Software:List of game engine recreations

From HandWiki
Short description: none


Game engine recreation is a type of video game engine remastering process wherein a new game engine is written from scratch as a clone of the original with the full ability to read the original game's data files. The new engine reads the old engine's files and, in theory, loads and understands its assets in a way that is indistinguishable from the original. The result of a proper engine clone is often the ability to play a game on modern systems that the old game could no longer run on. It also opens the possibility of community collaboration, as many engine remake projects tend to be open source.

In most cases a clone is made in part by studying and reverse engineering the original executable, but occasionally, as was the case with some of the engines in ScummVM, the original developers have helped the projects by supplying the original source code—those are so-called source ports.

Video game Name of game engine recreation Status License Refs
Development Playable
7th Guest ScummVM Active Yes GPLv3+
v64tng Active MIT License [1]
Abuse Abuse Completed Yes GPLv2, WTFPLv2
Age of Empires Chariot Inactive MIT License [2]
Age of Empires Free Software Remake Active Apache-2.0 [3][4]
Age of Empires II openage Active GPLv3+ [5]
freeaoe ? Yes GPLv3+ [6]
Aliens versus Predator (1999) avp ? ? ?
avp_GLES ? ? ?
Alone in the Dark Free in the Dark Active ? GPLv2 [7][8]
Alone in the Dark 2
Alone in the Dark 3
Jack in the Dark
Ambermoon Ambermoon.net Active Yes GPL [9]
Another World New RAW Inactive ? GPLv2+
raw (Rewritten engine for Another World) Inactive ? GPLv2+ [10]
rawgl Inactive ? ?
Software:Arcanum: Of Steamworks and Magick Obscura OpenArcanum ? ? ?
Arx Fatalis Arx Libertatis Active Yes GPLv3+ [11][12][13]
Bermuda Syndrome Bermuda Syndrome engine reimplementation Inactive ? ?
Betrayal at Krondor xBaK Inactive ?
Blade Runner ScummVM Active Yes GPLv3+ [14][15]
Software:Blood Omen: Legacy of Kain Blood Omnicide ? ? ?
BVE Trainsim openBVE Completed Yes Public-domain
Caesar III CaesarIA Inactive ? GPLv3+ [16]
Julius Completed Yes AGPLv3 [17]
Cannon Fodder Open Fodder Completed Yes GPLv3+
Cannon Fodder 2
Carmageddon dethrace Active Yes GPLv3+ [18]
The Castles of Dr. Creep Castles of Dr. Creep Completed Yes GPLv3+
Catacomb 3-D CatacombGL Active Yes GPL [19]
Catacomb Abyss
Catacomb Armageddon
Catacomb Apocalypse
Cave Story NXEngine Inactive Yes GPL
doukutsu-rs Active Yes MIT
Chaos;Head FGRE Inactive ? GPLv3+
Steins;Gate
Software:Chasm: The Rift PanzerChasm Inactive Yes GPLv3 [20]
Clannad xclannad ? ? ?
Command & Conquer Tiberian Dawn FreeCNC Inactive GPLv2 [21]
OpenRA Active Yes GPLv3 [22][23]
Vanilla Conquer Active Yes GPLv3[24] [25]
Software:Command & Conquer: Generals – Zero Hour Thyme Active GPL [26]
OpenSAGE Active LGPL [27]
Software:Command & Conquer: Red Alert FreeRA Inactive GPLv2 [28]
OpenRedAlert

based on FreeCNC and FreeRA

Inactive GPLv2 [29]
Red Alert++ / Chronoshift Inactive GPLv2 [30][31][32][33]
OpenRA Active Yes GPLv3 [22]
Vanilla Conquer Active Yes GPLv3[24] [25]
Commander Keen series Keen Dreams Inactive ? GPL
Commander Keen in Goodbye, Galaxy Omnispeak Inactive ? GPL
Commander Keen in Keen Dreams Commander Genius Active ? GPL
Reflection Keen Active ? GPL
Creatures openc2e Active ? LGPL [34]
Chris Sawyer's Locomotion OpenLoco Active Yes MIT License [35]
Curse of the Azure Bonds coab (Curse of the Azure Bonds) Inactive Yes New BSD
Doom engine games List of Doom ports Completed Yes GPLv2+, Doom Source License
The Daedalus Encounter OpenDaed Inactive ? GPLv3+
Death Rally DreeRally Active ? Public-domain
dRally Active ? ?
