Open Source Game Clones

This site tries to gather open-source reimplementations of great old games in one place. If you think that something is missing from the list - please go to our Github repository and create an issue or even a pull request!

Since all these projects are open-source you can help them and make this world a better place. Or at least you can play something to appreciate the effort people put in them.

Similar resources: check out Free Gamer, a blog dedicated to open source game news, and Unix ASCII games, a list of opensource text-based games.

All games that were added in last month are highlighted like this.


ActionScript2 Assembly3 Blitz BASIC6 C127 C#36 C++265 CoffeeScript3 Coffeescript1 Delphi4 Emacs Lisp1 F#2 GO1 Gosu1 HTML1 Haskell1 Java40 JavaFX2 JavaScript55 Lisp2 Lua24 Object Pascal1 Objective-C4 PHP3 Pascal5 Perl2 PowerBASIC1 Python48 QuickBASIC3 Ruby5 Rust1 Scala1 Swift2 TypeScript2 Visual FoxPro1

List of complete clones

Some of these games aren't reimplementations but evolution of original ones, which were eventually open sourced.
ScummVM (repo)Very Active C++
List of supported games is here
1945 #
Py1945 (repo)Halted GPL Python
3D Deathchase #
Deathchase 3D (repo) GPL2 C
Abuse #
Abuse (repo)Playable C++Lisp
Ace of Spades #
Iceball (repo)Active Multiple CLua
OpenSpades (repo)Active GPL3 C++
Ace Combat: Assault Horizon #
open-horizon (repo)Active MIT C++ nya-engine
Achtung, die Kurve! #
Zatacka (repo)Halted GPL C SDL
NetackaHalted C
Age of Empires II #
openage (repo)Active GPL3 C++Python SDL
runnable (not playable yet), requires original files
Akalabeth: World of Doom #
Aklabeth (repo) GPL2 C
Alien 8 #
Alien 8Halted (Playable) C
Allegiance #
Free Allegiance (repo)Sporadic C
Shared source
Alone in the Dark #
Alone in the Dark 2
Jack in the Dark
Alone in the Dark 3
Free in the Dark (repo)Halted GPL C
Anacreon: Reconstruction 4021 #
Ard-Reil: Anacreon Reconstruction Project (repo)Halted GPL2 CC++JavaPascal
Another World #
Out of This World
Outer World (アウターワールド Autā Wārudo)
New RAW (repo)Halted GPL C++
rawgl (repo)Active GPL C++
Another World 2: Heart of the Alien #
Heart of the Alien (repo)Halted C
Archon: The Light and the Dark #
XArchon (repo)Halted GPL3 CC++
Ares #
Antares (repo)Playable GPL3 C++
Armor Alley #
Armor Alley (repo)Active CC3.0 JavaScript
Artillery Duel #
Artillery Duel (repo)Halted GPL3 Python
Arx Fatalis #
Arx Libertatis (repo)Active C++
needs original game files
Ascendancy #
Starlane Empire (repo)Halted GPL C++
Asteroids #
MaelstromHalted (Playable) C
Vectoroids (repo)Halted GPL2 C
Agendaroids (repo)Halted GPL2 C
Asylum #
SDL Asylum (repo)Halted GPL3 C++
Atomix #
AtomiksPlayable C
KAtomicActive C++
GNOME AtomixHalted C
WAtomic (repo)Halted GPL2 Delphi Kylix
AstroMenace #
AstroMenace (repo)Active GPL3 C++
Astrosmash #
Cosmosmash (repo)Sporadic GPL2 C++
Awesomenauts #
BlakedAwesomenaughts (repo)Active MIT JavaScriptPHP
Babaliba #
Babaliba (repo) Visual FoxPro
Baldur's Gate series #
Icewind Dale series
Planescape: Torment
GemRB (repo)Active C++
Ballerburg #
Ballerburg SDL (repo)Active GPL3 C
Balloon Fight #
Balloon Fight (repo)Active MIT DIV Games Studio
Barbarian: The Ultimate Warrior #
Barbarian (repo)Active QuickBASIC QB64
Battle Chess #
Open BattleChess (repo)Halted LGPL C#
Battle City #
Battle City (repo)Sporadic (Playable) C++
TZOD (Tank Zone Of Death) (repo)Sporadic GPL3 C++Lua
Bard's Tale Contruction Set #
Bt Builder (repo)Active GPL3 C++
Bejeweled #
biju-game (repo)Halted (Incomplete) no specified licence JavaScript CraftyJS
Bermuda Syndrome #
Bermuda SyndromeSporadic (Or Halted), Playable
Betrayal at Krondor #
xBaKSporadic (Or Halted), Playable
The Binding of Isaac #
Witch Blast (repo)Active (Playable) GPL3CC BY-NC-SA C++ SFML
Blade Runner #
replicant (repo)Stalled (Incomplete) C++
bladerunner (Engine within SCUMMVM) (repo)Active GPL2 C++
Blake Stone: Planet Strike #
bstoneActive (Playable) C++
Blood #
Blood Crossmatching (EDuke32 vanilla) (repo)Active
Transfusion (repo)Sporadic (Playable)
Bolo #
orona (repo)Halted (Playable) HTML5
Bomberman #
SDL BomberHalted (Playable) C
Bombic (repo)Halted GPL2 C++
Bombic2 (repo)Halted GPL2 C++
Bomb Mania Reloaded (repo)Halted GPL2 C++
I Have No Tomatoes (repo)Halted Development custom licence C++
Boulder Dash #
Rocks n diamondsSporadic (Playable) C
GDash (repo)Active C++
Mining Haze (repo)Halted GPL2 C
Digger (repo)Active no specified licence TypeScript
boulder-dash (repo)Active no specified licence Java
Bratwurst #
bratwurst (repo)Halted GPL2 Lisp
Bruce Lee #
Jet Lee (repo)Active no specified licence C++
Bubble Bobble #
The Bub's Brothers (repo)Halted MIT Python
Bug Bomber #
BitRiot (repo)Active Apache License C++ SDL
BurgerTime #
BurgerSpace (repo)Halted GPL2 C++
Buster Bros #
Pomping World
Pang Zero (repo)Halted GPL2 Perl
Buzz Aldrin's Race Into Space #
Race Into Space (repo)Active GPL2 C++
Cadaver #
Cadaver (repo)Halted (Incomplete) C++
PC game files required
Caesar 3 #
CaesarIA (repo)Active GPL3 C++JavaScript
C++ (game engine), Javascript (game logic,gui), most of original game functionality playable, except war logic
Call to Power II #
Civilization: Call To Power 2 Source Project (repo) custom licence C
Cannon Fodder #
Open Fodder (repo)Active (Playable) C++
Cannon Fodder (repo)Halted no licence specified HTML5
Carmageddon #
OpenC1 (repo)Sporadic (Playable) C#
needs game data
Castle of the Winds #
Castle of the Winds (React/MeteorJS Remake) (repo)Active MIT JavaScript ReactReduxMeteor
Catacomb II #
CatacombSDL (repo)Playable C
needs game data
Cave Story #
NXEngineSporadic (Playable)
needs game data (but it's free!)
