reader's Choice Awards.[254] These games and others have also helped expand the prevalent Tux genre which started with titles and like A Quest for Herring and are related to the activist content of games like XBill. As well as ground up clones,[255] open source re-implementations of various proprietary games have become increasingly common, which utilize the original game data.[256]

More original games such as the platformers 0verkill,[257] Abe's Amazing Adventure,[258] Adventures on Planet Zephulor,[259] Alex the Allegator 4,[260] Amphetamine,[261] B.A.L.L.Z.,[262] Cow's Revenge,[263] Gilbert and the doors,[264] Go Ollie!,[265] GunFu Deadlands,[266] JVGS,[267] Me and My Shadow,[268] Mr. Rescue,[269] Nikwi,[270] Plee the Bear,[271] Super Bombinhas,[272] Stringrolled,[273] Teeworlds, Which Way Is Up,[274] and Worminator 3,[275] puzzle games such as Anagramarama,[276] Angry, Drunken, Dwarves,[277] Balls Blocks and Mazes,[278] Battery,[279] Brikx,[280] Chroma,[281] Dynamite,[282] Hex-a-Hop,[283] irrlamb,[284] kiki the nano bot, Krystal Drop,[285] Marble Muncher,[286] Memonix,[287] Minilens,[288] Raincat,[289] Tetzle,[290] The Powder Toy, Wizznic!,[291] and Xye,[292] arcade games such as Apricots,[293] Airstrike,[294] Avoision,[295] Battle Tanks,[296] Barrage,[297] C-Dogs, Chromium B.S.U., Emilia Pinball,[298] the Enemy Lines series,[299][300] FLAW,[301] Free Tennis,[302] the Geki series,[303] Hase,[304] Help Hannah's Horse,[305] Heroes,[306] Jammer the Gardener,[307] KETM,[308] Kuklomenos,[309] Librerama,[310] Luola,[311] M.A.R.S.,[312] Meat Fighter - The Weiner Warrior,[212] Hikou no mizu,[313] Moag,[314] OilWar,[315] osu!, Osgg,[316] Orbital Eunuchs Sniper,[317] Overgod,[318] Powermanga,[319][320] Ri-li,[321] Super Transball 2,[322] Technoball Z,[323] The Sheep Killer,[324] Variations on Rockdodger,[325] Warlock's Gauntlet,[326] and Zorn,[327] have been able to carve out their own niches.

A number of these games and those mentioned earlier and later in this section have even received mainstream press coverage[328] and commercial compilations,[329] and have helped to establish free gaming as a moderately popular pastime. Most prominently among Linux[330] users and other free Unix-like systems such as BSD,[331] Solaris,[332] Darwin,[333] ToaruOS,[334] Xv6,[335] Fiwix,[336] Redox,[337] OpenHarmony,[338] and SerenityOS,[339] but also some Macintosh[340] players and even a few Microsoft Windows gamers.[341] As well, open source games have been made available for Palm OS,[342] Android,[343] and iOS[344] mobile devices. Additionally, these games provide options for a variety of alternative and hobbyist systems,[345] including CP/M,[346] OS/2,[347][348] BeOS,[349][350] RISC OS,[351][352][353] QNX,[354] IRIX,[355][356] MenuetOS,[357] Phantom OS,[358] Genode,[359] HelenOS,[360] SkyOS,[361] TempleOS,[362] SymbOS,[363][364] FreeRTOS,[365] AmigaOS[366][367] (plus WarpOS[368]), and MorphOS,[369] as well as later implementations such as FreeDOS,[370] ArcaOS,[371] ReactOS,[372] Haiku,[373][374] ZETA,[375] KolibriOS,[376] Syllable Desktop,[377] AmigaOS 4,[378] and AROS.[379][380] Particularly prolific is New Breed Software, which offers games for all or most of those systems,[381] as well as for vintage computers such as the Atari 8-bit, Atari ST, and Amiga, homebrew for several game consoles such as the Sega Dreamcast, Sony PlayStation 2 and Nintendo Wii, handhelds such as the Sony PSP, Nintendo DS and GP2X, as well as mobile platforms such as the Agenda VR3, OpenZaurus, Maemo, and SymbianOS.[382]

Bos Wars

Strategy and simulation games have been a prevalent force in free software gaming,[383] partly due to the lack of proprietary options for free software operating systems as compared to other genres like first-person shooters and role-playing games.[43][384] Xconq and XBattle, and later Freeciv and Lincity, began the trend, and were followed by other clone titles like FreeCol, UnCiv,[385] Crimson Fields,[386] C-evo, LordsAWar!, Freelords, Civil,[387] LGeneral,[388] Open General,[389] OpenPanzer,[390] OpenCity, OpenRTS,[391] TripleA,[392] Mars, Land of No Mercy,[393] Ophiuchus,[394] Mindustry,[395] Tanks of Freedom,[396] OpenRA, OpenRCT2, OpenTTD, Simutrans, StormWar,[397] Advanced Strategic Command,[398] Tenes Empanadas Graciela, Endgame, Thousand Parsec, Unknown Horizons and Widelands.

The Stratagus project began as an attempt to recreate the proprietary Warcraft II engine, under the name FreeCraft. Blizzard Entertainment sent a cease and desist letter in 2003 over the use of the name "craft" in comparison to Warcraft and StarCraft.[399] Though the earlier free software strategy game CRAFT: The Vicious Vikings shared the name "craft" without controversy.[400] With the new, legally inoffensive name Stratagus and the old FreeCraft assets renamed Aleona's Tales, the team began work on a new strategy game called Bos Wars.

Speed Dreams

Development on this game still continues, as well as the modern Warcraft II port Wargus. Other games branched out of the engine project as well such as the Battle for Mandicor and Astroseries projects, the StarCraft port attempt Stargus, and most recently Wyrmsun.[401] After the Stratagus example, other real-time strategy games were developed, such as Globulation 2, which experiments with game management mechanics, the similarly experimental Liquid War, mutliplayer military game TUD,[402] the claymation based Dark Oberon,[403] and the 3D projects 0 A.D. (a former freeware project), Boson,[404] Battles of Antargis,[405] Spring and Glest.[330]

Racing games, another uncommon Linux commercial genre, have also seen development.[406] One of the earliest was RARS, which evolved following the principle of forking into TORCS and then Speed Dreams. MicroRacers[407] and Toy Cars[408] are inspired by Micro Machines, while Ultimate Stunts[409] and Stunt Rally,[410] are rooted in Stunts. Other racing games include versions of Racer, VDrift, Rigs of Rods, Slune,[411] GLtron and Armagetron Advanced, YORG,[412] the Mario Kart–inspired SuperTuxKart, Elasto Mania clone X-Moto, SkyRoads imitator Orbit-Hopper,[413] sledding game Extreme Tux Racer, the text based ZRacer,[414] and the top-down Trophy,[415] Dust Racing 2D and Pixel Wheels.[416]

One Hour One Life

WorldForge, Ryzom, Crossfire, Solipsis, Illarion,[417] and The Mana World[418][419] are further examples of increasing diversification, offering free massively multiplayer online role-playing game worlds. Single-player role-playing games are also available, such as A Dark Room, Heroes of Allacrost,[420] Valyria Tear,[421] Empty Clip,[422] Summoning Wars,[423] GNU FreeDink,[424] FLARE,[425] Heroine Dusk,[426] FreedroidRPG,[427] the Cube World inspired Veloren,[428] and the Pokémon derived Tuxemon,[429] OPMon,[430] and Pigeon Ascent.[431]

The rise of the independent game development in the 2000s and 2010s was partly driven by the growing ecosystem of open-source libraries and engines; indie developers utilized the open-source ecosystem due to good cross-platform capabilities and availability for limited financial burden.[5] Game jams such as Ludum Dare and Game Off are often run on open source principles, frequently using free frameworks such as pygame, Arcade,[432] Wasabi2D,[433] and Ren'Py for Python, Ruby2D[434] and Gosu[435] for Ruby, GGEZ[436] for Rust, LibGDX for Java, MiniGDX[437] for Kotlin, LÖVE and Solar2D for Lua, Ebitengine[438] for Go, Phaser, Panda,[439] and SuperPower for HTML5,[440] as well as nCine,[441] Solarus,[442] Starling, MonoGame, Twine, and Cocos2d.[443][444] Educational languages such as Snap! and Scratch are also free software,[445][446] as is The Wick Editor animation and game creation tool.[447] Individual developers such as Jason Rohrer, creator of Passage and One Hour One Life, and Kenta Cho have embraced open source.[448]

Greater organization

SuperTuxKart

Despite its initial roots as individual projects, the free software gaming scene has been becoming progressively more organized. The roots of this even go back as far as the games created for the GNU Project and to the original larger-scale free software projects like Freeciv. Still, for the most part free game development had very little organization throughout its history.[449] Popular games were generally separate efforts, except for instances of people working on them known for other projects such as Ingo Ruhnke (Pingus), Bill Kendrick (SuperTux) and Steve Baker (TuxKart).[450] Games were commonly found in directories such as The Linux Game Tome[451] and Freshmeat[452] and hosted on sites like SourceForge[453][454] and GNU Savannah, but they were largely only ever brought together in the form of disorganized lists.[455][456][457][458] Other projects and games existed purely on isolated personal or project websites, often unknown and ignored.[459]

GNOME Mines

The launch of the GNOME and KDE desktop projects in the late 1990s organized application and, to a certain extent, game development. Both attempts to create a more usable Linux desktop attracted volunteers to make utilities to that end. These programs included games, mostly recreations of small games like Minesweeper or Solitaire that come with Microsoft Windows, arcade classics and the like, games from combined sets such as Microsoft Entertainment Pack, and occasionally original ideas.[460]

The variety and amount of these games, and other free games easily found in software repositories, have had GNOME or KDE-enabled Linux called a better option for out of the box casual gaming than Microsoft Windows.[461] They also provide games for other Unix-like operating systems, such as BSD and Solaris.[462][463] Many such games are packaged into kdegames and the erstwhile GNOME Games package. Examples include GNOME Aisleriot, GNOME Quadrapassel, GNOME Tetravex, GNOME Mines, GNOME Robots, GNOME Nibbles, and KTuberling,[464] KMahjongg, KGoldrunner, KBreakout, KsirK, plus the original game Konquest.[465] Although designed primarily for application development, the underlying GTK[466] and Qt[467][468] toolkits have also been used broadly for game development, as have wxWidgets,[469] Tk,[470] and FLTK.[471] The availability of free game engines, such as Stratagus, Pygame,[472] LÖVE,[473] and ioquake3[474] have also helped unify free software development by making the engine projects themselves hubs of activity for games that make use of them.

The Battle for Wesnoth

The Battle for Wesnoth project was started in 2003 and quickly became popular to both players and editors. It also showcased some new ideas when it came to free game development.[475] Like Freeciv before it, it utilized the efforts of the gaming and free software community and their code, levels and artwork contributions but it also accepted storyline contributions and ideas for the game's entire fictional universe. The game's canon is maintained through review and discussion over which submitted campaigns become official, thus setting up a model for community input and organized results.[476] This helped the game grow in scale and popularity to the point of being almost saga-like in scope. In addition, the project is worked on by many well-known free programmers, artists, designers and musicians such as the co-founder of the Open Source Initiative Eric S. Raymond,[477] and Linux kernel hacker Rusty Russell.[478][479] Vega Strike has similarly allowed its community to expand the game and the surrounding lore while maintaining canon consistency.[480] The Wesnoth developers also worked on Frogatto & Friends, which features a free engine but mostly proprietary game data.