Desert Strike: Return to the Gulf OpenStrike Inactive ? GPL
Jungle Strike: The Sequel to Desert Strike
Diablo Freeablo Inactive Yes GPL [36][37]
Devilution Active Yes Sustainable Use License [38]
DevilutionX Active Yes Sustainable Use License [39]
djavul Inactive ? Unlicense
Die by the Sword Die by the Sword – Xtended ? ? ?
Dink Smallwood GNU FreeDink Completed Yes GPL
Dragon Age II xoreos
(Bioware's Aurora engine and its derivatives)
Active ? GPL [40][41]
Software:Dragon Age: Origins ?
Jade Empire ?
Neverwinter Nights ?
Neverwinter Nights 2 ?
Software:Sonic Chronicles: The Dark Brotherhood ?
The Witcher ?
Star Wars: Knights of the Old Republic reone Active ? GPL [42]
xoreos Active ? GPL [40][41]
KotOR.js Active Yes GPLv3+
Star Wars Knights of the Old Republic II: The Sith Lords reone Active ? GPL [42]
xoreos Active ? GPL [40][41]
KotOR.js Active Yes GPLv3+
Dragon Wars OpenDW Active ? ISC license [43]
Driver 2 REDRIVER2 Completed Yes MIT License [44][45]
Duke Nukem FreeNukum Active ? AGPLv3+ [46][47]
ReDuke Inactive ? ?
Duke Nukem II Rigel Engine Active ? GPL
Duke Nukem 3D EDuke32 Active Yes GPL [48][49]
Dune II DuneLegacy Active ? GPL [50]
OpenDUNE Active ? GPL
Dune Dynasty Inactive ? GPL
Dungeon Keeper KeeperFX Active Yes GPLv2+
Dungeon Keeper 2 OpenKeeper Active ? GPLv3+
GLKeeper Inactive MIT License
The Elder Scrolls I: Arena OpenTESArena Active Yes MIT License [51]
Software:The Elder Scrolls II: Daggerfall XL Engine (DaggerXL) Inactive ? MIT License [52][53][54][55][56]
Daggerfall Unity Active Yes MIT License [57][58][59]
Software:The Elder Scrolls III: Morrowind Project Aedra Inactive ? as-is [60]
OpenMW Active Yes GPLv3+
The Crystal Scrolls Inactive ? LGPL
ELF Corporation ANISE ? ? ? [61]
Elite Elite – The New Kind ? ? ?
Elite : Harmless Active ? CC BY-NC-SA 4.0
Escape from Colditz Colditz Escape Completed Yes ?
EverQuest LanternEQ Active Yes ?
Eye of the Beholder ScummVM Kyra engine Yes Yes Yes
Eye of the Beholder II ScummVM Kyra engine Yes Yes Yes
ArcEngine Inactive ? ?
Spectalum Inactive Yes GPL-2.0 [62]
F-1 Spirit F1-Spirit Remake ? ? ? [63]
Fade to Black f2bgl Inactive ? ?
Fallout Fallout Community Edition Active Yes Sustainable Use License [64]
Fallout Reference Edition Active Yes Sustainable Use License [65]
Fallout 2 Falltergeist Inactive ? GPLv3+ [66]
DarkFO Inactive Apache 2.0 [67]
jsFO Inactive Apache 2.0 [68]
Fallout 2 Reference Edition Active Yes Sustainable Use License [69]
Fallout 2 Community Edition Active Yes Sustainable Use License [70]
Vault13 Inactive GPLv3+ [71]
Final Fantasy VII Q-Gears Inactive ? GPLv2
Final Fantasy VIII OpenVIII Active ? MIT License
Fish Fillets Fish Fillets NG Completed Yes GPL
Flashback: The Quest for Identity REminiscence Inactive ? GPL-3.0+ [72]
Freelancer Librelancer Active ? MIT License
Finance:Frontier: Elite II Frontier 1337 ? ? ?
GLFrontier ? ? ?
Software:Frontier: First Encounters jjFFE ? ? ?