Chip's Challenge #
Tile WorldPlayable C
Tile World 2 (repo)Playable C
ChuChu Rocket! #
Duck Marines (repo)Active (Playable) Lua
music is CC-BY-NC-ND
Circus Atari #
Circus Linux! (repo)Halted GPL2 C
Clonk #
OpenClonk (repo)Active C++
Columns #
div-columns (repo)Active MIT DIV Games Studio
Commando #
CommandoJS (repo)Halted (Playable) MIT JavaScriptCoffeescript melonJS
Commander Keen Series #
Commander Genius (repo)Active C++
Keen Dreams (repo)Active GPL2 C
Omnispeak (repo)Active GPL2 C
Command & Conquer #
Command & Conquer: Red Alert
Dune 2000
OpenRA (repo)Active GPL3 C#
Contra #
Contra_remake (repo)Halted GPL2 C++
CookieClickerRemake (repo)Active no specified licence C#
Crazy Cars #
Crazy Cars (repo) no specified licence QuickBASIC QB64
Creatures #
Open Creatures (repo)Halted, Forks Present LGPL C++
Crystal Quest #
CrystalQuest (repo)Active MIT JavaScript HTML5JQuery
Curse of the Azure Bonds #
coab (repo)Sporadic (Playable) C#
Cytadela #
Cytadela (repo)Sporadic GPL3 C++
C-Dogs #
C-Dogs SDL (repo)Active (Playable) GPL2 C SDL2
Dandy #
Fight Or Perish (repo)Sporadic GPL2 C
Dark Reign 2 #
Dark Reign 2 (repo)In-Active dubious (see project page) C++
Defender #
Defendguin (repo)Sporadic GPL2 C
Descent #
Descent 2
D2X (repo)Active C++
DXX-Rebirth (repo)Active C
Kathodos (repo)Halted no specified licence Python Panda3D
DesertStrike: Return to the Gulf #
openstrike (repo)Sporadic (Not Playable) GPL3 C++
Destructo #
Island of Dr. Destructo
The Island of Doctor Destructo
Return of Dr. Destructo (repo)Completed MIT C++ Allegro
Diablo #
freeablo (repo)Active C++
needs game data
Digimon World #
Digimon World Project Ark (repo)Active no specified licence C# Unity
Dodger #
dodger-remake (repo)Halted no specified licence C++
Dogs of War #
openDOW (repo)Sporadic GPL3 C
Doom #
Doom II
Doomsday (repo)Active C
Chocolate Doom (repo)Active C
ZDoom (repo)Active C
PrBoom+ (repo)Active C
Odamex (repo)Active C
GLHeretic (repo) C
Freedoom (repo)Sporadic
free resources for Doom II
Doom Legacy (repo)Active (Playable) C++
GZDoom (repo)Active C++
Mocha Doom (repo)Active GPL3 Java
DOOM-iOS (repo)Halted GPL2 C++
Doom 64 #
Doom64EX (repo)Active GPL2 C
Doom 3 #
dhewm3 (repo)Active GPL3 C++
RBDOOM-3-BFG (repo)Active GPL3 C++
works with BFG edition only
Drugwars #
Dope Wars (repo)Sporadic C
RxWars (repo)Active no specified licence JavaScript
Deuteros #
Deuteros X (repo)Halted C#
Dink Smallwood #
GNU FreeDink (repo)Sporadic GPL3 C
Duck Hunt #
duckhunt (repo)Sporadic Python
Duck-Rehunt (repo)Halted GPL Python
Duck Hunter (repo)Halted no licence specified Python
duckhunt (repo)Halted no specified licence JavaScript
Duke Nukem #
Freenukum Jump'n Run (repo)Stalled GPL3 C
Duke Nukem 3D #
EDuke32 (repo)Active C
Dune 2 #
Dune Legacy (repo)Active C++
OpenDUNE (repo)Active C
Dune Dynasty (repo)Active C
Dune II - The Maker (repo)Halted MIT C++
Dungeon Keeper #
KeeperFX (repo)Active (Not Really A Clone, But A Hack To Make Dungeon Keeper Run On Recent Oses C
Dungeon Master #
Chaos Strikes Back (repo)Halted Stolenware C++
DungeonMaster (repo)Active no specified licence C#
DX-Ball #
DXBall (repo)Active Java Gradle
E.T. the Extra-Terrestrial #
javascript-E.T. (repo)Sporadic (AS-IS) licence JavaScript HTML5
Earth Shaker #
EarthShakerDS (repo)Active custom licence C++
Nintendo DS port
Eat The Whistle #
Eat The Whistle (repo) GPL2 C
Echochrome #
Mugen Kairō
l-echo (repo)Halted GPL3 C++
Elements #
OpenEtG (repo)Active (AS-IS) licence JavaScript
Encounter #
encounter (repo)Active no specified licence JavaScript WebGL
Entombed! #
Entombed! (repo)Halted no specified license C
Escape from Colditz #
Colditz Escape! (repo)Active GPL3 C
Eye of the Beholder II #
Dungeon Eye (repo)Sporadic C#
Elasto Mania #
X-MotoActive (Playable) C++
The Elder Scrolls: Arena #
opentesarena (repo)Halted no specified licence Python
opentesarenapp (repo)Halted no specified licence C++
The Elder Scrolls II: Daggerfall #
Daggerfall.NET (repo)Stalled C#
opendf (repo)Not Playable GPL3 C++
XL-Engine (repo) C++
Daggerfall Unity (repo) Unity
The Elder Scrolls III: Morrowind #
OpenMW (repo)Active GPL3 C++
Emperor of the Fading Suns #
Phoenix (repo)Active no specified licence Java
Exile #
Blades of Exile
Blades of Exile (repo)Active GPL2 C++
Exile 1988 #
EXILE (repo)Halted custom (AS-IS) licence Lua LÖVE
Exolon #
exolon (repo)Active JavaScript
F-1 Spirit #
F-1 Spirit (repo) no licence specified C++
F-Zero #
F-Zero Clone (repo)Active no specified licence JavaScriptCoffeeScript WebGL
Racer (repo)Active GPL3 C++Python
Fade to Black #
f2bglSporadic C++ SDL
Fallout 2 #
DarkFOActive (Not Playable) Apache License JavaScriptPython
needs original game data
Falltergeist (repo)Active (Not Playable, Needs Game Data) C++
parpg (repo)Halted GPL PythonC++
Fallout 3: Van Buren #
Van Buren Project (repo)Halted custom licence (NeoAxis 3D Engine 2.0 Free SDK License Agreement) C#
Fallout Tactics: Brotherhood of Steel #
FreeFT (repo)Active (AS-IS) licence C++
Fallout Online #
(repo)Active GPL3 C++
Fantastic Journey #
Gokujō Parodius!
