List of game engine recreations

See also: List of open-source video games § Open-source remakes with non-free content from the proprietary original

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	v64tng	Active		MIT License	[1]
Abuse	Abuse	Completed		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	?		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		GPL	[9]
Another World	New RAW	Inactive	?	GPLv2+
	raw (Rewritten engine for Another World)	Inactive	?	GPLv2+	[10]
	rawgl	Inactive	?	?
Arcanum: Of Steamworks and Magick Obscura	OpenArcanum	?	?	?
Arx Fatalis	Arx Libertatis	Active		GPLv3+	[11][12][13]
Bermuda Syndrome	Bermuda Syndrome engine reimplementation	Inactive	?	?
Betrayal at Krondor	xBaK	Inactive		?
Blade Runner	ScummVM	Active		GPLv3+	[14][15]
Blood Omen: Legacy of Kain	Blood Omnicide	?	?	?
BVE Trainsim	openBVE	Completed		Public-domain
Caesar III	CaesarIA	Inactive	?	GPLv3+	[16]
	Julius	Completed		AGPLv3	[17]
Cannon Fodder	Open Fodder	Completed		GPLv3+
Cannon Fodder 2
Carmageddon	dethrace	Active		GPLv3+	[18]
The Castles of Dr. Creep	Castles of Dr. Creep	Completed		GPLv3+
Catacomb 3-D	CatacombGL	Active		GPL	[19]
Catacomb Abyss
Catacomb Armageddon
Catacomb Apocalypse
Cave Story	NXEngine	Inactive		GPL
	doukutsu-rs	Active		MIT
Chaos;Head	FGRE	Inactive	?	GPLv3+
Steins;Gate
Chasm: The Rift	PanzerChasm	Inactive		GPLv3	[20]
Clannad	xclannad	?	?	?
Command & Conquer Tiberian Dawn	FreeCNC	Inactive		GPLv2	[21]
	OpenRA	Active		GPLv3	[22][23]
	Vanilla Conquer	Active		GPLv3[24]	[25]
Command & Conquer: Generals – Zero Hour	Thyme	Active		GPL	[26]
	OpenSAGE	Active		LGPL	[27]
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		GPLv3	[22]
	Vanilla Conquer	Active		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		MIT License	[35]
Curse of the Azure Bonds	coab (Curse of the Azure Bonds)	Inactive		New BSD
Doom engine games	List of Doom ports	Completed		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		GPL	[36][37]
	Devilution	Active		Sustainable Use License	[38]
	DevilutionX	Active		Sustainable Use License	[39]
	djavul	Inactive	?	Unlicense
Die by the Sword	Die by the Sword – Xtended	?	?	?
Dink Smallwood	GNU FreeDink	Completed		GPL
Dragon Age II	xoreos (Bioware's Aurora engine and its derivatives)	Active	?	GPL	[40][41]
Dragon Age: Origins			?
Jade Empire			?
Neverwinter Nights			?
Neverwinter Nights 2			?
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		GPLv3+
Star Wars Knights of the Old Republic II: The Sith Lords	reone	Active	?	GPL	[42]
	xoreos	Active	?	GPL	[40][41]
	KotOR.js	Active		GPLv3+
Dragon Wars	OpenDW	Active	?	ISC license	[43]
Driver 2	REDRIVER2	Completed		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		GPL	[48][49]
Dune II	DuneLegacy	Active	?	GPL	[50]
	OpenDUNE	Active	?	GPL
	Dune Dynasty	Inactive	?	GPL
Dungeon Keeper	KeeperFX	Active		GPLv2+
Dungeon Keeper 2	OpenKeeper	Active	?	GPLv3+
	GLKeeper	Inactive		MIT License
The Elder Scrolls I: Arena	OpenTESArena	Active		MIT License	[51]
The Elder Scrolls II: Daggerfall	XL Engine (DaggerXL)	Inactive	?	MIT License	[52][53][54][55][56]
	Daggerfall Unity	Active		MIT License	[57][58][59]
The Elder Scrolls III: Morrowind	Project Aedra	Inactive	?	as-is	[60]
	OpenMW	Active		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		?