Hubs and development teams

Lincity-NG

The general lack of unity and organization has created and continues to generate some controversy among the free software community, with problems of "reinventing the wheel" by making similar clones, games and multimedia resources being cited as a notable problem to free game development.[481] This is especially taking up more notice as other problems are corrected, such as a lack of tools, libraries, artists and coders. A more central knowledge bank, texture library, and discussion area had been lacking.[482]

Traditionally free software video games were developed as individual projects, some small scale and others larger scale.[202] Programmers and other developers did often work on other projects, but the whole system was very unlinked.[483] More recently free software development teams have started appearing, groups that function like software companies and create multiple pieces of work. Examples include the developer Parallel Realities, which have released the games Project: Starfighter, The Legend of Edgar, Blob Wars: Metal Blob Solid, as well as its sequel, Blob Wars: Blob and Conquer.[484]

Tux Typing

The Linux Game Tome "Game of the Month" team was an open group of game developers that revamp old free software games. Some examples include the transformation of TuxKart into the more modern SuperTuxKart, work on Pingus and SuperTux, and Lincity-NG, an updated version of Lincity with superior graphics.[485] A more recent project with similar goals exists called LibreGames, which has worked on Jump 'n Bump, OpenAlchemist and FreeTumble and JAG.[486] Identical Software has also worked to modernize various libre games, including Ostrich Riders, Shippy 1984, OpenAlchemist, Mojotron, Seahorse Adventures, Thrust, and Mari0.[487][488]

OpenHV combines the CC licensed Hard Vacuum assets with the OpenRA engine.[489]

PlayPower is a non-profit organization founded in 2008 designed to create free educational computer software for low income families in India and other developing countries. The Tux4Kids initiative also maintains various educational games featuring the child-friendly Tux character such as Tux Paint, Tux, of Math Command, Tux Typing and related efforts.[490] The GCompris suite is also available from KDE,[491] and the activity centre Childsplay is also available.[492]

In recent years, content repositories such as OpenGameArt.org, Wikimedia Commons, Openclipart, and The Freesound Project have enabled developers to easily find appropriately-licensed content rather than relying on programmer art.[493][494] Such content is often under Creative Commons licenses or those in the GNU GPL family,[495] easily facilitating use by most free software projects.[496][497] OpenGameArt.org is also affiliated with related websites such as Libregamewiki,[256] a database of purely libre games, the Free Gamer blog[498] and the FreeGameDev forums.[499][500][501]

GitHub, GitLab and Gitea now hosts a significant amount of free and open-source games.[502][503][504] The itch.io service is also a host for many open source games, and also features an open source client.[505] The same is true for competitor Game Jolt,[506] and was also the case for former distributor Desura.[507] A number of open source games have even been made available on Steam.[508][509][510] Many free software games are also available from Flathub and Snap.