pucpr-ld-parodius (repo)Halted no specified licence Construct2
Flappy Bird #
CrappyBird (repo)Sporadic MIT JavaScript
Clumsy Bird (repo)Active Development MIT MelonJS
Hocoslamfy (repo)Halted GPL C SDL
Flashback #
REminiscenceModerately Active SDL
Floor 13 #
Floor 13 (repo)Active Ruby
Flying Shark #
Friking Shark (repo)Stalled GPL3 C++
Final Fantasy VIII #
OpenTriadActive no specified licence Java
Flag Catcher #
Gift Grabber (repo)Active no specified licence JavaScript BackBone.js
Football Manager #
Football Manager (repo) GPL2 C
Forsaken #
ProjectX (repo)Playable
FreeSpace 2 #
FreeSpace Source Code Project (repo)Active C++
Freelancer #
LibrelancerActive MPL1.1, MIT C# OpenGL
Frog! #
Back To Nature
back-to-nature-c64-remake (repo)Active no specified licence Java
Frogs and Flies #
Frog Bog
Batrachians (repo)Halted GPL2 C++
Frogger #
Froggix (repo)Halted GPL2 Python
Galaxian #
galaxian (repo)Halted no specified licence ActionScript
Geometry Wars #
Geometry Wars Remake (repo)Halted GPL Java
Grid Wars 2 (repo) no specified licence Blitz BASIC
Gish #
freegish (repo)Active custom licence C
Gladiator #
Openglad (repo)Sporadic C++
Glest #
Glest Advanced EngineSporadic (Playable) C++
Gods #
Gods -Deluxe- (repo)Stalled Java
GoldenEye 007 #
ges-code (repo)Active GPL3 C++
The Goonies #
The Goonies (repo) no specified licence C++
Gorillas #
Gorillas (repo)Sporadic Java Research License 1.6 Objective-C
Gravity Wars #
SlingshotHalted (Playable) GPL2 Python
The Great Giana Sisters #
OpenGGS (repo)Active GPL2 C++
Grim Fandango #
Escape from Monkey Island
Myst III: Exile
ResidualVMActive C++
Grand Theft Auto #
OpenGTA (repo)Halted C++
Grand Theft Auto 2 #
gta2net (repo)Halted C#
Grand Theft Auto III #
OpenRW "Open ReWrite" (repo)Active GPL3 C++
Gravity Force #
Galaxy Forces V2 (repo)Active C++
Guitar Hero #
Frets on Fire (repo)Halted (Playable) Python
(look for songs on the wiki)
Frets on Fire X (repo)Active (Playable) Python
Halls of the Things #
Halls of the Things 2008/2011/2014 Remake (repo)Sporadic no specified licence C#
Hardwar #
Hardwar (repo)Sporadic CC++
Haunted House #
HauntedHouse (repo)Finished no specified licence ActionScript
Heart of Darkness #
HODe (repo)Unknown C++
Heavy Smash #
open-heavy-smash (repo)Halted no specified licence C++
Hexen II #
Hammer of Thyrion (repo)Active C
Heroes of Might and Magic II #
fheroes2 (repo)Active C++
Heroes of Might and Magic III #
VCMI (repo)Active (Playable) GPL2 C++ SDL
time-based releases, requires original files
Highway Encounter #
Vorton (repo)Halted GPL3 C
History Line: 1914-1918 #
Historyline (repo)Halted C# Unity
Homeworld #
Homeworld SDL (repo)Halted (Playable) SDL
HoverRace #
HoverRace (repo)Active custom license (GrokkSoft HoverRace SourceCode License v1.0) C++
Hovertank 3D #
Hovertank3D (repo)Finished Development GPL2 CAssembly
Imperialism #
imperialism-remake (repo)Active GPL3 Python
Imperium Galactica #
Open Imperium Galactica (repo)Occasional (Playable) Java
Interstate '76 #
Interstate Outlaws (repo)Halted GPL Python
Iron Seed #
Iron Seed (repo)Halted GPL3 Pascal
Jagged Alliance 2 #
Jagged Alliance 2 - StracciatellaActive (Playable)
Jazz Jackrabbit #
OpenJazz (repo)Sporadic C++
Jedi Knight II: Jedi Outcast #
JediOutcastLinuxActive (Playable) C++
Jedi Knight: Jedi Academy #
JediAcademyLinuxActive (Playable) C++
OpenJKActive (Playable) C++
Jet-Story #
Jet-Story (repo)Active MIT C++
Jetpac #
Jetpac remake (repo)Finished no specified licence C# XNA
JezzBall #
Ice Breaker (repo)
Joust #
Ostrich Riders (repo)Sporadic GPL3 C++
Jumpgate: The Reconstruction Initiative #
Open JumpgateActive C++
Jump 'n Bump #
Jump'n'BumpHalted GPL2 C
Jumping Jack #
Jumping Jack: Further Adventures (repo)Halted no licence specified C++
Jumping Jack 2: Worryingly Familiar (repo)Halted no licence specified C++
Jumpman #
Jumpman (repo)Halted Assembly
Kaboom! #
DonkeyInTrouble (repo)Sporadic no specified licence Lua LÖVE
Kid Chameleon #
KidChameleonRemake (repo)Active no specified licence# C#
Knights #
Knights (repo)Active GPL3 C++
Knights and Merchants #
KaM Remake (repo)Active Delphi
Kula World #
Roll Away
Kula Quest
Cubosphere (repo)Halted GPL3 C++
Ladder #
Ladder (repo) no specified licence C#
Ladder (repo) GPL2 Java
(source inside JAR file)
ladder (repo)Active MIT GO
Larn #
NLarn (repo)Active GPL2 CLua
Legion #
legion (repo)Halted custom (AS-IS) licence C++ Irrlict
Lego Rock Raiders #