EverQuest	LanternEQ	Active		?
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		GPL-2.0	[62]
F-1 Spirit	F1-Spirit Remake	?	?	?	[63]
Fade to Black	f2bgl	Inactive	?	?
Fallout	Fallout Community Edition	Active		Sustainable Use License	[64]
	Fallout Reference Edition	Active		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		Sustainable Use License	[69]
	Fallout 2 Community Edition	Active		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		GPL
Flashback: The Quest for Identity	REminiscence	Inactive	?	GPL-3.0+	[72]
Freelancer	Librelancer	Active	?	MIT License
Frontier: Elite II	Frontier 1337	?	?	?
	GLFrontier	?	?	?
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		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		?	[82]
Grand Theft Auto: Vice City		Active		?	[82]
The Great Escape	The Great Escape	Active		?
The Great Giana Sisters	OpenGGS	Active	?	GPL	[83]
Heart of Darkness	HODe	Completed		?	[84][85]
Heart of the Alien	Heart of The Alien Redux	Inactive	?	GPL
Heroes of Might and Magic II	fheroes2	Active		GPLv2	[86]
Heroes of Might and Magic III	VCMI project	Active		GPLv2	[87]
Igor: Objective Uikokahonia	Igor	?	?	?
Imperium Galactica	OpenIG	Active		LGPL-3.0	[88]
Jak and Daxter: The Precursor Legacy	OpenGOAL	Active		ISC license	[89]
Jak 2		Active		ISC license
Jak 3		Active		ISC license
Jazz Jackrabbit	OpenJazz	Active		GPLv2	[90]
Star Wars: Dark Forces	The Force Engine	Active		GPLv2	[91]
Outlaws		Active		GPLv2
Star Wars Jedi Knight: Dark Forces II	OpenJKDF2	Active		Custom	[92]
Star Wars Jedi Knight II: Jedi Outcast	OpenJK	Active		GPLv2	[93]
Star Wars Jedi Knight: Jedi Academy		Active		GPLv2
J.R.R. Tolkien's The Lord of the Rings, Vol. I	Lord of the Rings Engine	Active		LGPL	[94]
KKnD: Krush, Kill 'n Destroy	OpenRA	Inactive		GPLv3	[95]
	OpenKKND	Inactive	?	?	[96]
Knytt Stories	knyttds	?	?	?	[97]
The Legend of Zelda: A Link to the Past	Zelda3	Active		MIT License	[98]
The Legend of Zelda: Ocarina of Time	Ship of Harkinian	Active		?	[99]
The Legend of Zelda: Majora's Mask	2 Ship 2 Harkinian	Active		?	[100]
Lemmings (Windows version)	Lemmini	Inactive	?	?
Little Big Adventure	TwinEngine	Inactive	?	GPL
	ScummVM	Active		GPLv3+
Little Big Adventure 2	LBA 2 Engine	Inactive	?	?
	LBA2 Remake	Active	?	MIT License
Little Fighter 2	Project-F	Inactive		GPL	[101]
Magic Carpet	remc1	Inactive	?	GPLv3
Magic Carpet: Hidden Worlds	remc1hw	Inactive	?	GPLv3
Magic Carpet 2	remc2	Inactive	?	GPLv3
Marathon Trilogy	Aleph One	Completed		GPL
Marble Blast Ultra	OpenMBU	Beta		MIT License
Master of Orion	1oom	Inactive		GPL	[102]
Master of Orion II: Battle at Antares	2ooM	Inactive	?	GPL
	OpenMOO2	Inactive	?	GPL
Medal of Honor: Allied Assault	OpenMoHAA	Active		GPLv2	[103]
Mercenary (including Damocles and The Dion Crisis)	MDDClone	Completed		?