See also

References

  1. ↑ "Software Packages in 'stable', games section". Debian. https://packages.debian.org/stable/games/. 
  2. ↑ Tozzi, Christopher (10 December 2013). "Linux Foundation, Valve Promote Open Source Games for the Cloud". http://thevarguy.com/open-source-application-software-companies/linux-foundation-valve-promote-open-source-games-cloud. 
  3. ↑ Larabel, Michael (2012-06-13). "Most Open-Source Game Artwork is Awful". https://www.phoronix.com/scan.php?page=news_item&px=MTExODg. 
  4. ↑ Hargreaves, Shawn (July 1999). "Playing the Open Source Game". http://www.talula.demon.co.uk/games.html. 
  5. ↑ 5.0 5.1 Blake, Michael (22 June 2011). "PC Gaming: Doomed? or zDoomed?". http://www.ign.com/articles/2011/06/23/pc-gaming-doomed-or-zdoomed. 
  6. ↑ Dealessandri, Marie (2020-04-15). "What is the best game engine: is Godot right for you?". https://www.gamesindustry.biz/articles/2020-04-14-what-is-the-best-game-engine-is-godot-right-for-you. 
  7. ↑ Stallman, Richard. "Nonfree DRM'd Games on GNU/Linux: Good or Bad?". GNU Project. https://www.gnu.org/philosophy/nonfree-games.en.html. 
  8. ↑ Marchant, Julie. "The Gaming Trap". http://onpon4.github.io/articles/gaming-trap.html. 
  9. ↑ Lunduke, Bryan (2015-10-30). "The Gaming Paradox: There just aren't enough Free and Open Source video games". https://www.networkworld.com/article/2999877/the-gaming-paradox-there-just-arent-enough-free-and-open-source-video-games.html. 
  10. ↑ Matthews, Matt (2002-08-31). "Linux Games". http://freshmeat.net/articles/view/543. 
  11. ↑ "About". http://wz2100.net/old-site/about. 
  12. ↑ Geitgey, Adam (2004-08-31). "Where are the Good Open Source Games?". http://www.osnews.com/story/8146. 
  13. ↑ Newman, Jared (21 September 2015). "Steam for Linux tops 1,500 games as launch of Valve's Steam Machines nears". PC World. http://www.pcworld.com/article/2984922/software-games/steam-for-linux-tops-1500-games-as-launch-of-valves-steam-machines-nears.html. Retrieved 20 July 2022. 
  14. ↑ Orland, Kyle; Machkovech, Sam (15 October 2015). "Steam's living room hardware blitz gets off to a muddy start". https://arstechnica.com/gaming/2015/10/steams-living-room-hardware-blitz-gets-off-to-a-muddy-start/2/. 
  15. ↑ Orland, Kyle (26 February 2015). "The state of Linux gaming in the SteamOS era". https://arstechnica.com/gaming/2015/02/the-state-of-linux-gaming-in-the-steamos-era/. 
  16. ↑ Stallman, Richard. "Linux and the GNU System". GNU Project. https://www.gnu.org/gnu/linux-and-gnu.html. "Some of our system components, the programming tools, became popular on their own among programmers, but we wrote many components that are not tools. We even developed a chess game, GNU Chess, because a complete system needs games too." 
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  18. ↑ "Terminal fun: Games and more...". 2009-09-02. https://www.cnet.com/tech/computing/terminal-fun-games-and-more/. 
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  20. ↑ Barton, Matt (2007-11-14). "Computer role-playing games for GNU/Linux". http://www.freesoftwaremagazine.com/articles/role_playing_games_gnu_linux. 
  21. ↑ Dawe, Liam (2020-01-28). "Isleward - a free and open source cross-platform roguelike MMO". https://www.gamingonlinux.com/2020/01/isleward-a-free-and-open-source-cross-platform-roguelike-mmo/. Retrieved 2023-02-07. 
  22. ↑ M. Zinoune. "19 Awesome Open Source Games for Linux". https://www.unixmen.com/gaming-on-linux1131-19-awesome-opensource-games-for-linux/. 
  23. ↑ Dawe, Liam (2022-03-24). "Shattered Pixel Dungeon arrives on Steam eight years later". https://www.gamingonlinux.com/2022/03/shattered-pixel-dungeon-arrives-on-steam-eight-years-later/. Retrieved 2023-02-06. 
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  48. ↑ "Maverick Model 3D". https://software.pureos.net/sw/mm3d.desktop. 
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  50. ↑ "ACM review". https://nixbit.com/software/acm-review/. 
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  59. ↑ "Raydium 0.680 review". https://nixbit.com/software/raydium-review/. 
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  78. ↑ Olakunle, Olanrewaju (2022-02-05). "20 Best Programming Languages for Game Development". https://www.dunebook.com/best-programing-languages-for-games/. "Niklaus Wirth is the creator of this language. A lot of game engines like Mingro, Nxpascal, Castle game engines are written in Pascal language." 
  79. ↑ "ZenGL". https://wiki.freepascal.org/ZenGL. 
  80. ↑ "LÖVR — Open Source 3D Framework". 2021-08-07. https://gamefromscratch.com/lovr-open-source-3d-framework/. 
  81. ↑ "LÖVE3D". https://love2d.org/wiki/Love3D. 
  82. ↑ "Experimenting with Amethyst: A Rust game engine". 2019-06-10. https://vaporsoft.net/amethyst-series/. 
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  84. ↑ "Fyrox Game Engine — Rust Powered RG3D Renamed". 2022-01-10. https://gamefromscratch.com/fyrox-game-engine-rust-powered-rg3d-renamed/. 
  85. ↑ Jonah, Victor (2022-05-20). "5 Rust game engines to consider for your next project". https://blog.logrocket.com/5-rust-game-engines-consider-next-project/. 
  86. ↑ "Java 3D Game Engine". 2014-04-21. https://coding-guru.com/java-3d-game-engine/. 
  87. ↑ "A Closer Look at jMonkeyEngine". 2015-08-31. https://gamefromscratch.com/a-closer-look-at-jmonkeyengine/. 
  88. ↑ Madar, Jason (May 2010). "Learn Java in 3D with the Env3D library". https://www.researchgate.net/publication/247930830. 
  89. ↑ "Korge Engine — Kotlin Powered Open Source Game Engine". 2021-01-26. https://gamefromscratch.com/korge-engine-kotlin-powered-open-source-game-engine/. 
  90. ↑ "MiniGDX Kotlin Game Development Framework". 2021-05-14. https://gamefromscratch.com/minigdx-kotlin-game-development-framework/. 
  91. ↑ Mukherjee, Soham. "Top 10 Golang Game Development Libraries". https://golang.company/blog/top-10-golang-game-development-libraries. 
  92. ↑ Gutekanst, Stephen (2021-04-10). "My game development journey". https://devlog.hexops.com/2021/increasing-my-contribution-to-zig-to-200-a-month/. "I spent the next 4 years of my life, almost 100% full-time working on Azul3D, a game engine in Go - and spent only minimal time attending online community college on the weekends." 
  93. ↑ "Best Golang Libraries For Game Development". https://siit.co/blog/best-golang-libraries-for-game-development/5298. 
  94. ↑ Linhares, Frederico (2023-06-09). "High-performance real-time 3D graphics with Vulkan". https://rubykaigi.org/2023/presentations/fredolinhares.html. 
  95. ↑ "Hedged 1.2". 31 May 2021. https://archive.org/details/hedged-1.2. "It was written in Gambas 3.15.2 and uses Qt 5 for interfaces, SDL 2 for audio and OpenGL 2.1 for rendering. Created in six days, it features a beta version of the second revision of the PS Tech engine." 
  96. ↑ angros47 (May 2012). "Blitz3D Legacy: History Repeats". http://back2basic.phatcode.net/?Issue-%236/Blitz3D-Legacy%3A-History-Repeats. 
  97. ↑ Bansal, Rohan (2020-05-25). "2D Game Development with Heaps.io and Haxe". https://blog.rbansal.dev/gamedev-heaps-and-haxe/. 
  98. ↑ Witters, Koen (2017-09-06). "Indepth look at 2D game engines for Haxe". https://dewitters.com/indepth-look-at-2d-game-engines-for-haxe/. 
  99. ↑ noeticsunil (2022-02-19). "Top 10 HTML5, JavaScript 3D Game Engines and Frameworks". https://noeticforce.com/best-3d-javascript-game-engines-frameworks-webgl-html5. 
  100. ↑ Shokeen, Monty (2021-09-26). "8 Best Free and Open-Source JavaScript Game Engines". https://code.tutsplus.com/articles/best-free-open-source-javascript-game-engines-and-libraries--cms-38277. 
  101. ↑ "8 Best Javascript Game Engines". 2023-08-02. https://www.geeksforgeeks.org/8-best-javascript-game-engines/. 
  102. ↑ "Ursina Engine". 2020-01-27. https://gamefromscratch.com/ursina-engine/. 
  103. ↑ Dawe, Liam (2014-03-23). "Maratis Another Open-Source Game Engine". https://www.gamingonlinux.com/2014/03/maratis-another-opensource-game-engine/. 
  104. ↑ Jordan, Justine (2021-08-12). "C++ 2D Game Engines that Make Game Development Easy & Enjoyable". https://narrasoft.com/the-top-3-three-c-plus-plus-plusplus-cpp-cplusplus-2d-game-engines-2021/. 
  105. ↑ "Think You're Cut out for Doing Cocos3D?". 2020-01-01. https://ncircletech.com/blogs/think-youre-cut-out-for-doing-cocos3d. 
  106. ↑ Saqib, M. (2021-12-21). "Delta Engine – 2D and 3D Application Engine written in C++". https://www.mycplus.com/featured-articles/delta-engine/. "Furthermore, the Delta Engine can be easily transformed between Java C++, C#, Objective-C and JavaScript. This makes it ultimately a cross platform Game Engine." 
  107. ↑ Priya, Bala (2023-01-15). "9 Best Python Game Development Libraries/Frameworks". https://geekflare.com/python-game-development-libraries-frameworks/. 
  108. ↑ "UPBGE Blender Game Engine 0.36 Released". 2023-06-10. https://gamefromscratch.com/upbge-blender-game-engine-0-36-released/. 
  109. ↑ "A closer look at the Urho3D Game Engine". 2014-10-16. https://gamefromscratch.com/a-closer-look-at-the-urho3d-game-engine/. 
  110. ↑ "Urho3D Is Dead…ish". 2023-01-23. https://gamefromscratch.com/urho3d-is-dead-ish/. 
  111. ↑ Petty, Josh (24 December 2018). "Top 12 Free Game Engines For Beginners & Experts Alike". https://conceptartempire.com/free-game-engines/. 
  112. ↑ "GDevelop Engine Adds 3D Support". 2023-05-18. https://gamefromscratch.com/gdevelop-engine-adds-3d-support/. 
  113. ↑ Kepley, Travis (2011-11-30). "How we almost lost Doom 3 and id for good". https://opensource.com/life/11/11/we-almost-lost-doom-3-id-for-good. 
  114. ↑ Wilson, Hamish (2022-03-14). "Building a Retro Linux Gaming Computer - Part 16: We Are All Doomed". https://www.gamingonlinux.com/2022/03/building-a-retro-linux-gaming-computer-part-16-we-are-all-doomed/. 
  115. ↑ Plunkett, Luke (2023-02-12). "As More Games Disappear Forever, John Carmack Has Some Great Advice About Preservation". https://kotaku.com/vr-meta-facebook-carmack-shutdown-failure-close-echo-1850076140. 
  116. ↑ Papadopoulos, John (2015-01-19). "Epic's Tim Sweeney Says That Unreal Engine 1 May One Day Go Open Source". https://www.dsogaming.com/news/epics-tim-sweeney-says-that-unreal-engine-1-may-one-day-go-open-source/. 
  117. ↑ O'Conner, Alice (2012-09-11). "Torque 3D engine going open-source and free". https://www.shacknews.com/article/75700/torque-3d-engine-going-open-source-and-free. 
  118. ↑ Dawe, Liam (2023-11-01). "War Thunder game engine Dagor Engine from Gaijin now open source". https://www.gamingonlinux.com/2023/11/war-thunder-game-engine-dagor-engine-from-gaijin-now-open-source/. 
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  120. ↑ Kerr, Chris (May 19, 2020). "King has open sourced and relinquished control of the Defold game engine". Gamasutra. https://www.gamasutra.com/view/news/363208/King_has_open_sourced_and_relinquished_control_of_the_Defold_game_engine.php. 
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  123. ↑ Chakraborty, Angsuman (20 August 2007). "How To Play Doom, Heretic, Hexen & Strife in Linux (Free)". http://tech.gaeatimes.com/index.php/archive/how-to-play-doom-heretic-hexen-strife-in-linux-free/. 
  124. ↑ MrCopilot (17 December 2007). "Free Quake: Open Source Gamer's Guide to Free Games". http://voices.yahoo.com/free-quake-open-source-gamers-guide-free-games-701187.html. 
  125. ↑ Dawe, Liam (8 February 2017). "Quetoo, a free and open source FPS is looking to get on Steam". https://www.gamingonlinux.com/2019/08/based-on-the-classic-fps-warsow-the-new-warfork-is-now-live-in-early-access/. 