rock-raiders-remake (repo)Active no specified licence JavaScript
The Lord of the Rings Volume 1 #
Lord of the Rings game engine (repo)Halted (Playable) C
Liero #
OpenLiero (repo)Halted C++
OpenLieroX (repo)Active C++
Gusanos (repo)Halted (Seems To Be Playable)
Lionheart #
Lionheart Remake (repo)Active GPL2 Java
Little Big Adventure #
twin-e (repo)Sporadic (Playable) GPL C
needs game data
Locomotion (Amiga 1992) #
Pendomotion (repo)Active no specified licence Python
Lode Runner #
XScavengerHalted (Playable) C
Lode Runner - Total Recall (repo)Active no specified licence HTML5
Log!cal #
Orbium (repo)Sporadic (Playable) GPL2 JavaScript HTML5
Pathological (repo)Halted GPL2 Python
Lose Your Marbles #
Lose Your Marbles (repo)Sporadic MIT JavaScript
Lumines #
luminesk5 (repo)Halted GPL3 Objective-C
Magical Drop #
Krystal Drop (repo)Halted GPL2 C++
Marble Madness #
Marble Madness 3d (repo)Stalled C++
Trackballs (repo)Stalled C++
Metroid Prime #
urde (repo)Active MIT C++Python
engine only
Missile Command #
Missile Command (repo)Halted (Playable) Lua
Mad TV #
TVTower (repo)Active Blitz BASICC
Maxit #
Maxit (repo) no specified licence Java
Maxit (repo)Sporadic BSD C++
The Maze of Galious #
The Maze of Galious (repo) GPL2 C++
Medal of Honor: Allied Assault #
OpenMoHAA (repo)Sporadic (Not Playable Yet) C GPL2
based on ioquake3
Monty Mole #
Monty Mole PC remake (repo)Halted Development no specified licence C++
Moonbase Commander #
Scorched Moon (repo)Sporadic GPL3 Python
Mortal Kombat #
mk.js (repo)Halted (Basic Game) MIT JavaScript
The Need for Speed #
OpenNFS1 (repo)Halted no specified licence C#
Night Stalker #
Afternoon Stalker (repo)Sporadic GPL2 C++
Octopus #
Octopus (repo)Active no licence found Swift
Apple TV 4 required
Oddworld: Abe's Oddysee #
Oddworld: Abe's Exoddus
alive (repo)Active MIT C++
Outcast #
OpenOutcast (repo)Halted GPL2 C++
Outrun #
アウト ラン
Auto Ran
Cannonball (repo)Active (Playable) C++
needs game data
Outrun (repo)Active QuickBASIC QB64
Oxyd #
Enigma (repo)Active C++
Pac-Man #
pacman (repo)Halted custom licence JavaScript
pacman-canvas (repo)Active minimal licence HTML5
pacman (repo)Sporadic no specified licence HTML5
Google Pacman (repo)Finished no specified licence JavaScript Flash
pacman (repo)Active Development no specified licence JavaScript HTML5
jspacman-canvas (repo)Halted no specified licence JavaScript HTML canvas
div-pacman2600 (repo)Active MIT DIV Games Studio
Pitfall! #
div-pitfall (repo)Active MIT DIV Games Studio
Populous: The Beginning #
OpenPop (repo)Halted GPL3 C++
Portal #
glPortal (repo)Active (Playable) C++
Prince of Persia #
SDLPoP (repo)Active (Playable) C
FreePrinceHalted (Mostly Playable)
Quadnet #
Mauvenet (repo) no specified licence C++
Quake #
DarkPlaces (repo)Active GPL2 C
ezQuake (repo)Active GPL2 C
ProQuake 4 (repo) GPL2 C
QuakeSpasm (repo)Active GPL2 C
TyrQuake (repo)Active GPL2 C
Quake 2 #
Jake2 (repo)Active GPL2 Java
Yamagi Quake II (repo)Active GPL2 C
Quake 3 #
ioquake3 (repo)Active C
OpenArena (repo)Sporadic C
FQuake3 (repo)Sporadic GPL2 F#
QuakeJS (repo)Halted MIT JavaScript
Ken's Labyrinth #
LAB3D/SDL (repo)Sporadic no licence found C
Lugaru: The Rabbit's Foot #
Lugaru (repo)Halted GPL2 C++
M.U.L.E. #
mewl (repo)Sporadic GPL2 C++
Magic Carpet #
magiccarpet (repo)Halted no specified licence C++
Manic Miner #
Manic Miner (repo) freeware but no specified licence for source Blitz BASIC
Marathon #
Marathon 2
Marathon Infinity
Aleph One (repo)Active C++
Mario World #
Secret Maryo Chronicles (repo)Sporadic C++
Mari0 (repo) Lua LÖVE
Full Screen Mario (repo)Active (Playable) CCPL JavaScript
Master of Orion 2 #
OpenMOO2 (repo)Moderately Active Python
M.A.X. #
Mechanized Assault and eXploration Reloaded (repo)Moderately Active C++
Mech Warrior #
LinWarrior (repo)Stalled Apache License C++
MechCommander 2 #
MechCommander 2 Omnitech (repo)Halted Development C++
Mega Lo Mania #
Gigalomania (repo)Moderately Active (Playable) C++
MegaMan #
Executive Man (repo)Active custom licence JavaScript
Meridian 59 #
Open Meridian (repo)Active GPL2 C
Meridian 59 Server 105 (repo)Active GPL2 C
Meridian 59 German Server 112 (repo)Active GPL2 C
Millipede #
Monsters and Mushrooms (repo)Halted GPL2 Python
Minecraft #
Minetest (repo)Active CC++
Manic Digger (repo)Moderately Active C#
GnomescrollHalted (Playable) GPL3 C++
Terasology (repo)Active (Playable) Apache License Java
Hematite (repo)Active Development MIT Rust