GameMaker "Classic" (≤8.1) games OpenGMK 2024-05-09 ? GPL-2.0 [73]
Game Creator 2024-02-26 ? GPL-3.0 [74]
GameMaker Studio 1 games OpenGML 2023-04-24 ? MIT [75]
DejaVu-llvm 2015-09-06 ? NCSA [76]
DejaVu 2023-07-30 ? MIT, Apache-2.0 [77]
Acolyte 2014-02-07, officially dead ? BSD-3-Clause [78]
Gothic REGoth Inactive ? GPL-3.0
REGoth-bs Active ? MIT License
Gothic II REGoth Inactive ? GPL-3.0
REGoth-bs Active ? MIT License
OpenGothic Active Yes MIT License [79]
Grand Theft Auto OpenGTA Inactive non-commercial restrictions [80]
Grand Theft Auto 2 GTA2NET Inactive MIT [81]
Grand Theft Auto 3 re3 Active Yes ? [82]
Software:Grand Theft Auto: Vice City Active Yes ? [82]
The Great Escape The Great Escape Active Yes ?
The Great Giana Sisters OpenGGS Active ? GPL [83]
Heart of Darkness HODe Completed Yes ? [84][85]
Heart of the Alien Heart of The Alien Redux Inactive ? GPL
Heroes of Might and Magic II fheroes2 Active Yes GPLv2 [86]
Heroes of Might and Magic III VCMI project Active Yes GPLv2 [87]
Software:Igor: Objective Uikokahonia Igor ? ? ?
Imperium Galactica OpenIG Active Yes LGPL-3.0 [88]
Software:Jak and Daxter: The Precursor Legacy OpenGOAL Active Yes ISC license [89]
Jak 2 Active ISC license
Jak 3 Active ISC license
Jazz Jackrabbit OpenJazz Active Yes GPLv2 [90]
Software:Star Wars: Dark Forces The Force Engine Active Yes GPLv2 [91]
Outlaws Active GPLv2
Software:Star Wars Jedi Knight: Dark Forces II OpenJKDF2 Active Yes Custom [92]
Software:Star Wars Jedi Knight II: Jedi Outcast OpenJK Active Yes GPLv2 [93]
Organization:Star Wars Jedi Knight: Jedi Academy Active Yes GPLv2
J.R.R. Tolkien's The Lord of the Rings, Vol. I Lord of the Rings Engine Active Yes LGPL [94]
KKnD: Krush, Kill 'n Destroy OpenRA Inactive Yes GPLv3 [95]
OpenKKND Inactive ? ? [96]
Knytt Stories knyttds ? ? ? [97]
The Legend of Zelda: A Link to the Past Zelda3 Active Yes MIT License
Software:The Legend of Zelda: Ocarina of Time Ship of Harkinian Active Yes ? [98]
Software:The Legend of Zelda: Majora's Mask 2 Ship 2 Harkinian Active ? [99]
Lemmings (Windows version) Lemmini Inactive ? ?
Little Big Adventure TwinEngine Inactive ? GPL
ScummVM Active Yes GPLv3+
Little Big Adventure 2 LBA 2 Engine Inactive ? ?
LBA2 Remake Active ? MIT License
Little Fighter 2 Project-F Inactive Yes GPL [100]
Magic Carpet remc1 Inactive ? GPLv3
Magic Carpet: Hidden Worlds remc1hw Inactive ? GPLv3
Magic Carpet 2 remc2 Inactive ? GPLv3
Marathon Trilogy Aleph One Completed Yes GPL
Marble Blast Ultra OpenMBU Beta Yes MIT License
Master of Orion 1oom Inactive Yes GPL [101]
Software:Master of Orion II: Battle at Antares 2ooM Inactive ? GPL
OpenMOO2 Inactive ? GPL
Software:Medal of Honor: Allied Assault OpenMoHAA Active Yes GPLv2 [102]
Mercenary (including Damocles and The Dion Crisis) MDDClone Completed Yes ?
Metroid Prime Metaforce Inactive Yes MIT License [103]
Software:Metroid Prime 2: Echoes
Software:Metroid Prime 3: Corruption
Midnight Club II OpenMC2 Active ? GPL
The Legend of Sword and Fairy (also known as PAL) SDLPAL Active ? ?
Magnetic Scrolls adventure games (e.g. The Pawn, Guild of Thieves) Magnetic ? ? ?