  126. ↑ "Terminal Overload". https://www.linuxlinks.com/terminal-overload-home-made-experimental-multiplayer-fps-game/. 
  127. ↑ Dawe, Liam (26 September 2017). "Uebergame, a free and open source shooter has a new release". https://www.gamingonlinux.com/2017/09/uebergame-a-free-and-open-source-shooter-has-a-new-release/. 
  128. ↑ Gillen, Kieron (2009-11-18). "Harmony in My Head: Harmony". https://www.rockpapershotgun.com/harmony-in-my-head-harmony. 
  129. ↑ Dawe, Liam (2018-04-19). "The Adventures of Square is mildly amusing retro FPS that's free with a second episode out now". https://www.gamingonlinux.com/2018/04/the-adventures-of-square-is-mildly-amusing-retro-fps-thats-free-with-a-second-episode-out-now/. 
  130. ↑ "The Hunted Chronicle 2 review". https://nixbit.com/software/the-hunted-chronicle-review/. 
  131. ↑ Tricky (2012-08-25). "Force: Leashed". https://jayisgames.com/review/force-leashed.php. 
  132. ↑ Yu, Derek (2012-01-16). "RetroBlazer (Alpha)". https://www.tigsource.com/2012/01/16/retroblazer-alpha/. 
  133. ↑ Sepht (2007-12-29). "Comparison of free software shooters". http://www.linux-gamers.net/smartsection.item.81/comparison-of-free-software-shooters.html. 
  134. ↑ "GPL GtkRadiant". 18 February 2006. http://www.bluesnews.com/cgi-bin/board.pl?action=viewstory&threadid=64683. 
  135. ↑ Manikandan (2021-10-11). "LibreSprite Animated Sprite Editor and Pixel Art Tool". https://connectwww.com/libresprite-animated-sprite-editor-and-pixel-art-tool/63386/. 
  136. ↑ "OGMO Level Editor". 2019-11-18. https://gamefromscratch.com/ogmo-level-editor/. 
  137. ↑ Dawe, Liam (2022-03-30). "Free and open source level editor LDtk 1.0 is out now". https://www.gamingonlinux.com/2022/03/free-and-open-source-level-designer-ldtk-10-is-out-now/. 
  138. ↑ Larabel, Michael (2014-09-03). "Sony Open-Sources A Universal Game Level Editor". https://www.phoronix.com/news/MTc3OTc. 
  139. ↑ McKenzie, Theodore (2021-06-21). "Tiled: A Flexible and Free-to-Use Level Editor". https://80.lv/articles/tiled-a-flexible-and-free-to-use-level-editor. 
  140. ↑ Bruner, Nick (2012-12-10). "Introduction to Tiled Map Editor: A Platform-Agnostic Tool for Level Maps". https://gamedevelopment.tutsplus.com/tutorials/introduction-to-tiled-map-editor-a-platform-agnostic-tool-for-level-maps--gamedev-2838. 
  141. ↑ Dawe, Liam (2021-05-11). "Check out Sonic Robo Blast 2, a 3D open-source Sonic the Hedgehog fangame built from Doom". https://www.gamingonlinux.com/2021/05/check-out-sonic-robo-blast-2-a-3d-open-source-sonic-the-hedgehog-fangame-built-from-doom/. 
  142. ↑ Dawe, Liam (2021-06-13). "Wolfenstein - Blade of Agony gets another big update in the 3.1 release". https://www.gamingonlinux.com/2021/07/wolfenstein-blade-of-agony-gets-another-big-update-in-the-31-release/. 
  143. ↑ Bardin, Maxim (2009-11-09). "I Live, Again...". https://linuxgamingnews.org/2009/11/09/i-live-again/. 
  144. ↑ Smith, Graham (2015-04-29). "SUPERQOT: Play Quake With SUPERHOT's Time Mechanic". https://www.rockpapershotgun.com/superqot-superhot. 
  145. ↑ Papadopoulos, John (2021-01-29). "Slayer's Testament is a Doom 2016/Eternal Demake in the Quake Engine". https://www.dsogaming.com/news/slayers-testament-is-a-doom-2016-eternal-demake-in-the-quake-engine/. 
  146. ↑ Dawe, Liam (2021-07-09). "DOOMBRINGER is a new first-person shooter from veterans of the Doom and Quake communities". https://www.gamingonlinux.com/2021/06/doombringer-is-a-new-first-person-shooter-veterans-of-the-doom-and-quake-communities/. 
  147. ↑ Dawe, Liam (2019-03-26). "Hedon, another retro FPS using the GZDoom game engine is officially out". https://www.gamingonlinux.com/2019/03/hedon-another-retro-fps-using-the-gzdoom-game-engine-is-officially-out/. 
  148. ↑ Dawe, Liam (2021-08-16). "It's hard to believe Selaco is running on GZDoom in the latest 3 minute trailer". https://www.gamingonlinux.com/2021/08/its-hard-to-believe-selaco-is-running-on-gzdoom-in-the-latest-3-minute-trailer/. 
  149. ↑ Dawe, Liam (2021-08-03). "Vomitoreum is a FPS Metroidvania with a sprinkle of horror out now". https://www.gamingonlinux.com/2021/08/vomitoreum-is-a-fps-metroidvania-with-a-sprinkle-of-horror-out-now/. 
  150. ↑ Chalk, Andy (2023-04-06). "Supplice is a new retro-FPS made by Doom modders, and it really feels like old-school Doom". https://www.pcgamer.com/supplice-is-a-new-retro-fps-made-by-doom-modders-and-it-really-feels-like-old-school-doom/. 
  151. ↑ Dawe, Liam (2022-09-16). "A.W.O.L. is a new FREE retro FPS using the Build Engine (Duke Nukem 3D, Ion Fury)". https://www.gamingonlinux.com/2022/09/awol-is-a-new-free-retro-fps-using-the-build-engine-duke-nukem-3d-ion-fury/. 
  152. ↑ "Liblast – Godot Based Open Source Team Fortress Style Game". 2023-08-17. https://gamefromscratch.com/liblast-godot-based-open-source-team-fortress-style-game/. 
  153. ↑ lululaglue (2009-06-24). "Entretien avec l'équipe de Smokin'Guns" (in fr). http://www.jeuxlinux.fr/a269-Entretien_avec_lequipe_de_SmokinGuns.html. "Alas, artists are always conservative for their creations. For me, the most important thing was to have the code under a free license... it always leaves the opportunity for other creators to take over the game with new data, but it's a hell of a job! Honestly, I am for free, but free is not always the panacea and our creators do not want to find their babies anywhere without their consent. Anyone today who wants to offer free content to replace cc licensed content with better quality will be welcomed with open arms as a possible future team member :D And anyone who wants to use our content for another project is safe ask permission on our forum." 
  154. ↑ Dawe, Liam (19 August 2019). "Based on the classic FPS Warsow, the new Warfork is now live in Early Access". https://www.gamingonlinux.com/2019/08/based-on-the-classic-fps-warsow-the-new-warfork-is-now-live-in-early-access/. 
  155. ↑ Cass, Stephen (2009-04-07). "Wolfenstein: Old Code Never Dies". https://www.discovermagazine.com/mind/wolfenstein-old-code-never-dies. 
  156. ↑ "Review: Duke Nukem 3D: 20th Anniversary World Tour-Immature Fun With A Price". 2020-06-13. https://spiderslash.com/2020/07/13/duke-nukem-3d-20th-anniversary-world-tour/. 
  157. ↑ waltorious (2021-03-22). "History Lessons: Shadow Warrior". https://waltoriouswritesaboutgames.com/2021/03/22/history-lessons-shadow-warrior/. 
  158. ↑ Wuttke-Hohendorf, Nikolai (2023-10-03). "Duke Nukem 1+2 Remastered". https://lethalguitar.wordpress.com/2023/10/03/duke-nukem-12-remastered/. "If you’ve seen or used RigelEngine before, some of the new features will sound familiar – the project is in fact based on RigelEngine." 
  159. ↑ Wilson, Hamish (2017-03-08). "Some thoughts on The Original Strife: Veteran Edition". https://www.gamingonlinux.com/2017/03/some-thoughts-on-the-original-strife-veteran-edition/. 
  160. ↑ Tolito, Stephan (2011-02-02). "The Case Of The Identical Rabbit Games". Kotaku. http://kotaku.com/5750238/the-case-of-the-identical-rabbit-games. 
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  163. ↑ Wolters, Roland (2007-03-05). "KDE games: meet GGZ gaming zone". https://liquidat.wordpress.com/2007/03/05/kde-games-meet-ggz-gaming-zone/. 
  164. ↑ Spillner, Josef (2008-02-24). "GGZ Gaming Zone: Multiplayer gaming framework". https://archive.fosdem.org/2008/schedule/events/486.html. 
  165. ↑ Payne, Dennis (17 September 2021). "Open source game achievements". https://fedoramagazine.org/open-source-game-achievements/. 
  166. ↑ Campbell, Alex (6 April 2022). "Open source cloud gaming, play remote games for free". https://www.helpwire.app/blog/open-source-cloud-gaming/. 
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  168. ↑ Dawe, Liam (2014-07-16). "Live Streaming On Linux, Now With OBS Studio". https://www.gamingonlinux.com/2014/07/live-streaming-on-linux-now-with-obs-studio/. 
  169. ↑ Kenlon, Seth (25 October 2018). "Lutris: Linux game management made easy". https://opensource.com/article/18/10/lutris-open-gaming-platform. 
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  171. ↑ Wood, Evelyn (2016-10-06). "Succeeding MegaZeux". https://eev.ee/blog/2016/10/06/succeeding-megazeux/. 
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  176. ↑ "Pixelbox.js Game Engine". 2020-04-14. https://gamefromscratch.com/pixelbox-js-game-engine/. 
  177. ↑ Smith, Terrance (2023-01-09). "8 Free, Open Source Alternatives To Popular Games". https://gamerant.com/free-open-source-alternatives-popular-games/#tanks-of-freedom-ndash-alternative-to-advance-wars. 
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  180. ↑ Kuchnio, Jakub (2010-12-13). "Bomber Clone 0.11.9". https://www.pcworld.pl/ftp/bomber-clone.html. 
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  183. ↑ Armstrong, Ryan (2020-12-15). "Ace of Penguins". https://zerker.ca/home/ace-of-penguins.html. 
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  185. ↑ "Pang Zero 0.17 review". https://nixbit.com/software/pang-zero-review/. 
  186. ↑ "PiX Pang 1.6d review". https://nixbit.com/software/pix-pang-review/. 
  187. ↑ Plotkin, Andrew (2018-11-19). "System Syzygy". http://blog.zarfhome.com/2018/11/system-syzygy.html. 
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  190. ↑ "Epiphany". https://www.thinkpenguin.com/gnu-linux/epiphany. 
  191. ↑ Taibah, Rami (2009-06-27). "Numpty Physics: An Addictive Crayola-istic Puzzle Game!". https://rtaibah.com/2009/06/27/numpty-physics-an-addictive-crayola-istic-puzzle-game/. 
  192. ↑ "Pathological 1.1.3 review". https://nixbit.com/software/pathological-review/. 
  193. ↑ Kuchnio, Jakub (2010-10-26). "PainTown 3.3.1". https://www.pcworld.pl/ftp/gry_10764/PainTown-3-3-1.html. 
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  195. ↑ Bandel, David A. (2000-01-01). "Focus on Software". https://www.linuxjournal.com/article/3752. 
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  197. ↑ Pal, Shayon (2009-09-01). "Linux Game Review: LBreakOut 2". https://www.opensourceforu.com/2009/09/linux-game-review-lbreakout-2/. 
  198. ↑ "Recommended software from Deepin Software Center". 2014-01-09. https://www.deepin.org/en/recommended-software-from-deepin-software-center-010914/. 
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  205. ↑ "xscorch 0.2.0 review". https://nixbit.com/software/xscorch-review/. 
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  209. ↑ "Sable 1.0 review". https://nixbit.com/software/sable-review/. 
  210. ↑ "Circus Linux! 1.0.3 review". https://nixbit.com/software/circus-linux-review/. 
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  216. ↑ "Froggix". https://github.com/scifly1/froggix. 
  217. ↑ "OpenMortal 0.7". https://openmortal.informer.com. 
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  224. ↑ "Tux Football 0.1 review". https://nixbit.com/software/tux-football-review/. 
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  231. ↑ "Violetland". https://www.linuxlinks.com/violetland/. 
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  233. ↑ "Minetest 5.4.0 to make downloading mods and games a lot easier" (in en). 2021-02-01. https://www.gamingonlinux.com/2021/02/minetest-5-4-to-make-downloading-mods-and-games-a-lot-easier/. 
  234. ↑ "SolarWolf". https://www.linuxlinks.com/solarwolf/. 