Digbuild (repo)Halted GPL2 C++
TrueCraft (repo)Active MIT C#
Voxelands (repo)Active Development GPLv3 C++
pycraft (repo)Active GPL2 Python
Minesweeper #
Minesweeper (repo)Halted no specified licence F#
Movie Business #
movbizz (repo)Active MIT PHPJavaScript
Nebulus #
TopplerSporadic C++
Nether Earth #
Nether Earth Remake (repo) no specified licence C++
Neverwinter Nights #
Neverwinter Nights 2
Star Wars: Knights of the Old Republic
Star Wars: Knights of the Old Republic II – The Sith Lords
Jade Empire
Sonic Chronicles: The Dark Brotherhood
The Witcher
Dragon Age: Origins
Dragon Age II
xoreos (repo)Sporadic (Not Playable) C++
Nodes of Yesod #
Nodes of Yesnod remake (repo)Halted no specified licence C# XNA
One Must Fall: 2097 #
OpenOMF (repo)Active
single player, 2 player and network play are playable, needs free resources from
Ruby OMF 2097 Remake (repo)Halted BSD4 Ruby
Overflow #
JOverflow (repo)Halted no specified licence Java
Panzer General #
OpenGeneralSporadic C++
Open Panzer (repo)Active HTML5
LGeneral (repo)Halted (Or Very Sporadic) (Playable) C
Paradroid #
FreedroidClassicCompleted C
Nighthawk (repo)Halted (Playable) C++
Paratrooper #
Paratrooper (repo)Halted no licence specified Python
Phantasy #
Phantasy (repo)Halted no specified licence Java
Pipe Mania #
Pipemania (repo)Halted no specified licence Lua Love3D
Pokémon #
Tuxemon (repo)Active (Alpha, Playable) Python Pygame
Pokémon Mystery Dungeon #
PKMN-FX (repo)Active GPL3 Java
Pole Position #
grid-leader (repo)Halted no specified licence Python Panda3D
Punch-Out!! #
THREEPunchOut (repo)Active no specified licence JavaScript
Pushover #
Pushover (repo)Moderately Active (Playable) C++
Puzznic / Brix #
Wizznic! (repo)Active (Playable) C
Q*bert #
ReQbert (repo)Halted GPL3 HTML5
R-Type #
R-Type Clone from Octobinz (repo)No Licence C++
demo only
rtype (repo)Halted Development no licence C++
Railroad_Tycoon #
FreeRails (repo)Halted C++Java
FreeRails 2 (repo)Halted Java
Rampart #
Escalade (repo)Halted no specified licence Scala
Rampart-Android (repo)Active no specified licence Java
Raptor: Call of the Shadows #
raptor (repo)Halted no specified licence JavaScript
Redneck Rampage #
erampage (EDuke32 fork) (repo)Active C
Rescue! #
Rescue! Max (repo)Halted GPL2 Java
Rick Dangerous #
xrickHalted (Playable) C
rickyd (repo)Sporadic (Playable) C++
Rise of the Triad #
Rise of the Triad for Linux (repo)Sporadic C
River Raid #
Ruby Raid (repo)Halted no specified licence Ruby
The Adventures of Robbo #
Robbo (repo)Active (Playable) JavaScript
Road Fighter #
Road Fighter (repo) LGPL2 C++
Robotfindskitten #
rfk-inform (repo)Stalled Inform6
Robotron: 2084 #
robotron (repo)Active JavaScript
Rodent's Revenge #
Open Rodent's Revenge (repo)Halted GPL3 C++
RollerCoaster Tycoon #
FreeRCT (repo)Active C++
RollerCoaster Tycoon 2 #
OpenRCT2 (repo)Active GPL3 C
Ryzom #
Ryzom Core (repo)Active AGPLv3 & Creative Commons Attributions-ShareAlike 3.0 C++
Scorched Earth #
Atomic TanksSporadic (Playable)
Scramble #
Scramble (repo) no specified licence PowerBASIC
Seaquest #
Seaquest (repo)Sporadic no specified licence C#
Shadowgrounds: Survivor #
shadowgrounds (repo)Halted Shadowgrounds & Shadowgrounds Survivor Source Code License C++
Simon #
asdf (repo)Finished MIT JavaScript
Skool Daze #
pyskool (repo)Active GPL3 Python
Space Rangers 2: Dominators #
OpenSR (repo)Active C++Python
Strike Commander #
libRealSpace (repo)Active C++
Sensible Soccer #
FreeKick (repo)Active GPL C++
YSoccer (repo)Sporadic GPL Blitz BASIC
Sensitive #
One Way To Go (repo)Active GPL3 Lua
The Sentinel #
sentinel (repo)Sporadic no specified licence JavaFX
Seven Kingdoms #
Seven Kingdoms: Ancient Adversaries (repo)Active C++
Shining Force II #
Shining Force 2 Reverse Engineer (SF2RE) (repo)Sporadic no specified licence C
reverse engineering project
Shining Soul #
Shining-Soul-Remake (repo)Active no specified licence Python
Sid Meier's Alpha Centauri #
Freeciv Alpha Centauri project (repo)Halted GPL2 C
Sid Meier's Colonization #
FreeCol (repo)Active Java
cc94 (repo)Active (Required Original Files) AGPL3 C++Python
Sid Meier's Pirates! #
Crown and Cutlass (repo)Halted BSD C++
Shadow Warrior #
JonoF's Shadow Warrior Port (JFSW) (repo)Active (Playable) C
SWP (repo) GPL2 C
Siege #
FreeSiege (repo)Sporadic (Playable) C++
Siege of Avalon #
Siege of Avalon Open Source (repo)Stalled custom license Pascal
Silencer #
zSILENCER (repo)Playable C++