ScummVM Active Yes GPL
Software:Might and Magic IV: Clouds of Xeen ScummVM Active Yes GPL
OpenXeen Inactive ? GPL
Software:Might and Magic V: Darkside of Xeen ScummVM Active Yes GPL
OpenXeen Inactive ? GPL
Might and Magic VI: The Mandate of Heaven OpenEnroth Active ? GPL
Might and Magic VII: For Blood and Honor Active Yes GPL
Might and Magic VIII: Day of the Destroyer Active ? GPL
Need For Speed OpenNFS1 Inactive ? ? [104]
Software:Need for Speed III: Hot Pursuit OpenNFS Active ? MIT License [105]
Need For Speed II Need For Speed II SE Active ? MIT License [106]
Nicky Boom Nicky Inactive Yes ?
Nuclear War Netnuclear ? Yes ?
Software:Oddworld: Abe's Exoddus R.E.L.I.V.E. Active Yes GPLv2+
Software:Oddworld: Abe's Oddysee
One Must Fall 2097 Openomf Active Yes MIT License [107]
Outcast OpenOutcast Inactive ? ?
Outpost OutpostHD Active ? Permissive license[108] / proprietary[109]
Out Run cannonball Active Yes GPL-like license with non-commercial clause[110] [111]
Panzer General II Open General Active Yes BSD
Perfect Dark perfect_dark Active Yes MIT [112]
Pharaoh Akhenaten Active Yes AGPLv3 [113]
Ozymandias Inactive Yes AGPLv3 [114]
Prince of Persia FreePrince Inactive ? GPLv2+
SDLPoP Active ? GPL
MININIM Inactive ? GPL [115]
Redneck Rampage Rednukem Active Yes GPLv2, BUILD engine license
Redneck Rampage Rides Again Yes
Rick Dangerous xrick Inactive Yes ? [116]
RollerCoaster Tycoon FreeRCT Active ? GPLv2
RollerCoaster Tycoon 2 OpenRCT2 Active Yes GPLv3
RuneScape OpenRSC Active Yes AGPLv3 [117]
Lost City/2004Scape Active Yes MIT License [118]
Sonic CD (2011) Sonic-CD-11-Decompilation Active Yes
Sonic the Hedgehog (2013) Sonic-1-2-2013-Decompilation Active Yes
Sonic the Hedgehog 2 (2013) Active Yes
Sonic Mania Sonic-Mania-Decompilation Active Yes
RPG Maker 2000 EasyRPG Active Yes GPL
RPG Maker 2003 Yes
RPG Maker XP aka Ruby Game Scripting System (RGSS) mkxp, mkxp-z Active Yes GPL [119][120]
RPG Maker VX (RGSS2) Yes
RPG Maker VX Ace (RGSS3) Yes
The Settlers Freeserf Active ? GPL
The Settlers II Return to the Roots (RttR) Active Yes GPL
Silencer zSilencer Completed Yes ?
The Sims Simitone Active ? Mozilla Public License [121]
The Sims Online FreeSO Active Yes Mozilla Public License
Project Dollhouse Inactive ? ?
SimCity 2000 OpenSC2K Inactive GPL [122][123]
SimTower OpenSkyscraper Inactive ? GPL [124]
StarCraft SCSharp Inactive ? ? [125]
StarGus with Stratagus Active GPL-2.0
Strike Commander libRealSpace Inactive ? ?
Stronghold Sourcehold Active ? MIT License [126]
Castlekeep ? ? GPL
Dune 2000
Tiberian Sun
Red Alert 2
OpenRA Active Yes GPLv3 [22][127][128]
SubSpace Continuum Completed Yes ? [129]
Super Mario 64 Super Mario 64 Port Active Yes GPL
Super Mario World smw Active Yes MIT License[130]
Super Metroid sm Active Yes MIT License[131]
Syndicate FreeSynd Inactive ? GPL
System Shock Shockolate Active Yes GPL [132]
TSSHP (The System Shock Hack Project) Inactive ? BSD
Software:S.T.A.L.K.E.R.: Shadow of Chernobyl OpenXRay (in fact not a reimpl, but just a release) Active non-commercial[133]
Software:S.T.A.L.K.E.R.: Clear Sky Active
Software:S.T.A.L.K.E.R.: Call of Pripyat Active Yes
The Temple of Elemental Evil Temple+ Active Yes ? [134]
Theme Hospital CorsixTH Active Yes MIT License [135][136]
Titus the Fox OpenTitus Inactive Yes GPL [137]
Tomb Raider classic series TRX – Tomb Raider I & II: Community Edition Active Yes GPLv3 [138]
CroftEngine Active Yes LGPL [139]
OpenRaider Inactive ? GPL-2.0
OpenTomb Inactive Yes LGPL [140]
OpenLara Active Yes BSD [141]
Tomb Raider 5 Decompilation Project Active ? ? [142]
TombEngine Active Yes MIT License [143]
Total Annihilation Spring Engine (with eXtended Total Annihilation, Balanced Annihilation or Beyond All Reason) Active Yes GPL [144][145][146]
Total Annihilation 3D Completed ? ?