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  245. ↑ Welch, Chris (2012-09-12). "Play this: 'HexGL' is an unabashed 'Wipeout' clone built with HTML5, JavaScript, and WebGL". https://www.theverge.com/2012/9/1/3285326/play-this-hexgl-wipeout-clone-html5. 
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  247. ↑ Dawe, Liam (2015-10-24). "Endless Sky, An Open Source & Open World Space Sim Inspired By Escape Velocity". https://www.gamingonlinux.com/2015/10/endless-sky-an-open-source-open-world-space-sim-inspired-by-escape-velocity/. 
  248. ↑ Dawe, Liam (2020-12-17). "Free and open source space sim 'Naev' has a big overhaul update out now". https://www.gamingonlinux.com/2020/12/free-and-open-source-space-sim-naev-has-a-big-overhaul-update-out-now/. 
  249. ↑ MrCopilot (2007-12-31). "Free Platformers: Open Source Gamers Guide to Free Games Part 3". http://voices.yahoo.com/free-platformers-open-source-gamers-guide-free-739405.html?cat=19. 
  250. ↑ "SuperTux 3D". https://download.tuxfamily.org/sdtraces/BottinHTML/Bottin_R-S_files/SuperTux_3D-13047.html. 
  251. ↑ Rustybolts (2011-02-01). "Warmux 11.01". https://www.gamingonlinux.com/2011/02/warmux-1101/. 
  252. ↑ Dawe, Liam (2022-12-19). "The free and open source Worms-like 'Hedgewars' is now on Steam". https://www.gamingonlinux.com/2022/12/the-free-and-open-source-worms-like-hedgewars-is-now-on-steam/. 
  253. ↑ Anderson, Lee (2000-04-12). "Open-source, networkable shooter has Linux gamers buzzing". https://www.cnn.com/2000/TECH/computing/04/12/linux.net.games.idg/index.html. 
  254. ↑ Wilson, Hamish (2023-02-06). "Building a Retro Linux Gaming Computer - Part 24: Mother Knows Best". https://www.gamingonlinux.com/2023/02/building-a-retro-linux-gaming-computer-part-24-mother-knows-best/. Retrieved 2023-02-06. 
  255. ↑ Love, Dylan (3 October 2021). "11 Classic Games You Can Now Play For Free". https://www.businessinsider.com/open-source-games-2011-10. 
  256. ↑ 256.0 256.1 Bolding, Jonathan (4 September 2022). "Y'all know about these huge lists of free, open-source game clones, right?". https://www.pcgamer.com/yall-know-about-these-huge-lists-of-free-open-source-game-clones-right/. 
  257. ↑ Gagné, Marcel (2007-12-01). "Cooking with Linux - Exciting Arcade Action in Glorious ASCII". https://www.linuxjournal.com/article/9901. 
  258. ↑ Georgiev, Georgi Dimitrov (2011-12-14). "Abe's Amazing Adventure, A Dangerous Dave 2 like GNU Linux / FreeBSD Arcade Game substitute". https://www.pc-freak.net/blog/abes-amazing-adventure-a-dangerous-dave-2-like-gnu-linux-freebsd-arcade-game-substitute/. 
  259. ↑ mrhollow (2004-08-13). "Adventures on Planet Zephulor". http://happypenguin.org/show?adventures+on+planet+zephulor. 
  260. ↑ OvErLoRd. "Alex the Allegator 4". http://www.reloaded.org/download/Alex-Allegator-4/38/. 
  261. ↑ "Amphetamine 0.8.10 review". https://nixbit.com/software/amphetamine-review/. 
  262. ↑ Manikandan (2022-12-03). "B.A.L.L.Z. Platform Game". https://connectwww.com/cows-revenge-pixel-art-platform-game/63950/. 
  263. ↑ Manikandan (2022-05-26). "Cow's Revenge Pixel Art Platform Game". https://connectwww.com/cows-revenge-pixel-art-platform-game/63950/. 
  264. ↑ "Gilbert and the doors". https://download.tuxfamily.org/sdtraces/BottinHTML/Bottin_D-J_files/Gilbert_and_the_doors-15421.html. 
  265. ↑ "Go Ollie!". https://download.tuxfamily.org/sdtraces/BottinHTML/Bottin_D-J_files/Gilbert_and_the_doors-15421.html. 
  266. ↑ Yu, Derek (2010-02-05). "GunFu Deadlands". https://www.tigsource.com/2010/02/05/gunfu-deadlands/. 
  267. ↑ Emms, Steve (2017-12-15). "JVGS – minimalistic platform game". https://www.linuxlinks.com/jvgs/. 
  268. ↑ Edward, Lii (2012-03-17). "MeAndMyShadow puzzle platformer V0.3 Released". https://www.gamingonlinux.com/2012/03/meandmyshadow-puzzle-platformer-v03-released/. 
  269. ↑ "Mr. Rescue - Throw people out of a window of a burning building, all via this 2D Platformer". 2013-05-13. https://www.indieretronews.com/2013/05/mr-rescue-throw-people-out-of-window-in.html. 
  270. ↑ "Nikwi Deluxe 1.0 review". https://nixbit.com/software/nikwi-deluxe-review/. 
  271. ↑ Jorge, Julien (2010-11-10). "Nouvelle version du jeu Plee the Bear". https://linuxfr.org/news/nouvelle-version-du-jeu-plee-the-bear. 
  272. ↑ "Video game Super Bombinhas". 2021-12-03. https://freakspot.net/en/video-game-Super-Bombinhas/. 
  273. ↑ "Python everywhere: computer games". 2009-04-02. http://blog.sp.or.at/posts/200904python-everywhere-computer-games.html. 
  274. ↑ Pot, Justom (2010-11-03). "5 Casual Linux Games You Probably Don't Know About". https://www.makeuseof.com/tag/5-casual-linux-games/. 
  275. ↑ Negus, Christopher (2009-04-29). Fedora 10 and Red Hat Enterprise Linux Bible. United States: John Wiley & Sons. p. 287. ISBN 9780470485460. https://books.google.com/books?id=VHIteZ-uvlQC. 
  276. ↑ "Anagramarama". 2006-10-01. https://pressanykey.simplyahobby.com/2006/10/01/anagramarama/. 
  277. ↑ Gagné, Marcel (2006-07-01). "Cooking with Linux - A Gem of an Idea". https://www.linuxjournal.com/article/8978. 
  278. ↑ "BBM 0.3.1 review". https://nixbit.com/software/bbm-review/. 
  279. ↑ "Battery". https://trilarion.github.io/opensourcegames/games/B.html#battery. 
  280. ↑ "Brikx". 2009-09-03. https://download.tuxfamily.org/sdtraces/BottinHTML/Bottin_0-C_files/Brikx-7099.html. 
  281. ↑ "Chroma". https://trilarion.github.io/opensourcegames/games/C.html#chroma. 
  282. ↑ "Dynamite 1.1 review". https://nixbit.com/software/dynamite-review/. 
  283. ↑ Dawe, Liam (2011-05-27). "Hex-a-Hop...heard of it?". https://www.gamingonlinux.com/2011/05/hexahopheard-of-it/. 
  284. ↑ Brito, Edivaldo (2023-02-25). "Como instalar o jogo irrlamb no Linux via Flatpak". https://www.edivaldobrito.com.br/como-instalar-o-jogo-irrlamb-no-linux-via-flatpak/. 
  285. ↑ Bandel, David (2003-12-01). "UpFront". https://www.linuxjournal.com/article/7122. 
  286. ↑ Tarason, Dominic (2019-01-10). "Marble Marcher is what happens when Monkey Ball meets math". https://www.rockpapershotgun.com/marble-marcher-is-what-happens-when-monkey-ball-meets-math. 
  287. ↑ Black, Michael (2013-11-18). "Memonix 1.6 Review". https://www.download3k.com/Games/Puzzles-Logic/Download-Memonix.html. 
  288. ↑ Emms, Steve (2023-10-28). "Minilens – puzzle-platform game set on post-apocalyptic Earth". https://www.linuxlinks.com/minilens-puzzle-platform-game-post-apocalyptic-earth/. 
  289. ↑ J Vandehey, Marc (2016-09-07). "RainCat: Lesson 1". https://medium.com/@marc.vandehey/raincat-lesson-1-79a750ef319f. 
  290. ↑ "Review: Tetzle". 2018-02-28. https://www.godmindedgaming.com/reviewmgr.php?key=tetzle. 
  291. ↑ "Wizznic!". https://trilarion.github.io/opensourcegames/games/W.html#wizznic. 
  292. ↑ "Xye". https://trilarion.github.io/opensourcegames/games/X.html#xye. 
  293. ↑ Gaara, Alexander (2014-12-15). "Apricots, another of my entertaining 2D games". https://blog.desdelinux.net/en/apricots-otro-de-mis-entretenidos-juegos-2d/. 
  294. ↑ "Airstrike". https://download.tuxfamily.org/sdtraces/BottinHTML/Bottin_0-C_files/Airstrike-6897.html. 
  295. ↑ "Avoision". 2018-05-26. http://www.freebsdsoftware.org/games/avoision.html. 
  296. ↑ Popov, Dimitri (2007-08-17). "Battle Tanks is a blast". https://www.linux.com/news/battle-tanks-blast/. 
  297. ↑ "Barrage 1.0.2 review". https://nixbit.com/software/barrage-review/. 
  298. ↑ Coval, Philippe (2020-11-22). "My DiY Pinball on Debian". https://mdco2.mini.debconf.org/talks/23-my-diy-pinball-on-debian/. 
  299. ↑ "enemy lines 6 1.1 review". https://nixbit.com/software/enemy-lines-6-review/. 
  300. ↑ "Enemy Lines 7 0.6 review". https://nixbit.com/software/enemy-lines-7-review/. 
  301. ↑ Emms, Steve (2023-10-29). "F.L.A.W – top-down wizard battle game". https://www.linuxlinks.com/flaw/. 
  302. ↑ "Free Tennis 0.4.8 review". https://nixbit.com/software/free-tennis-review/. 
  303. ↑ Georgiev, Georgi Dimitrov (2011-12-22). "Geki2 and Geki3 a Xenon 2 Megablast like games for GNU / Linux and FreeBSD". https://www.pc-freak.net/blog/geki2-and-geki3-a-xenon-2-megablast-like-games-for-gnu-linux-and-freebsd/. 
  304. ↑ "Hase". https://git.holarse-linuxgaming.de/wiki/hase. 
  305. ↑ "Help Hannah's Horse". https://download.tuxfamily.org/sdtraces/BottinHTML/Bottin_D-J_files/Help_Hannah_s_Horse-11375.html. 
  306. ↑ Negus, Christopher (2006-11-24). Live Linux CDs: Building and Customizing Bootables. United States: Prentice Hall Professional. p. 311. ISBN 9780132432740. https://books.google.com/books?id=2S3eUgb39C8C. 
  307. ↑ "Jammer The Gardener – cartoon game". 2022-11-13. https://www.linuxlinks.com/jammerthegardener/. 
  308. ↑ Georgiev, Georgi Dimitrov (2012-01-17). "Kill everything that Moves (KETM) an arcade spaceship Tyrian GNU / Linux game". https://www.pc-freak.net/blog/kill-everything-that-moves-ketm-an-arcade-spaceship-tyrian-gnu-linux-game/. 
  309. ↑ Knight, John (2008-11-11). "Kuklomenos—Weird Space Shooter?". https://www.linuxjournal.com/content/kuklomenos-weird-space-shooter. 
  310. ↑ "Librerama". https://trilarion.github.io/opensourcegames/games/L.html#librerama. 
  311. ↑ nilfilter (2003-10-15). "Luola". http://happypenguin.org/show?Luola. 
  312. ↑ Holm, Joshua Allen (2018-01-08). "5 arcade-style games for Linux". https://opensource.com/article/18/1/arcade-games-linux. 
  313. ↑ "Hikou no mizu". https://framalibre.org/content/hikou-no-mizu. 
  314. ↑ "Moagg 0.18 review". https://nixbit.com/software/moagg-review/. 
  315. ↑ "OilWar 1.2.1 review". https://nixbit.com/software/oilwar-review/. 
  316. ↑ "OldSkoolGravityGame". https://download.tuxfamily.org/sdtraces/BottinHTML/Bottin_K-O_files/OldSkoolGravityGame-12127.html. 
  317. ↑ Emms, Steve (2023-10-29). "Orbital Eunuchs Sniper". https://www.linuxlinks.com/OrbitalEunuchs/. 
  318. ↑ "Overgod". https://download.tuxfamily.org/sdtraces/BottinHTML/Bottin_K-O_files/Overgod-12220.html. 
  319. ↑ "Powermanga". Linux Format (Australia: Future plc). December 22, 2015. https://www.pressreader.com/australia/linux-format/20151222/282394103399790. Retrieved 2023-02-08. 
  320. ↑ Doane, J. Neil (15 March 2018). "Open-Source Gaming for Linux". http://noframes.linuxjournal.com/articles/culture/0026.html/. 
  321. ↑ "Ri-li 2.0.0 review". https://nixbit.com/software/ri-li-review/. 
  322. ↑ "Super Transball 2". https://download.tuxfamily.org/sdtraces/BottinHTML/Bottin_R-S_files/Super_Transball_2-13045.html. 
  323. ↑ "Tecnoball Z - Unreleased Amiga Arkanoid style game sees light of day!". 2015-04-19. https://www.indieretronews.com/2015/04/tecnoball-z-unreleased-amiga-arkanoid.html. 
  324. ↑ "The Sheep Killer 1.1 review". https://nixbit.com/software/the-sheep-killer-review/. 
  325. ↑ "Variations on Rockdodger 0.4 review". https://nixbit.com/software/variations-on-rockdodger-review/. 
  326. ↑ "Linux Action RPG Game 'Warlock's Gauntlet' Updated". 2012-03-22. https://www.ubuntuvibes.com/2012/03/linux-action-rpg-game-warlocks-gauntlet.html. 
  327. ↑ "Zorn 0.1.6 review". https://nixbit.com/software/zorn-review/. 
  328. ↑ Anderson, Lee (December 20, 2000). "Top 10 Linux games for the holidays". CNN. http://archives.cnn.com/2000/TECH/computing/12/20/linux.games.idg/index.html. 
  329. ↑ "OpenSource GamePower Vol.2". 2006-01-06. https://usk.de/en/usktitle/15274/. 
  330. ↑ 330.0 330.1 Partho (28 March 2009). "Top 10 Free Linux Games in 2009". http://tech.gaeatimes.com/index.php/archive/top-10-free-linux-games-in-2009/. 
  331. ↑ Rapenne, Solène (2021-03-07). "Top 12 best opensource games available on OpenBSD". https://dataswamp.org/~solene/2021-03-07-openbsd-best-games.html. 