Silent Hunter 4 #
Danger from the Deep (repo)Sporadic C++
SimTower #
OpenSkyscraper (repo)Active (Playable) C++
SingStar #
UltraStar Deluxe (repo)Active (Playable) Object Pascal
Solar Fox #
SolarWolf (repo) LGPL 2.1 Python
Sopwith #
SDL Sopwith (repo)Halted (Playable) C SDL
Sopwith 3 (repo) GPL2 C++
Space Invaders #
pyspaceinvaders (repo)Halted GPL2 Python
div-spaceinvaders2600 (repo)Active MIT DIV Games Studio
Space Rangers #
Space-rangers (repo)Halted no specified licence C#
Speedball 2 #
Speedball 2Halted (Not Fully Playable) C#
reverse engineered prototype
Star Control 2 #
The Ur-Quan Masters (repo)Active C
star-control2 (repo)Active MIT C++
Star Trek: Voyager – Elite Force #
RPG-X (repo)Active GPL2 C
Starcraft #
Stargus (repo)Moderately Active C++Lua
Stunt Car Racer #
Stunt Car Racer Remake (repo)Stalled C++
Stars! #
Freestars (repo)Halted GPL2 C++
NStars! (repo)Halted GPL2 C#
Star Castle #
Star Castle (repo) C++
reuse forbidden without permission
Star Raiders (Atari) #
Atari8bit_StarRaiders (repo)Halted Assembly
reverse engineering project
Star Wars (1983 arcade game) #
Star-Wars-III (repo)Finished GPL2 Python
Starshatter #
starshatter-open (repo)Sporadic custom licence (Starshatter OpenSource Distribution) C++
Stunts #
4D Sports Driving
Ultimate Stunts (repo)Moderately Active C++
Styx #
Styx (repo)Halted no specified licence C++
Supaplex #
splexhd (repo)Halted GPL2 C++
Super Cars #
Supercars III (repo)Sporadic Java
Super Foul Egg #
SuperFoulEgg (repo)Stalled custom licence Objective-C
Super Mario #
Mega MarioHalted (Playable) C++
pucpr-ld-mario3 (repo)Halted Development no specified licence Construct2
uMario (repo) GPLv2 C++ SDL2
Super Methane Brothers #
Super Methane BrothersHalted (Playable) C++
super-methane-brothers-gx (repo)Sporadic GPL2 C++
Wii and GameCube port
Super Monkey Ball #
Veraball (repo)Active Development MIT Gobot
irrlamb (repo)Active GPL3 C++ Irrlicht
Neverball (repo)Active GPL2 C++ SDL
Survivor (1986) #
Survivor (repo)Sporadic CC BY-NC 3.0 JavaScript HTML
Syndicate #
FreeSynd (repo)Active C++
Syndicate Wars #
Syndicate Wars PortInactive (Playable) GPL3
no network support, requires original data
System Shock #
Citadel (repo) Unity
Terraria #
Open Terraria Rewrite (repo)Stalled (Wip) Java
terrarium (repo)Active no specified licence C++
The Castles of Dr. Creep #
DrCreep (repo)Completed C++
The Hobbit #
hobbitgfx (repo)Active JavaScript
The Last Ninja #
LastNinja (repo)Sporadic (Playable) C++
The Settlers #
Freeserf (repo)Active (Playable) C
The Settlers II #
Return to the Roots (repo)Active C++
The Settlers III #
JSettlers (repo)Active Java
needs original files
Shobon Action #
Open Syobon Action (repo)Halted GPL2 C++
SkiFree #
skifree.js (repo)Active custom licence JavaScript
Skifree-HTML5-clone (repo)Halted GPL3 HTML5
Slot Racers #
Slot-Racers (repo)Halted GPL3 C
Space Station 13 #
ss13remake (repo)Halted GPL3 C#
Star Fox 64 #
UnnamedStarFoxClone (repo)Active no specified licence C# Unity
Stratosphere: Conquest of the Skies #
openStrato (repo)Active GPL2 JavaScript WebGL
Swing #
XSwing Plus (repo)Sporadic GPL3 Java
Tempest #
Arashi-JS (repo)Halted JavaScript
Space Twitch (repo)Active C#
wbta (repo)Active no specified licence Java
Test Drive #
opengl_test_drive_clone (repo) GPL3 C
Tetris Attack #
Panel Attack (repo)Active (Playable) Lua
basic networking support
Crack Attack! (repo)Halted (Playable) C++
networking support
FreeBlocksActive (Playable) C SDL
Theme Hospital #
CorsixTH (repo)Active Development, Time-Based Releases (AS-IS) licence C++Lua SDL2
Theme Park #
Theme Park Builder 3D CAD (repo)Halted GPL2 C++ OpenGLSDL
Thromolus #
thromolusng (repo)Halted GPL3 Python
Thrust #
Thrust (repo)Halted GPL2 C
Tiny Wings #
Tiny Wings (repo)Halted MIT Objective-C
Titus the Fox #
OpenTitus (repo)Sporadic C SDL
Total Annihilation #
Spring (repo)Active C++JavaPython
Total Annihilation 3D (repo)Moderately Active C++
Tomb Raider #
OpenRaiderActive C++
OpenTomb (repo)Active C++
Touhou #
PyTouhou (repo)Active Python
Taisai Project (repo)Halted (Playable) C
TrackMania #
ManiaDrive (repo) no license specified CPHP
Transplant #
Spaceship Duel (repo)Sporadic Development BSD C#
Transport Tycoon #
Transport Tycoon Deluxe
OpenTTD (repo)Active (Extremely Playable) C++
Tranz Am #
Tranzam (repo)Halted C++
Tron #
newtron (repo)Halted no specified licence HTMLJavaScript
Tron (repo) JavaScript HTMLjQueryCSS
Turmoil #