Touhou 6 ~ The Embodiment of Scarlet Devil PyTouhou ? Yes GPL
Transport Tycoon Deluxe OpenTTD (reverse engineered) Active Yes GPL
Tyrian OpenTyrian Active Yes GPL-2.0 [147]
freescape engine used for games like Driller and Castle Master Phantasma ? ? ?
Dungeon Master, Chaos Strikes Back, and Dungeon Master II Chaos Strikes Back for Windows
(and Linux, MacOS X, Pocket PC) (reverse engineered)
Completed Yes ?
RTC ? Yes ?
GoldSrc (Half-Life 1) games Xash3D FWGS Active Yes GPLv3
Key dating sim games Waffle ? ? ?
adventure games created with World Builder ScummVM (WAGE) ? ? GPL [148][149]
Key ren'ai games using the AVG32 engine, especially Kanon, Air and Clannad xkanon Inactive ? GPL
RLVM Active Yes GPL
Adventure Game Interpreter (AGI) engine by Sierra adventure games NAGI ? ? ?
Adventure Game Interpreter (AGI) engine, Cinématique, Gob, Groovie, Kyra ? Yes GPL [150]
Multimedia Applications Development Environment (MADE engine) ? Yes GPL [150]
SCUMM ? Yes GPL [150]
Sierra's Creative Interpreter (SCI) ? Yes GPL [150]
M4, Parallaction, and others ? Yes GPL [150]
Grim Fandango (GrimE-based) ResidualVM

ScummVM [2]

? Yes GPL [151]
Escape from Monkey Island ? Yes GPL [151]
Software:Myst III: Exile ? Yes GPL [151]
The Longest Journey Active Yes GPL [152]
Baldur's Gate (Infinity Engine-based) GemRB Active Yes GPL [153]
Software:Baldur's Gate II: Shadows of Amn Yes
Icewind Dale Yes
Icewind Dale II
Software:Planescape: Torment Yes
Plants vs. Zombies PlantsVsZombies.NET Active Yes MIT License [154]
System Shock 2 OpenDarkEngine (i.e., not The Dark Mod), NewDark Inactive Yes GPL [155][156]
Software:Thief: The Dark Project (Dark Engine-based) Inactive Yes GPL
Thief II: The Metal Age Inactive Yes GPL
Software:UFO: Enemy Unknown OpenXcom Completed Yes GPL [157]
Software:X-COM: Terror from the Deep
Software:X-COM: Apocalypse OpenApoc Active Yes MIT License [158][159]
Software:Ultima IV: Quest of the Avatar xu4 Inactive Yes GPL
ScummVM Active Yes GPL
Software:Ultima VI: The False Prophet Nuvie Inactive Yes GPL
ScummVM Active Yes GPL
Software:Ultima VII: The Black Gate Exult Active Yes GPL [160]
Software:Ultima VII Part Two: Serpent Isle
Software:Ultima VIII: Pagan Pentagram Inactive Yes GPL
ScummVM Active Yes GPL
Ultima Online CrossUO Active ? GPL
Ultima Online on Freeshards Iris2 ? ? ?
Software:Ultima Underworld: The Stygian Abyss Underworld Adventures Active ? GPL
Unreal Surreal Engine Active Yes zlib License [161]
Unreal Tournament
Urban Assault UA_source Active Yes GPL [162]
Software:Warcraft: Orcs & Humans Alpha-WC1 ? ? ?
War1gus with Stratagus Active Yes GPL-2.0-only
Software:Warcraft II: Tides of Darkness Wargus with Stratagus Active Yes GPL-2.0-only
Wizardry p-interp ? ? ?
Z-machine Frotz, ZIP, JZIP, Zip 2000, Zip Infinity and Nitfol ? ? ?
ScummVM Active Yes GPL
Zak McKracken and the Alien Mindbenders ScummVM Active Yes GPL
Zork Nemesis ScummVM Active Yes GPL
Software:Zork: Grand Inquisitor
Video game Name of game engine recreation Development Playable License Refs
Status

See also

References

  1. "v64tng". 2024-12-14. https://github.com/mattseabrook/v64tng. 