Metroid Prime	Metaforce	Inactive		MIT License	[104]
Metroid Prime 2: Echoes
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		GPL
Might and Magic IV: Clouds of Xeen	ScummVM	Active		GPL
	OpenXeen	Inactive	?	GPL
Might and Magic V: Darkside of Xeen	ScummVM	Active		GPL
	OpenXeen	Inactive	?	GPL
Might and Magic VI: The Mandate of Heaven	OpenEnroth	Active	?	GPL
Might and Magic VII: For Blood and Honor		Active		GPL
Might and Magic VIII: Day of the Destroyer		Active	?	GPL
Need For Speed	OpenNFS1	Inactive	?	?	[105]
Need for Speed III: Hot Pursuit	OpenNFS	Active	?	MIT License	[106]
Need For Speed II	Need For Speed II SE	Active	?	MIT License	[107]
Nicky Boom	Nicky	Inactive		?
Nuclear War	Netnuclear	?		?
Oddworld: Abe's Exoddus	R.E.L.I.V.E.	Active		GPLv2+
Oddworld: Abe's Oddysee
Outcast	OpenOutcast	Inactive	?	?
Outpost	OutpostHD	Active	?	Permissive license[108] / proprietary[109]
Out Run	cannonball	Active		GPL-like license with non-commercial clause[110]	[111]
Panzer General II	Open General	Active		BSD
Perfect Dark	perfect_dark	Active		MIT	[112]
Pharaoh	Akhenaten	Active		AGPLv3	[113]
	Ozymandias	Inactive		AGPLv3	[114]
Prince of Persia	FreePrince	Inactive	?	GPLv2+
	SDLPoP	Active	?	GPL
	MININIM	Inactive	?	GPL	[115]
Redneck Rampage	Rednukem	Active		GPLv2, BUILD engine license
Redneck Rampage Rides Again
Rick Dangerous	xrick	Inactive		?	[116]
RollerCoaster Tycoon	FreeRCT	Active	?	GPLv2
RollerCoaster Tycoon 2	OpenRCT2	Active		GPLv3
RuneScape	OpenRSC	Active		AGPLv3	[117]
	Lost City/2004Scape	Active		MIT License	[118]
Sonic CD (2011)	Sonic-CD-11-Decompilation	Active
Sonic the Hedgehog (2013)	Sonic-1-2-2013-Decompilation	Active
Sonic the Hedgehog 2 (2013)		Active
Sonic Mania	Sonic-Mania-Decompilation	Active
RPG Maker 2000	EasyRPG	Active		GPL
RPG Maker 2003
RPG Maker XP aka Ruby Game Scripting System (RGSS)	mkxp, mkxp-z	Active		GPL	[119][120]
RPG Maker VX (RGSS2)
RPG Maker VX Ace (RGSS3)
The Settlers	Freeserf	Active	?	GPL
The Settlers II	Return to the Roots (RttR)	Active		GPL
Silencer	zSilencer	Completed		?
The Sims	Simitone	Active	?	Mozilla Public License	[121]
The Sims Online	FreeSO	Active		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		GPLv3	[22][127][128]
SubSpace	Continuum	Completed		?	[129]
Super Mario 64	Super Mario 64 Port	Active		GPL
Super Mario World	smw	Active		MIT License[130]
Super Metroid	sm	Active		MIT License[131]
Syndicate	FreeSynd	Inactive	?	GPL
System Shock	Shockolate	Active		GPL	[132]
	TSSHP (The System Shock Hack Project)	Inactive	?	BSD
S.T.A.L.K.E.R.: Shadow of Chernobyl	OpenXRay (in fact not a reimpl, but just a release)	Active		non-commercial[133]
S.T.A.L.K.E.R.: Clear Sky		Active
S.T.A.L.K.E.R.: Call of Pripyat		Active
The Temple of Elemental Evil	Temple+	Active		?	[134]
Theme Hospital	CorsixTH	Active		MIT License	[135][136]
Titus the Fox	OpenTitus	Inactive		GPL	[137]
Tomb Raider classic series	TRX – Tomb Raider I & II: Community Edition	Active		GPLv3	[138]
	CroftEngine	Active		LGPL	[139]
	OpenRaider	Inactive	?	GPL-2.0
	OpenTomb	Inactive		LGPL	[140]
	OpenLara	Active		BSD	[141]
	Tomb Raider 5 Decompilation Project	Active	?	?	[142]
	TombEngine	Active		MIT License	[143]
Total Annihilation	Spring Engine (with eXtended Total Annihilation, Balanced Annihilation or Beyond All Reason)	Active		GPL	[144][145][146]
	Total Annihilation 3D	Completed	?	?