datastorm (repo)Active (AS-IS) licence C
Turnabout #
turnabout (repo)Halted (Working In Progress) no specified licence CoffeeScript
Turok #
TurokEX (repo)Stalled C++
Turrican #
HurricanHalted, Playable (Makefile Needs Edits To Compile On Linux) C++
Tyrian #
OpenTyrian (repo)Moderately Active C
Tyrian Remake (repo)Sporadic GPL2 Java
Ugh! #
UGH-remake (repo)Halted no licence specified C
gosugh (repo)Halted MIT Gosu Chipmunk
Ultima Online #
Iris2 (repo)Development, Playable
Ultima II: The Revenge of the Enchantress #
UiirJS (repo)Halted no specified licence JavaScript
Ultima IV #
xu4 (repo)Active C++
Ultima VI #
The Savage Empire
Martian Dreams
Nuvie (repo)Active C++
Ultima VII #
Exult (repo)Moderately Active C++
Ultima VIII #
Pentagram (repo)Sporadic C++
Uncharted Waters #
Uncharted waters 2 remake (repo)Active GPL2 Java
Uninvited #
uninvited (repo)Sporadic Artistic License 2.0 Inform
Utopia #
Utopia (repo)Stalled JavaScript
Vlak #
Train (repo)Sporadic BSD Java
Viper #
viper (repo)Halted no specified licence CoffeeScript
Warlords II #
FreeLords (repo)Active GPL2 Java
Warcraft: Orcs & Humans #
warcraft-remake (repo)Active GPL2 Java
needs original files
Warcraft II #
Wargus (repo)Moderately Active C++Lua
Wario Land 3 #
Wario-Land-3 (repo)Active no specified licence Python Pygame
Warzone 2100 #
Warzone 2100 (repo)Active C++
Where in the World Is Carmen Sandiego? (1985) #
thiefcatcher (repo)Active GPL3 C++
Willow #
Willow-Game-Remake (repo)Halted only basic copyright C++
Wing Commander: Privateer #
Privateer - Gemini Gold (repo)Moderately Active C++
Wizard of Wor #
KnightOfWor (repo)Active GPL3 Java
Wizardry #
Wizardry Legacy (repo)Active GPL3 C++
Wolfenstein 3D #
Spear of Destiny
ECWolf (repo)Active C++
Wolfenstein: Enemy Territory #
ET: Legacy (repo)Active CC++Lua
needs original game files
World of Goo #
OpenGoo (repo)Active (Not Playable)
X-COM: UFO Defense #
UFO: Enemy Unknown
X-COM: Terror from the Deep
OpenXcom (repo)Active GPL3 C++
EU fully playable, TftD in development
UFO2000 (repo)Halted (Playable) C++
X-COM: Apocalypse #
OpenApoc (repo)Active MIT C++
X-It #
xit (repo)Halted no specified licence JavaScript
Xenon 2 Megablast #
Phavon (repo)Halted (Wip) GPL2 C
XPilot #
XPilot NG (repo)Stalled GPL2 C
XQuest #
XQuest 2 (repo) custom licence Pascal
Zarch #
Ajax3d (repo)Halted GPL2 JavaScript
Z Virus (repo) Blitz BASIC
Z Virus V2 (repo) Blitz BASIC
Solarus (repo)Active C++Lua
lttp-phaser (repo)Active MIT JavaScript WebGLPhaser
Z #
The Zod Engine (repo)Active
Zoop #
KZap (repo)Halted GPL2 C++
Zoop (repo) no specified licence Java
Zombie Apocalypse #
zombie apocalypse html5 (repo)Halted (Wip) no specified licence JavaScript HTML5
Zork #
Zorkish (repo)Sporadic no specified licence C++
Zuma #
Zaz (repo)Halted GPL3 C++
Civilization #
Civ-Remake (repo)Active (Incomplete) no specified licence Ruby
CivOne (repo)Active CC0 C#
requires original files
Elite #
Mission ELITE: The Battle For Birera (repo)Halted Development no specified licence C
Elite II #
GLFrontier (repo)Halted C++
Frontier 1337 (repo) no specified licence C
PSP port
Micro Machines #
Microracers (repo)Halted GPL2 C++
SkyRoads #
spaceroads (repo)Halted only basic copyright licence C++ Ogre3D
OpenRoads (repo)Halted (Playable) MIT TypeScript HTML5WebGL

Inspired by original game series

Battle Chess #
Brutal Chess (repo)Halted GPL2 C++
Battle City #
BattleCity2014 (repo)Sporadic no specified licence C++ Ogre3DEntityX
Candy Crush Saga #
CookieCrunch (repo)Sporadic basic copyright licence Swift
Dungeon Keeper 2 #
OpenKeeper (repo)Active (Not Playable Yet) GPLv3 Java JMonkeyEngine
needs original game files
Heroes of Might and Magic III #
Ancient Beast (repo)Active (Playable) JavaScript HTML5Phaser
Mortal Kombat #
OpenMortal (repo)Sporadic C++
Master of Monsters #
The Battle for Wesnoth (repo)Active GPL2 C++CJavaPythonLuaEmacs Lisp
Tetris Attack #
Block Attack - Rise of the Blocks (repo)Active GPL C++ SDL2
Thrust #
Transball GL (repo)Halted GPL2 C++
Super Transball 2 (repo)Finished Development GPL3 C++
Wizardry #
jClassicRPG (repo)Stalled GPL3 Java
Wolfenstein 3D #
Spear of Destiny
Voxelstein 3D (repo)Halted MIT C++
A-Train #
FreeRails (repo)Stalled C#
Age of Empires #
0 A.D. (repo)Active C++
Anno series #
Unknown Horizons (repo)Active Python
Arkanoid #
PyBreak360 (repo)Active Python
Ball And Wall (repo)Active MIT JavaScript
Artemis: Spaceship Bridge Simulator #