  2. "Chariot". 3 November 2021. https://github.com/ChariotEngine/Chariot. 
  3. "aoe/LEGAL at master · FolkertVanVerseveld/aoe · GitHub". https://github.com/FolkertVanVerseveld/aoe/blob/master/LICENSE. 
  4. "aoe". 2024-06-11. https://github.com/FolkertVanVerseveld/aoe. 
  5. "openage README". 1 September 2020. https://github.com/SFTtech/openage/blob/master/README.md#license. 
  6. "freeaoe". 3 November 2021. https://github.com/sandsmark/freeaoe. 
  7. "[Fitd-cvs fitd AUTHORS,NONE,1.1 COPYING,NONE,1.1 [..]"]. 6 August 2004. https://sourceforge.net/p/fitd/mailman/message/906398/. 
  8. "Yaz0r/FITD". https://github.com/yaz0r/FITD. 
  9. "Ambermoon.net". https://github.com/Pyrdacor/Ambermoon.net. 
  10. "raw - Rewritten engine for Another World/Out of this World". 21 April 2004. License found in: release 0.1.0 (2004/04/21) - raw-0.1.0.tar.bz2 - source code. http://membres.lycos.fr/cyxdown/raw/. 
  11. "ArxLibertatis/COPYING at master · arx/ArxLibertatis · GitHub". https://github.com/arx/ArxLibertatis/blob/master/COPYING. 
  12. "Arx Libertatis - a cross-platform port of Arx Fatalis". https://arx-libertatis.org/. 
  13. "arx/ArxLibertatis". 6 November 2021. https://github.com/arx/ArxLibertatis. 
  14. "ScummVM 2.1.0 "Electric Sheep" has been produced.". 2011-11-11. https://scummvm.org/news/20191013/. 
  15. "Blade Runner is now easily playable in ScummVM". 2019-11-17. https://www.rockpapershotgun.com/blade-runner-is-now-easily-playable-in-scummvm. 
  16. "caesaria-game". https://github.com/dalerank/caesaria-game. 
  17. Julius on GitHub (6 March 2019)
  18. "Dethrace-labs/Dethrace". https://github.com/dethrace-labs/dethrace. 
  19. ArnoAnsems (2023-04-26). "CatacombGL". https://github.com/ArnoAnsems/CatacombGL. 
  20. "Panzerschrek/Chasm-Reverse". 2 November 2021. https://github.com/Panzerschrek/Chasm-Reverse. 
  21. "FreeCNC". 30 January 2014. https://sourceforge.net/projects/freecnc/. 
  22. 22.0 22.1 22.2 "Legal | OpenRA". https://openra.net/. 
  23. "OpenRA". https://www.openra.net/. 
  24. 24.0 24.1 "Error: no |title= specified when using {{Cite web}}". https://raw.githubusercontent.com/TheAssemblyArmada/Vanilla-Conquer/vanilla/License.txt. 
  25. 25.0 25.1 "TheAssemblyArmada/Vanilla-Conquer". https://github.com/TheAssemblyArmada/Vanilla-Conquer. 
  26. "TheAssemblyArmada/Thyme". 2 November 2021. https://github.com/TheAssemblyArmada/Thyme. 
  27. "Free, open source re-implementation of SAGE". GitHub. https://github.com/OpenSAGE/OpenSAGE. 
  28. "FreeRA". 19 April 2013. https://sourceforge.net/projects/freera/. 
  29. "OpenRedAlert". 14 October 2015. https://sourceforge.net/projects/openredalert/. 
  30. "TheAssemblyArmada/Chronoshift". 26 October 2021. https://github.com/TheAssemblyArmada/Chronoshift. 
  31. "Chronoshift (a C&C: Red Alert 1 reimplementation project) is now open source!". 2 November 2018. https://old.reddit.com/r/gamedev/comments/9tjhsw/chronoshift_a_cc_red_alert_1_reimplementation/. 
  32. "RedAlert++". http://redalertpp.org/. "An open source re-implementation of the C&C Red Alert engine. Written from scratch in C++, using SDL2 and OpenAL" 
  33. "Red Alert Plus Plus". https://www.facebook.com/RedAlertPlusPlus/. "An open source re-implementation of the C&C Red Alert engine. Written from scratch in C++" 
  34. openc2e on GitHub
  35. "OpenLoco". https://github.com/OpenLoco/OpenLoco. 