Touhou 6 ~ The Embodiment of Scarlet Devil	PyTouhou	?		GPL
Transport Tycoon Deluxe	OpenTTD (reverse engineered)	Active		GPL
Tyrian	OpenTyrian	Active		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		?
	RTC	?		?
GoldSrc (Half-Life 1) games	Xash3D FWGS	Active		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		GPL
Adventure Game Interpreter (AGI) engine by Sierra adventure games	NAGI	?	?	?
Adventure Game Interpreter (AGI) engine, Cinématique, Gob, Groovie, Kyra	ScummVM ScummVM-supported games	?		GPL	[150]
Multimedia Applications Development Environment (MADE engine)		?		GPL	[150]
SCUMM		?		GPL	[150]
Sierra's Creative Interpreter (SCI)		?		GPL	[150]
M4, Parallaction, and others		?		GPL	[150]
Grim Fandango (GrimE-based)	ResidualVM ScummVM	?		GPL	[151]
Escape from Monkey Island		?		GPL	[151]
Myst III: Exile		?		GPL	[151]
The Longest Journey		Active		GPL	[152]
Baldur's Gate (Infinity Engine-based)	GemRB	Active		GPL	[153]
Baldur's Gate II: Shadows of Amn
Icewind Dale
Icewind Dale II
Planescape: Torment
Plants vs. Zombies	PlantsVsZombies.NET	Active		MIT License	[154]
System Shock 2	OpenDarkEngine (i.e., not The Dark Mod), NewDark	Inactive		GPL	[155][156]
Thief: The Dark Project (Dark Engine-based)		Inactive		GPL
Thief II: The Metal Age		Inactive		GPL
UFO: Enemy Unknown	OpenXcom	Completed		GPL	[157]
X-COM: Terror from the Deep
X-COM: Apocalypse	OpenApoc	Active		MIT License	[158][159]
Ultima IV: Quest of the Avatar	xu4	Inactive		GPL
	ScummVM	Active		GPL
Ultima VI: The False Prophet	Nuvie	Inactive		GPL
	ScummVM	Active		GPL
Ultima VII: The Black Gate	Exult	Active		GPL	[160]
Ultima VII Part Two: Serpent Isle
Ultima VIII: Pagan	Pentagram	Inactive		GPL
	ScummVM	Active		GPL
Ultima Online	CrossUO	Active	?	GPL
Ultima Online on Freeshards	Iris2	?	?	?
Ultima Underworld: The Stygian Abyss	Underworld Adventures	Active	?	GPL
Unreal	Surreal Engine	Active		zlib License	[161]
Unreal Tournament
Urban Assault	UA_source	Active		GPL	[162]
Warcraft: Orcs & Humans	Alpha-WC1	?	?	?
	War1gus with Stratagus	Active		GPL-2.0-only
Warcraft II: Tides of Darkness	Wargus with Stratagus	Active		GPL-2.0-only
Wizardry	p-interp	?	?	?
Z-machine	Frotz, ZIP, JZIP, Zip 2000, Zip Infinity and Nitfol	?	?	?
	ScummVM	Active		GPL
Zak McKracken and the Alien Mindbenders	ScummVM	Active		GPL
Zork Nemesis	ScummVM	Active		GPL
Zork: Grand Inquisitor
Video game	Name of game engine recreation	Development	Playable	License	Refs
		Status

See also

• Video games portal

• List of commercial video games with later released source code
• Source port
• Video game remake
• Emulator