Space Nerds In Space (repo)Active GPL2 C
Battle Isle series #
Crimson Fields (repo)Development (Playable) C++
Advanced Strategic Command (repo)Sporadic (Playable) GPL2 C++
Battle Zone #
BZFlag (repo)Active (Playable) C++
Brain Blasters #
brainblast (repo)Sporadic no specified licence C++
Breakout #
BRIQUOLO (repo)Halted GPL3 C++
Civilization II #
Freeciv (repo)Active C
Play Freeciv! (repo)Active CJavaJavaScript
online browser game
C-Evo (repo) Delphi
Diablo #
Summoning Wars (repo)Active C++Lua
FreedroidRPG (repo)Active, GPL2 CLuaPython
Flare (repo)Active C++
Dupocracy (repo)Active HTML5
Dungeon Keeper #
OpenDungeons (repo)Active C++
Guitar Hero #
Dance Dance Revolution
Performous (repo)Active (Playable) C++
Stepmania (repo)Active (Playable) C++Lua
Elite #
Oolite (repo)Active
Elite II #
Pioneer (repo)Active C++
Escape Velocity #
Naev (repo)Active C
Endless Sky (repo)Active GPL3 C++
Fall Down #
ativayeban (repo)Halted (Playable) GPL2 C SDL
Falling Time (repo)Halted (Playable) GPL2 C SDL2
Falcon #
FreeFalcon (repo)Active BSD2 C++
Lemmings #
Pingus (repo)Active C++
Lix (repo)Active (Playable) C++
JavaFXLemmings (repo)Active GPL2 JavaFX
The Lost Vikings #
freeVikings (repo)Sporadic GPL2 Ruby
Lotus Esprit Turbo Challenge #
RacerJS (repo)Halted MIT JavaScript
Mario Kart #
SuperTuxKart (repo)Active Development, Playable C++
Master of Orion Series #
FreeOrion (repo)Moderately Active Code GPL2, Content CC-BY-SA 3.0 C++Python
Microsoft Flight Simulator #
FlightGear (repo)Active C++
Microsoft Train Simulator #
OpenRails (repo)Active C#
Missle Command #
ICBM3D (repo)Halted no specified licence C
Similar to Natural Selection #
Unvanquished (repo)Active C
Tremulous (repo)No Development C
Hack #
SLASH'EM (repo)Halted Nethack General Public License C
Nexuiz #
Xonotic (repo)Active (Playable) C
Omega Race #
Torrega Race (repo)Halted (Playable) GPL3 Lua LÖVE
Omega Race Remake (repo)Sporadic no specified licence C#
Paradroid #
FreedroidRPG (repo)Active GPL2 PythonCLua
RPG Maker #
EasyRPG (repo)Active C++
Simcity #
LinCity (repo)Halted C++
MicropolisHalted C++Python
MicropolisJS (repo)Halted GPL3 JavaScript HTML5
port of Micropolis
OpenCity (repo)Halted C++ (repo)Halted GPL3 JavaScript HTML5
The Settlers #
The Settlers II
Widelands (repo)Active C++LuaPython
Snake #
Gusty's Serpents (repo)Halted GPL2 C++
Thief #
The Dark Mod (repo)Active (Playable) C++
Sokoban #
CavePacker (repo)Active (Playable) GPL3 C SDL
Sonic the Hedgehog #
Open Surge (repo)Sporadic C
Sonic Robo Blast 2 (repo)Active CLua
Super Hexagon #
Open Hexagon (repo)Active (Playable) C++
Super Mario #
Super Mario War (repo)Halted (Playable) C++
SuperTux (repo)Active (Playable) GPL3 C++ SDL
Super Mario Bros With SFML in C# (repo)Active GPL2 C#
Super Mario Bros And Level Editor in C# (repo)Active MIT C#
Transport Tycoon Deluxe #
Simutrans (repo)Active C++
Tribal Hero #
Danger Zone (repo)Active (Somewhat Sporadic) - Not Yet Playable Java
Pizza Tycoon #
Pizza Business (repo)Stalled GPL2 C++
Puzzle Bobble #
Frozen Bubble (repo)Sporadic Perl
Scorched Earth #
Scorched3D (repo)Active GPL2 C++
SkyRoads #
Orbit-Hopper (repo)Halted GPL2 C++
Tetris #
4DTris (repo)Halted GPL2 C
Hextris (repo)Active GPL3 JavaScript
Crimsonland #
Violetland (repo)Active (Playable) C++
Worms Series #
Hedgewars (repo)Active PascalC++Haskell
WarMUX (repo)Sporadic C++
UGH! #
CaveExpress (repo)Active (Playable) GPL3 C SDL
Warcraft II #
Dark Oberon (repo)
Wipeout #
Core Breach (repo)
H-Craft Championship (repo)Active C++ ZLIB
Ecksdee (repo)Halted GPL2 C++
HexGL (repo)Active CC 3.0 HTML5WebGL
The Rush (repo)Halted GPL2 C++
RGP - Racing Game Project (repo)Stalled no specified licence Python Blender
X-COM Series #
UFO: Alien Invasion (repo)Active C
Xenowar (repo)Halted (Playable) C++
Project: Xenocide (repo)Halted GPL2 C++
X-Force: Fight For Destiny (repo)Sporadic GPL2 Delphi Kylix
XorCurses (repo)Completed
Legend of Zelda #
Open Zelda (repo)Sporadic (Playable) C++
The Legend Of Zelda - Return Of The Hylan (repo)Finished no specified licence C++
The Legend Of Zelda - Oni Link Begins (repo)Finished no specified licence C++
The Legend Of Zelda - Time To Triumph (repo)Finished no specified licence C++
The Legend Of Zelda - Navi's Quest (repo)Finished no specified licence C++ SDL
The Legend Of Zelda - Picross (repo)Finished no specified licence C++
Fanwor (repo)Active (Playable) GPL2 C SDL
WWW (repo)Halted GPL3 JavaScript HTML5