  36. "freeablo". https://freeablo.org/. 
  37. "Archiving project". https://github.com/wheybags/freeablo/issues/507. 
  38. "Devilution". November 2021. https://github.com/diasurgical/devilution/blob/6b7135cec37e9cf0f6740d7e1a1ec880f89e73ff/LICENSE.md. 
  39. "DevilutionX/README.md at master · diasurgical/DevilutionX". https://github.com/diasurgical/devilutionX/blob/0aa7e998193f957f11e584fd49c81fa8a03c3803/LICENSE.md. 
  40. 40.0 40.1 40.2 "xoreos". https://xoreos.org/. 
  41. 41.0 41.1 41.2 "GitHub - xoreos/xoreos: A reimplementation of BioWare's Aurora engine (and derivatives). Pre-pre-alpha :P" (in en). https://github.com/xoreos/xoreos/. 
  42. 42.0 42.1 "reone". https://github.com/seedhartha/reone. 
  43. "OpenDW". https://github.com/devinsmith/opendw. 
  44. "REDRIVER2/LICENSE at master · OpenDriver2/REDRIVER2 · GitHub". https://github.com/OpenDriver2/REDRIVER2/blob/master/LICENSE. 
  45. "REDRIVER2". https://github.com/OpenDriver2/REDRIVER2. 
  46. "FreeNukum". https://gitlab.com/silwol/freenukum. 
  47. "FreeNukum". https://crates.io/crates/freenukum. 
  48. "EDuke32". https://www.eduke32.com/. 
  49. "Richard Gobeille / EDuke32". https://voidpoint.io/terminx/eduke32. 
  50. Have You Played… Dune II Remake Dune Legacy? on Rock, Paper, Shotgun by Alec Meer (19 September 2015)
  51. "OpenTESArena". 4 November 2021. https://github.com/afritz1/OpenTESArena. 
  52. "XLEngine". https://github.com/Mindwerks/XLEngine. 
  53. "Added a LICENSE file". 31 July 2016. https://github.com/luciusDXL/XL-Engine/pull/21. 
  54. "License confirmation". 11 April 2018. https://github.com/Mindwerks/XLEngine/issues/27. 
  55. Smith, Adam (2011-11-18). "Mods And Ends: Daggerfall & The XL Engine". Rock, Paper, Shotgun. https://www.rockpapershotgun.com/2011/11/18/mods-and-ends-daggerfall-the-xl-engine/. "[XL Engine] [...] it's a custom-built framework to run old games. Essentially, it totally overhauls them, with all sorts of visual enhancements and improved modding support, so it's almost as if they are being ported onto modern systems." 
  56. Larabel, Michael (22 July 2011). "XL Engine For Games Is Being Brought To Linux". Phoronix Media. https://www.phoronix.com/scan.php?page=news_item&px=OTY5NA. 
  57. "Daggerfall Unity". https://github.com/Interkarma/daggerfall-unity. 
  58. Aussie-Made Tools Let You Play Daggerfall In Your Browser (Or Modify It With A Modern Engine) by Logan Booker on kotaku.com (24 January 2015)
  59. One For The Weekend: Daggerfall Tools For Unity by Shaun Green on Rock, Paper, Shotgun (25 January 2015)
  60. "Project Aedra / Code / [r413 /LICENSE.txt"]. https://sourceforge.net/p/aedra/code/HEAD/tree/LICENSE.txt. 
  61. "Project ANISE". https://www.tomyun.pe.kr/projectanise/. 
  62. "Spectalum". https://www.eob2remake.com/. 
  63. F-1 Spirit remake on Brain Games
  64. "GitHub - alexbatalov/fallout1-ce: Fallout for modern operating systems". https://github.com/alexbatalov/fallout1-ce#license. 
  65. "GitHub - alexbatalov/fallout1-re: Reverse engineered Fallout". https://github.com/alexbatalov/fallout1-re#license. 
  66. "falltergeist/license.txt at develop · falltergeist/falltergeist · GitHub". https://github.com/falltergeist/falltergeist/blob/develop/license.txt. 
  67. "darkfo/LICENSE.txt at master · darkf/darkfo · GitHub". https://github.com/darkf/darkfo/blob/master/LICENSE.txt. 
  68. "jsFO/LICENSE at master · ajxs/jsFO · GitHub". https://github.com/ajxs/jsFO/blob/master/LICENSE. 
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