  332. ↑ "Games on OpenSolaris - Games List". 2009-10-26. http://hub.opensolaris.org/bin/view/Community+Group+games/WebHome. 
  333. ↑ "Games". http://src.gnu-darwin.org/ports/games/. 
  334. ↑ gameblabla (2016-11-08). "ToaruOS - Unix-like "hobby" operating system". https://codewalr.us/index.php?topic=1700.0. "I ported Helicopters, one of my games, just to show you how easy you can port games to it." 
  335. ↑ Saeki, Takaya (2020-10-04). "How we ran a Unix-like OS (Xv6) on our home-built CPU with our home-built C compiler". https://fuel.edby.coffee/posts/how-we-ported-xv6-os-to-a-home-built-cpu-with-a-home-built-c-compiler/. "However, some teams put more energy into doing fun such as running games or playing music by connecting a speaker with their CPU. Group 6, to which I belonged, was a group of such people who loved entertainment, and we decided to run an OS as our team goal." 
  336. ↑ "Packages". https://www.fiwix.org/packages.html. "lxdoom-1.4.4" 
  337. ↑ "Trying Out Redox". https://doc.redox-os.org/book/ch02-04-trying-out-redox.html. 
  338. ↑ Bates, Kryzt (2023-04-10). "Developed based on the Cocos 2dx engine, the game "Happy Match" was successfully ported to OpenHarmony". https://www.gamingdeputy.com/developed-based-on-the-cocos-2dx-engine-the-game-happy-match-was-successfully-ported-to-openharmony/. 
  339. ↑ "SerenityOS Ports - Games". https://ports.serenityos.net/#a-games. 
  340. ↑ Gatlan, Sergiu (2008-11-12). "Six Free and Must Have Games for Your Mac". http://news.softpedia.com/news/Six-Free-and-Must-Have-Games-for-Your-Mac-96944.shtml. 
  341. ↑ Krishnalal, Arjun (2019-07-16). "Here Are Five Open Source Games for Windows You Can Play for Free". https://techwiser.com/open-source-games-for-windows/. 
  342. ↑ "Games". https://palmopensource.com/palmdb.php?category=9. 
  343. ↑ Allen Holm, Joshua (2015-10-26). "12 open source games for Android". https://opensource.com/life/16/10/12-open-source-games-android. 
  344. ↑ "Open Source iOS Game List – Source Code To Games In The App Store". 2014-08-25. https://maniacdev.com/open-source-ios-game-list-source-code-to-games-in-the-app-store. 
  345. ↑ Pendleton, Bob. "Game Programming with the Simple DirectMedia Layer". https://dl.acm.org/doi/fullHtml/10.5555/774727.774728. "SDL officially supports Linux, Windows, BeOS, Mac OS, Mac OS X, FreeBSD, OpenBSD, BSD/OS, Solaris and IRIX. SDL also works with Windows CE, AmigaOS, Atari, QNX, NetBSD, AIX, Tru64 UNIX and SymbianOS. However, those OSes are not yet officially supported. This means if you write your application using SDL, you can port it with minimal rework to all those OSes. SDL provides a portable way to write games and multimedia applications on every major OS currently in use." 
  346. ↑ Kemp, Steve (2021-04-26). "Writing a text-based adventure game for CP/M". https://blog.steve.fi/writing_a_text_based_adventure_game_for_cp_m.html. 
  347. ↑ "List of Open Source Software - Games". https://www.os2world.com/wiki/index.php/List_of_Open_Source_Software#Games. 
  348. ↑ Baker, Jason (2015-07-21). "Linux game review: OpenTTD". https://opensource.com/life/15/7/linux-game-review-openttd. "While it runs on a number of platforms (including some surprising ones, like ReactOS, BeOS, and OS/2), the Linux installation of OpenTTD is quick and easy." 
  349. ↑ "History - Year 2000". https://stendhalgame.org/wiki/History#Year_2000. "Also a BeOS version was released and hence Arianne was one of the first BeOS open source games." 
  350. ↑ Zinoune, M. (2011). "Let 'The Battle for Wesnoth' continue with latest version 1.9.9". https://www.unixmen.com/let-the-battle-for-wesnoth-continue-with-latest-version-199/. "It is multi-platform game, which is easy to install on Windows to MacOSX and open source platform such as FreeBSD, Open BSD, NetBSD and now historic BeOS." 
  351. ↑ "Games". https://www.riscos.info/index.php/Games. 
  352. ↑ "Packages in category: Games". http://www.riscos.info/packages/GamesDetails.html. 
  353. ↑ Cloverleaf RISC OS. "RISC OS - Build the future OS for your power-saving computer". Kickstarter. https://riscoscloverleaf.com/. "In addition to games in these emulators, a plethora of games have been ported to RISC OS from Linux and other platforms" 
  354. ↑ Williams, Al (2017-05-03). "Your Next Desktop… QNX?". https://hackaday.com/2017/05/03/your-next-desktop-qnx/. "The rest of the adventure went fairly well. He managed to build SDL and port over some games." 
  355. ↑ "SGI - Freeware - Games". http://www.sgi.com/fun/freeware/games.html. 
  356. ↑ "SuperTuxKart IRIX Screenshots". http://www.supertuxkart.de/stkirix.html. 
  357. ↑ Petkauska, Vilius (2021-09-28). "Forget Windows, Apples, and Penguins: enter a world of 'lost' OSs". https://cybernews.com/editorial/forget-windows-apples-and-penguins-enter-a-world-of-lost-oss/. "Impressively, MenuetOS is no thought experiment. To illustrate the point, the operating system ships with shareware versions of legendary games ’Quake’ and ‘Doom’." 
  358. ↑ Zavalishin, Dmitry. "phantomuserland - apps". https://github.com/dzavalishin/phantomuserland/tree/ac2ff0082cb49c98d6f89cd214b5f27fd1550485/phantom/apps. "doom... quake... tetris..." 
  359. ↑ "Port of libSDL to Genode". 2009-01-23. https://genode.org/news/2009. 
  360. ↑ "HelenOS Command Reference". http://www.helenos.org/wiki/UsersGuide/CommandReference. "tetris - Fork of BSD Tetris game" 
  361. ↑ Dominikowski, Tomasz (2006-09-04). "SkyOS Beta Build 6179 Released". https://www.osnews.com/story/15724/skyos-beta-build-6179-released/. "This new build also includes new ports, such as Quake III, Python, SDL with OpenGL support, and much more." 
  362. ↑ Whitham, Jack (2015-07-06). "Porting third-party programs to TempleOS". https://www.jwhitham.org/2015/07/porting-third-party-programs-to-templeos.html. "Without graphics support, the proof-of-concept application is quite limited in what it can do. I therefore chose to port "frotz". This is an interpreter for Z-machine games. The system requirements are minimal, but it can be used to play perhaps thousands of "interactive fiction" (text adventure) games." 
  363. ↑ "Games for SymbOS". http://www.symbos.de/apps.htm?3. 
  364. ↑ "SymbOS - A rather impressive Z80 multitasking operating system gets a new release". 2022-01-07. https://www.indieretronews.com/2022/01/symbos-rather-impressive-z80.html. "You can not only play the latest 8bit version of Doom converted by Prodatron, but many other games such as Sakoban, 2048 and yes even Flappy Bird via this graphically impressive Z80 operating system." 
  365. ↑ Styger, Erich (2018-12-02). "Playing Zork with FreeRTOS on ARM in three different Ways". https://mcuoneclipse.com/2018/12/02/playing-zork-with-freertos-on-arm-in-three-different-ways/. "I started my port of Zork for the NXP FRDM-K64F board using the port from Thomas Shane. You can find my port for the FRDM-K64F on GitHub (links at the end of this article). It should be fairly simple to port it to any other board. The game code has been converted to C using a converter (so the code looks rather ugly with lots of goto statements)." 
  366. ↑ "Open Source Conversion". https://www.lemonamiga.com/games/list.php?list_license=Open%20Source%20Conversion. 
  367. ↑ "Simutrans: Free and Open Source Transport Simulation Game". 13 April 2022. https://blog.desdelinux.net/en/simutrans/. "Simutrans is an open source simulation game under the Artistic License 1.0 for Windows, AmigaOS, BeOS, Mac OS X and Linux that focuses on freight, passenger, mail and energy transport." 
  368. ↑ "Stratagus port for AmigaOS 3 with WarpOS". 2019-02-21. http://aminet.net/package/game/strat/stratagus. 
  369. ↑ "Games". 2009-12-20. https://library.morph.zone/Games. "Many open source games have been ported to MorphOS, including several commercial games whose sources have been released, like id Software masterpieces Wolfenstein 3D, Doom, Doom II, Quake, Quake II and Quake III." 
  370. ↑ "FreeDOS 1.2 Updates - Games". 2022-07-31. https://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/1.2/repos/pkg-html/group-games.html. 
  371. ↑ Smedley, Paul. "Unix Ports for OS/2 & ArcaOS". https://os2ports.smedley.id.au/?page_id=63. 
  372. ↑ "The popular open source Mario-style game arrives in its new version SuperTux 0.6.1". 17 December 2019. https://ubunlog.com/en/el-popular-juego-open-source-al-estilo-mario-llega-a-su-nueva-version-supertux-0-6-1/. "The game was originally released for Linux, Windows, ReactOS, Mac OS X. Versions for other computers include FreeBSD, BeOS, among others." 
  373. ↑ Bergseth (2018). "Haiku operating system: porting applications and creating packages". https://sudonull.com/post/6296-Haiku-operating-system-porting-applications-and-creating-packages. 
  374. ↑ Bergseth, Michal (2016-05-06). "OpenTTD is out for open source BeOS, Haiku". https://distrita.com/openttd-open-source-beos-haiku/. 
  375. ↑ Holwerda, Thom (2007-03-19). "Review: Zeta 1.5". https://www.osnews.com/story/17518/review-zeta-15/. "Magnussoft also included a few emulators (including graphical frontends) in this release, two of which I want to highlight: DOSbox and Qemu. Using the DosBox emulator, I was able to play some old DOS games (Keen!), even though I had to edit the DOSbox config file in order to get some decent performance. The QemuVM frontend had problems in that it would not work correctly when using physical disks instead of image files." 
  376. ↑ Petkauska, Vilius (2021-09-28). "Forget Windows, Apples, and Penguins: enter a world of 'lost' OSs". https://cybernews.com/editorial/forget-windows-apples-and-penguins-enter-a-world-of-lost-oss/. "“Kolibri features a rich set of applications that include a word processor, image viewer, graphical editor, web browser, and well over 30 exciting games,” states the authors of the operating system." 
  377. ↑ "5 alternatives to Microsoft Windows". 2016-05-30. https://economictimes.indiatimes.com/tech-life/5-alternatives-to-microsoft-windows/syllable-desktop/slideshow/52499325.cms. "Some of the other things you can download for free include games, rescue software and a VNC viewer." 
  378. ↑ "Open Source". Hyperion Entertainment. https://www.amigaos.net/license/open-source. 
  379. ↑ "SuperTuxKart, a Mario Kart open source clone.". http://www.dusabledanslherbe.eu/AROSPage/STK.46.html. 
  380. ↑ Rosen, Jeffrey (2010-06-27). "Lugaru comes to the Amiga". http://blog.wolfire.com/2010/06/Lugaru-comes-to-the-Amiga. 
  381. ↑ Wilson, Hamish (2022-09-12). "Building a Retro Linux Gaming Computer - Part 18: Run Away and Join the Circus". https://www.gamingonlinux.com/2022/09/building-a-retro-linux-gaming-computer-part-18-run-away-and-join-the-circus/. Retrieved 2023-03-04. "Bill Kendrick has also created a number of other arcade conversions, edutainment, and experimental software toys which he ports to the widest possible range of platforms, all of which can still be found on the New Breed Software website." 
  382. ↑ Kendrick, Bill. "Welcome". http://www.newbreedsoftware.com/. 
  383. ↑ MrCopilot (19 December 2007). "Free RTS: Open Source Gamer's Guide to Free Real Time Strategy Games". http://voices.yahoo.com/free-rts-open-source-gamers-guide-free-real-time-720261.html. 
  384. ↑ Rankin, Dave (2019-07-18). "5 Open Source First-Person Shooter Video Games". https://www.lifewire.com/open-source-first-person-shooter-video-games-2532903. 
  385. ↑ Dawe, Liam (2020-01-07). "UnCiv, a free and open source remake of Civilization V". https://www.gamingonlinux.com/2020/01/unciv-a-free-and-open-source-remake-of-civilization-v/. 
  386. ↑ Mackey, Dave (15 August 2012). "Crimson Fields Open Source War Strategy Game". https://freewargamer.com/crimson-fields-open-source-war-strategy-game/. 
  387. ↑ "Civil 0.83 review". https://nixbit.com/software/civil-review/. 
  388. ↑ "LGeneral 1.2 Beta12 review". https://nixbit.com/software/lgeneral-1.2-review/. 
  389. ↑ Williams, Mike (2015). "Open General and OpenPanzer are classic turn-based strategy games". https://betanews.com/2014/10/16/open-general-and-openpanzer-are-classic-turn-based-strategy-games/. 
  390. ↑ Martin, Rick (2019-02-07). "'No plan survives contact with the enemy' Open Panzer Computer Game Review". http://armchairgeneral.com/no-plan-survives-contact-with-the-enemy-open-panzer-computer-game-review.htm. 
  391. ↑ "OpenRTS 0.2 review". https://nixbit.com/software/openrts-review/. 
  392. ↑ Paul, John (2019-10-29). "TripleA - An Open Source Strategy Game to Keep You Busy for Hours". https://itsfoss.com/triplea-game-review/. 
  393. ↑ "Mars, Land of No Mercy 0.2.0 review". https://nixbit.com/software/mars--land-of-no-mercy-review/. 
  394. ↑ "Ophiuchus 0.3.2.1 review". https://nixbit.com/software/ophiuchus-review/. 
  395. ↑ Dawe, Liam (2018-12-10). "Mindustry, an open source sandbox Tower Defense game that's a little like Factorio". https://www.gamingonlinux.com/2018/12/mindustry-an-open-source-sandbox-tower-defense-game-thats-a-little-like-factorio/. 
  396. ↑ Dawe, Liam (2015-10-11). "Have You Tried Tanks Of Freedom? An Open Source Strategy Game". https://www.gamingonlinux.com/2015/10/have-you-tried-tanks-of-freedom-an-open-source-strategy-game/. 
  397. ↑ "StormWar 0.15.1 review". https://nixbit.com/software/stormwar-review/. 
  398. ↑ Mackey, Dave (7 August 2012). "Advanced Strategic Command – An Open Source Turn-Based Strategy Game". https://freewargamer.com/advanced-strategic-command-an-open-source-turn-based-strategy-game/. 
  399. ↑ Wen, Howard (15 July 2004). "Stratagus: Open Source Strategy Games". http://www.linuxdevcenter.com/pub/a/linux/2004/07/15/stratagus.html. 
  400. ↑ Kroll, Jason (2000-01-01). "GAMES FOCUS". Linux Journal. http://www.linuxjournal.com/article/3751. Retrieved 2022-07-20. 
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  402. ↑ Kroll, Jason (2000-01-01). "GAMES FOCUS". Linux Journal. http://www.linuxjournal.com/article/3751. Retrieved 2022-07-20. 
  403. ↑ "Dark Oberon". https://download.tuxfamily.org/sdtraces/BottinHTML/Bottin_D-J_files/Dark_Oberon-10740.html. 
  404. ↑ "Boson 0.13 review". https://nixbit.com/software/battles-of-antargis-review/. 
  405. ↑ "Battles of Antargis 0.1.9 review". https://nixbit.com/software/boson-review/. 
  406. ↑ Wilson, Hamish (2023-01-30). "Building a Retro Linux Gaming Computer - Part 23: Ready, Set, Go!". https://www.gamingonlinux.com/2023/01/building-a-retro-linux-gaming-computer-part-23-ready-set-go/. Retrieved 2023-02-02. 
  407. ↑ "Microracers 0.2 review". https://nixbit.com/software/microracers-review/. 
  408. ↑ "Toy Cars 0.3.2 review". https://nixbit.com/software/toy-cars-review/. 
  409. ↑ "Ultimate Stunts 0.6.3.1 review". https://nixbit.com/software/ultimate-stunts-review/. 
  410. ↑ Dawe, Liam (11 May 2014). "Stunt Rally Has A New Version Released With New Tracks, New Graphics & More". https://www.gamingonlinux.com/2014/05/stunt-rally-has-a-new-version-released-with-new-tracks-new-graphics-more/. 
  411. ↑ "Slune 1.0.10 review". https://nixbit.com/software/slune-review/. 
  412. ↑ Dawe, Liam (15 March 2018). "Yorg, a free and open source racing game with some hilarious handling". https://www.gamingonlinux.com/2018/03/yorg-a-free-and-open-source-racing-game-with-some-hilarious-handling/. 
  413. ↑ "Orbit-Hopper 1.13 review". https://nixbit.com/software/orbit-hopper-review/. 
  414. ↑ "ZRacer 1.0 review". https://nixbit.com/software/zracer-review/. 
  415. ↑ Doane, J. Neil (2001-06-06). "Open-Source Gaming for Linux". http://noframes.linuxjournal.com/articles/culture/0026.html/. 
  416. ↑ Manikandan (2022-11-09). "Pixel Wheels Retro Top-Down Race Game". https://connectwww.com/pixel-wheels-retro-top-down-race-game/64979/. 
  417. ↑ Hindman, Beau (2012-06-17). "Rise and Shiny: Illarion". https://www.engadget.com/2012-06-17-rise-and-shiny-illarion.html. 
  418. ↑ "The Mana World Review: Open-Source MMO". 2009-12-24. https://www.onrpg.com/news/the-mana-world-review-open-source-mmo/. 
  419. ↑ Stieben, Danny (2013-10-21). "The Mana World: An Open Source MMORPG For All Platforms". https://www.makeuseof.com/tag/the-mana-world-an-open-source-mmorpg-for-all-platforms/. 
  420. ↑ Rilogator (2018-08-21). "Hero of Allacrost — Developer Interview". https://launchpartygaming.com/features/2018/hero-of-allacrost-developer-interview/. 
  421. ↑ "Valyria Tear – Free 2D JRPG Game with medieval-fantasy theme". 2022-03-11. https://fossgames.com/valyria-tear-2d-jrpg-medieval-fantasy/. 
  422. ↑ "Empty Clip 1.0.2 review". https://nixbit.com/software/empty-clip-review/. 
  423. ↑ Manikandan (2011-11-09). "Summoning Wars – free role-playing game". https://connectwww.com/summoning-wars-free-role-playing-game/1592/. 
  424. ↑ Larabel, Michael (2019-02-16). "GNU's RPG/Adventure Game Updated For SDL2, Defaults To OpenGL Rendering". https://www.phoronix.com/news/GNU-FreeDink-109.6-Released. 
  425. ↑ Sykes, Tom (2012-09-27). "Flare: a free open source RPG with tons of potential". https://www.pcgamer.com/flare-a-free-open-source-rpg-with-tons-of-potential/. 
  426. ↑ Sahdev, Ishaan (2013-05-19). "Heroine Dusk, A Retro Style Dungeon Crawler Right In Your Browser". https://www.siliconera.com/heroine-dusk-a-retro-style-dungeon-crawler-right-in-your-browser/. 
  427. ↑ Dawe, Liam (23 January 2023). "Free open source RPG 'FreedroidRPG' arrives on Steam". https://www.gamingonlinux.com/2023/01/free-open-source-rpg-freedroidrpg-arrives-on-steam/. 
  428. ↑ Dawe, Liam (2021-04-25). "Veloren, an open source RPG inspired by Cube World has a new release". https://www.gamingonlinux.com/2020/05/veloren-an-open-source-rpg-inspired-by-cube-world-has-a-new-release/. 
  429. ↑ Manikandan (2022-08-06). "Tuxemon Open Source Monster Fighting Turn-based RPG Game". https://connectwww.com/tuxemon-open-source-monster-fighting-turn-based-rpg-game/64358/. 
  430. ↑ Toro, Luigys (2021-11-17). "OPMon: A Pokemon-Inspired Adventure Game for Linux". https://blog.desdelinux.net/en/opmon-juego-aventura-linux-inspirado-pokemon/. 
  431. ↑ Payne, Dennis (2018-03-26). "From Godot to RPM". https://fedoramagazine.org/from-godot-to-rpm/. 
  432. ↑ Vincent Craven, Paul (2018-04-24). "How to create a 2D game with Python and the Arcade library". https://opensource.com/article/18/4/easy-2d-game-creation-python-and-arcade. 
  433. ↑ Sheikh, Aqsa (2022-08-02). "21 Python Game Engines in 2023". https://ssiddique.info/python-game-engines.html. 
  434. ↑ Ex, John (2020-10-19). [https:/5/exarhouleasjohn.medium.com/finally-a-ruby-2d-guide-edc76163adfc "Finally a Ruby 2d guide!!!"]. https:/5/exarhouleasjohn.medium.com/finally-a-ruby-2d-guide-edc76163adfc. 
  435. ↑ "The Ruby Unbundled Series: Creating Games with Gosu". 2022-03-18. https://www.engineyard.com/blog/create-ruby-games-using-gosu/. 
  436. ↑ Banerjee, Amarabha (2018-09-22). "Rust as a Game Programming Language: Is it any good?". https://hub.packtpub.com/rust-as-a-game-programming-language-is-it-any-good/. 
  437. ↑ "MiniGDX Kotlin Game Development Framework". 2021-05-14. https://gamefromscratch.com/minigdx-kotlin-game-development-framework/. 
  438. ↑ Smith, James (2021-12-22). "Creating Cool Games With Ebiten". https://golangprojectstructure.com/creating-cool-games-with-ebiten-in-go/. 
  439. ↑ Delgado, Carlos (2020-06-15). "Top 15: Best open source javascript game engines". https://ourcodeworld.com/articles/read/308/top-15-best-open-source-javascript-game-engines. 
  440. ↑ Nair, Nitin (2022). "Collection of Best open-source game engine". https://www.socialmirror.in/public/games/best-open-source-game-engine. 
  441. ↑ Larabel, Michael (2019-06-01). "nCine Is An Interesting Open-Source 2D Game Engine". https://www.phoronix.com/news/nCine-Game-Engine. 
  442. ↑ Famularo, Jessica (2020-04-14). "Zelda's most dedicated fan game developers built an engine anyone can use". https://www.pcgamer.com/zeldas-most-dedicated-fan-game-developers-built-an-engine-anyone-can-use/. 
  443. ↑ Finley, Klint (2022-10-18). "Open source is democratizing video game development". https://github.com/readme/featured/open-source-democratizing-video-games/. 
  444. ↑ Elmenreich, Wilfried (2018-04-27). "How to Game Jam". https://opensource.com/article/17/12/how-to-gaming-jam-development. 
  445. ↑ Sprague, Jared (2017-12-21). "How I designed a game with Scratch". https://opensource.com/article/18/4/designing-game-scratch-open-jam. 
  446. ↑ Shapiro, Phil (2012-10-08). "Scratch, a programming language for kids". https://opensource.com/education/12/10/scratch-programming-language-kids. 
  447. ↑ Guhlin, Miguel (2020-03-12). "Animate Learning with The Wick Editor". Conference for Educational Coaches. https://blog.tcea.org/the-wick-editor/. 
  448. ↑ Dawe, Liam (16 March 2018). "The developer of One Hour One Life on keeping games code & assets open and not launching on Steam". https://www.gamingonlinux.com/2018/03/the-developer-of-one-hour-one-life-on-keeping-games-code-assets-open-and-not-launching-on-steam/. 
  449. ↑ Sogge Heggen, Erlend (2011-02-08). "Open source games: It's a team effort". https://opensource.com/life/11/2/open-source-games-it%E2%80%99s-team-effort. 
  450. ↑ Wilson, Hamish (2022-09-12). "Building a Retro Linux Gaming Computer - Part 18: Run Away and Join the Circus". https://www.gamingonlinux.com/2022/09/building-a-retro-linux-gaming-computer-part-18-run-away-and-join-the-circus/. Retrieved 2023-02-02. "He is most famous for starting work on the platformer SuperTux and crafting the drawing program Tux Paint, helping to popularize Tux as a gaming icon with others in the Tux4Kids initiative, all alongside the work of people like Steve Baker and Ingo Ruhnke." 
  451. ↑ Gasperson, Tina (2004-12-16). "Site review: Linux Game Tome". https://www.linux.com/news/site-review-linux-game-tome/. "LGT sponsors annual awards where members of the site vote for the best free and non-free games of the year. A “miscellaneous” category also singles out the best sounds, emulators, toys, and the most promising Linux game project. The current top free game is Frozen Bubble, and the favorite commercial game is Quake 3 Arena." 
  452. ↑ Bar, Joe (July 21, 2000). "Procrastinate with these Linux games". CNN. http://archives.cnn.com/2000/TECH/computing/12/20/linux.games.idg/index.html. "Freshmeat was the focal point of my search. With over 300 games listed in the X11 section and 200 in the console section, it provided more games than I could possibly evaluate. Naturally, since I want instant gratification of my need for fun, I tended to look only at those with stable releases." 
  453. ↑ Kerabat, Didip (2007-08-27). "Sourceforge: Games: Most downloaded projects…". https://rapd.wordpress.com/2007/08/27/sourceforge-games-most-downloaded-projects/. 
  454. ↑ Bolton, David (2020-07-11). "More open source games on Sourceforge.net". https://learncgames.com/more-open-source-games-on-sourceforge-net/. 
  455. ↑ Ahsan, Zohaib (2020-09-01). "Top 10 Free and Open-Source Games to Play in 2020". https://www.fosslinux.com/43096/free-and-open-source-games-to-play.htm. 
  456. ↑ Saive, Anusha (2021-07-21). "The Best Open Source Games for Linux". https://www.fossmint.com/open-source-games-for-linux/. Retrieved 2023-02-04. 
  457. ↑ Zinoune, M.. "19 Awesome Open Source Games for Linux". https://www.unixmen.com/gaming-on-linux1131-19-awesome-opensource-games-for-linux/. Retrieved 2023-02-04. 
  458. ↑ "Top 10 Open Source Games 2022". 15 December 2021. https://www.opensourcelisting.com/top-10-open-source-games/. Retrieved 2023-02-04. 
  459. ↑ Anderton, Kevin (2021-02-23). "The Problem With Open-Source Game Development". https://www.forbes.com/sites/kevinanderton/2021/02/23/the-problem-with-open-source-game-development-infographic/?sh=7d5da2d96ecc. Retrieved 2023-02-04. 
  460. ↑ Kenlon, Seth (2022-02-26). "My favorite casual games to play on Linux". https://opensource.com/article/22/2/casual-gaming-linux-kde. "These aren't by any means the only two games from the KDE project. There are many others, including card games, tile games, and arcade games. The nice thing about the KDE Games package is that they contain games you're happy to walk away from at a moment's notice, and they only require about a fourth of your attention. I use these to kill time while compiling code. Sometimes I don't get a full game in, but I always appreciate the subtle shift in mental gears." 
  461. ↑ Mills, Ashton (2007-09-17). "Open Source Challenge part 9: Gaming". APC. http://apcmag.com/open_source_challenge_part_9_gaming.htm. Retrieved 2022-07-20. "Thanks to open source, there are actually quite a few fun and free games to download and for which the Ubuntu repositories have a fine selection. From the Applications > Add/Remove menu there's a whole range of games from the basic classics like Nethack and Frozen Bubble through to 3D accelerated gems like Chromium and Neverball. I played all of these. And then I played some more. And then some more. How do they make these so damn addictive? They're not blockbusters, but they beat the pants off the free games bundled in Windows, and will keep you occupied for many hours longer. Good deal for the price point.". 
  462. ↑ Lucas, Michael (2001-03-22). "FreeBSD Gaming". http://www.onlamp.com/pub/a/bsd/2001/03/22/Big_Scary_Daemons.html. "If you're running KDE or Gnome, you already have a few simple games installed. I'm not a fan of either desktop -- both strike me as bloated and obtuse -- but their games packages are a nice way to pick up a dozen simple favorites such as Solitaire, Asteroids, and Tetris." 
  463. ↑ "Solaris 9 GNOME 2". http://toastytech.com/guis/sol93.html. "The desktop includes a number of games that typically come with GNOME." 
  464. ↑ Gagné, Marcel (2008-05-01). "Cooking with Linux - Learning...Disguised". https://www.linuxjournal.com/magazine/cooking-linux-learningdisguised. 
  465. ↑ "Konquest: simple video game to conquer galaxies". 9 May 2021. https://www.linuxadictos.com/en/konquest-simple-videojuego-conquista-galaxias.html. 
  466. ↑ "Creating board games in Haskell in 100 lines of code". 2013-03-19. https://keera.co.uk/posts/2013/03/19/creating-board-games-in-haskell/. 
  467. ↑ Vladimirovich Strakhov, Pavel (2018-04-30). Game Programming using Qt 5 Beginner's Guide. Packt Publishing. ISBN 978-1788390651. https://books.google.com/books?id=kPBZDwAAQBAJ. 
  468. ↑ "Qt Based Games". https://wiki.qt.io/Qt_Based_Games. 
  469. ↑ Bodnar, Jan (2007). "The tetris game in wxWidgets". https://brucey.net/programming/blitz/tutorials/prog/en/thetetrisgame.html. 
  470. ↑ Dhanwani, Amit (2023-12-10). "How to Create a Color Game in Python". https://www.codingal.com/coding-for-kids/blog/create-a-color-game-in-python/. 
  471. ↑ "Listings in Wiki/Software/Games". https://www.fltk.org/links.php?LA+P149+Q. 
  472. ↑ "Projects". https://www.pygame.org/tags/all. 
  473. ↑ "Category:Games". https://love2d.org/wiki/Category:Games. 
  474. ↑ "New Games". https://ioquake3.org/extras/derivative-games/. 
  475. ↑ Carollo, David (2015-10-02). "A look at Battle for Wesnoth's current game development strategy". https://opensource.com/life/15/10/interview-battle-for-wesnoth. 
  476. ↑ Berg, Alan; Berg, Nelson (2006-04-12). "Battle for Wesnoth". Free Software Magazine (11). http://www.freesoftwaremagazine.com/articles/wesnoth_interview_player. Retrieved 2022-07-20. 
  477. ↑ "People at Gna!: Eric S. Raymond Profile". https://gna.org/users/esr. 
  478. ↑ "People at Gna!: Rusty Russell Profile". https://gna.org/users/rusty. 
  479. ↑ Russell, Rusty (16 January 2007). "Wesnoth for Kernel Hackers (and everyone else)". linux.conf.au 2007. Sydney. http://mirror.linux.org.au/linux.conf.au/2007/video/tuesday/tuesday_1450_gaming.ogg. Retrieved 2022-07-20. 
  480. ↑ JackS (2005-08-01). "Please Only Put "Authoritative" Data into the Wiki". https://forums.vega-strike.org/viewtopic.php?f=11&t=5045. "If one wishes to contribute, or is dismayed at the absence of any piece or pieces of data, one should ask, query, inquire - that is to say, communicate - via appropriate channels. We have a wiki because we are engaged in a collaborative attempt at documenting and presenting data that has been generated concerning the VS universe, and because we, as a community, would like to think we're up to developing a culture where that is a pleasant venture." 
  481. ↑ Saring, Jonathan (3 April 2017). "New data on open source: Reinventing the wheel every day". https://readwrite.com/2017/04/03/new-data-open-source-reinventing-wheel-every-day-dl1/. 
  482. ↑ Dao, Han (2007-07-14). "Strategies for Expanding Free Gaming". http://libertygaming.blogspot.com/2007/07/strategies-for-expanding-free-gaming.html. 
  483. ↑ "Mission statement or 'Free games development - you're doing it wrong!'". 2009-01-19. http://tryglaw.eu/m64blog/?p=8. 
  484. ↑ Reed, Michael (June 10, 2010). "Parallel Realities: Retro-themed Linux games". Linux Journal. http://www.linuxjournal.com/content/parallel-realities-retro-themed-linux-games. Retrieved 2022-07-20. 
  485. ↑ "Highly Addictive Puzzle/Arcade Games for Linux". 2008-05-02. https://www.junauza.com/2008/05/highly-addictive-puzzlearcade-games-for.html. "Work on [Pingus] began in 1998. This game is the first Game of the Month by The Linux Game Tome, which has revamped such games as SuperTux, Super TuxKart, and Lincity. The first post-GotM version 0.6 was released in 2003 for Linux featuring new levels and a level editor." 
  486. ↑ Wilson, Hamish (2023-01-16). "Building a Retro Linux Gaming Computer - Part 21: Fluffy Bunnies". https://www.gamingonlinux.com/2023/01/building-a-retro-linux-gaming-computer-part-21-fluffy-bunnies/. Retrieved 2023-02-02. 
  487. ↑ Payne, Dennis. "Free Software Game Restoration". https://media.libreplanet.org/u/libreplanet/m/free-software-game-restoration/. 
  488. ↑ Payne, Dennis (2022-03-19). "Free Software Game Restoration II". https://media.libreplanet.org/u/libreplanet/m/free-software-game-restoration-ii/. 
  489. ↑ Dawe, Liam (15 September 2020). "A cancelled old RTS named 'Hard Vacuum' gets revived with OpenRA". https://www.gamingonlinux.com/2020/09/a-cancelled-old-rts-named-hard-vacuum-gets-revived-with-openra. 
  490. ↑ Diehl, Mike (2009-10-21). "Teaching with Tux". Linux Journal. http://www.linuxjournal.com/content/teaching-tux. Retrieved 2022-07-20. 
  491. ↑ Diehl, Mike (2009-11-10). "Learning with Gcompris". Linux Journal. https://www.linuxjournal.com/content/learning-gcompris. Retrieved 2023-02-10. 
  492. ↑ Diehl, Mike (2009-12-30). "Learning is Childsplay". Linux Journal. https://www.linuxjournal.com/content/learning-childsplay. Retrieved 2023-02-12. 
  493. ↑ Rodriguez, Juan (2012-04-27). "The Liberated Pixel Cup: proving the potential for free culture and free software game development". https://opensource.com/life/12/4/liberated-pixel-cup-proving-potential-free-culture-and-free-software-game-development. Retrieved 2023-02-04. 
  494. ↑ Hancock, Terry (2009-09-16). "Free-licensed art for free software games: OpenGameArt.org". http://www.freesoftwaremagazine.com/articles/free_licensed_art_free_software_games_opengameart_org. 
  495. ↑ Whitehead, Jim (2009-10-29). "Landscape of open source games". https://eis-blog.soe.ucsc.edu/2009/10/landscape-of-open-source-games/. "A disappointment was the state of open content sharing. While some sites, like OpenGameArt and New Grounds provide tagging with a Creative Commons license, far more common are sites like Google’s 3D Warehouse that have site-specific terms of use, and provide no ability for artists to indicate they are willing to share their work via Creative Commons or an open source license." 
  496. ↑ Davis, Hunter (2015-01-15). "Remixing open source games with Creative Commons content". https://opensource.com/life/15/1/remixing-open-source-games-creative-commons-content. Retrieved 2023-02-04. 
  497. ↑ Harmon, Elliot (2014-07-24). "Download Nick Liow's Open Game Art Bundle". https://opensource.com/life/13/7/download-open-game-art-bundle. 
  498. ↑ Sogge Heggen, Erlend (2011-02-08). "Open source games: It's a team effort". https://opensource.com/life/11/2/open-source-games-it%E2%80%99s-team-effort. Retrieved 2023-02-04. 
  499. ↑ Behrenshausen, Bryan (2014-07-21). "What is open gaming?". https://opensource.com/resources/what-open-gaming. Retrieved 2023-02-04. 
  500. ↑ Banks, Hunter (2015-11-11). "The State of Open Source Gaming on Linux". https://fossforce.com/2015/11/the-state-of-open-source-gaming-on-linux/. Retrieved 2023-01-29. 
  501. ↑ Hasan, Mehedi (2022-07-13). "The 20 Best Linux Gaming Websites That Every Gamer Must Know". https://www.ubuntupit.com/best-linux-gaming-websites-that-every-gamer-must-know/. Retrieved 2023-02-02. 
  502. ↑ Reilly, Lee (25 August 2021). "30 free and open source Linux games – part 1". https://github.blog/2021-08-25-30-free-and-open-source-linux-games-part-1/. 
  503. ↑ Reilly, Lee (26 August 2021). "30 free and open source Linux games – part 2". https://github.blog/2021-08-26-30-free-and-open-source-linux-games-part-2/. 
  504. ↑ Reilly, Lee (27 August 2021). "30 free and open source Linux games – part 3". https://github.blog/2021-08-27-30-free-and-open-source-linux-games-part-3/. 
  505. ↑ Dawe, Liam (2015-12-15). "The Itch store now has an open source and multiplatform store application". https://www.gamingonlinux.com/2015/12/the-itch-store-now-has-an-open-source-and-multiplatform-store-application/. Retrieved 2023-01-29. 
  506. ↑ Kerr, Chris (2016-01-13). "Indie marketplace Game Jolt releases open source desktop client". https://www.gamedeveloper.com/console/indie-marketplace-game-jolt-releases-open-source-desktop-client. Retrieved 2023-02-03. 
  507. ↑ Larabel, Michael. "Desura Game Client Is Now Open-Source". https://www.phoronix.com/news/MTA0NjI. 
  508. ↑ Dawe, Liam (2 May 2018). "The open source fantasy turn-based strategy game 'Battle for Wesnoth' is now on Steam". https://www.gamingonlinux.com/2018/05/the-open-source-fantasy-turn-based-strategy-game-battle-for-wesnoth-is-now-on-steam/. 
  509. ↑ Dawe, Liam (13 January 2022). "SuperTux released free on Steam, an open source classic". https://www.gamingonlinux.com/2022/01/supertux-released-free-on-steam-an-open-source-classic/. 
  510. ↑ Dawe, Liam (29 March 2016). "Wyrmsun, the retro-themed & open source RTS is now free on Steam". https://www.gamingonlinux.com/2016/03/wyrmsun-the-retro-themed-open-source-rts-is-now-free-on-steam. 

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