Free & Open Source Clones & Remakes of Retro Games

3,241 open-source clones and remakes of 1,919 retro games — real source code you can read, fork, and play today, not just a free download.

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Sonic CD Disassembly

Clone of Sonic CD

An incomplete disassembly of Sega CD's Sonic CD that needs the original game files supplied to build a working ISO.

Platforms:Sega CD

Stars18

Updated26 days ago

LicenseUnknown

Release2025

Genre: Platform

Theme: —

Halted

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Space Funky B.O.B.

Clone of B.O.B.

A probably-complete source code release for B.O.B. on the SNES, sourced from romhacking.net.

Platforms:Apple II

Stars18

Updated8 years ago

LicenseUnknown

Release2018

Genre: Platform

Theme: Sci-Fi

Sporadic

Space Invaders Emulator

Clone of Space Invaders

A from-scratch Intel 8080/Space Invaders arcade emulator in C#, with save states, rewind, and an interactive debugger.

Platforms:WindowsLinuxOSX

Stars18

Updated4 months ago

LicenseUnknown

Release2019

Genre: Arcade

Theme: —

Active

Wolf3dX

Clone of Wolfenstein 3D

An open-source MonoGame reimplementation of Wolfenstein 3D for Windows and Linux, compatible with the shareware game data.

Platforms:WindowsLinux

Stars18

Updated18 days ago

LicenseGPL-2.0

Release2020

Genre: FPS

Theme: —

Archived

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boulder-dash

Clone of Boulder Dash

A small Java implementation of Boulder Dash structured around the MVC pattern; archived, unplayable, with minimal documentation.

Platforms:None

Stars18

Updated5 years ago

LicenseMIT

Release2015

Genre: Arcade

Theme: —

Halted

wbt

Clone of Tempest

wbt is a fairly faithful, though not fully feature-complete, Java clone of the 1981 Atari arcade game Tempest.

Platforms:None

Stars18

Updated11 years ago

LicenseUnknown

Release2013

Genre: Arcade

Theme: —

Active

Bansoko

Clone of Soko-Ban

A space-themed reimagining of 1984's MS-DOS Soko-Ban with all 60 original levels, MIT-licensed source, and mod support for custom levels.

Platforms:WindowsLinux

Stars17

Updated11 days ago

LicenseMIT

Release2019

Genre: Puzzle

Theme: —

Halted

BitRiot

Clone of Bug Bomber

A reimplementation of the Amiga game BugBomber, ported from Win32/DirectDraw to SDL2 with controller support and an RmlUi-based menu.

Platforms:WindowsLinux

Stars17

Updated2 years ago

LicenseApache-2.0

Release2016

Genre: Arcade

Theme: —

Sporadic

Bobby

Clone of Bobby Carrot

A browser-based puzzle game built with JavaScript and npm tooling, described by its author as inspired by Pascal Penguin and Bobby Carrot.

Platforms:Web

Stars17

Updated6 months ago

LicenseAGPL-3.0

Release2019

Genre: Puzzle

Theme: —

Halted

Castle Adventure

Clone of Castle Adventure

A C++ remake of the 1984 DOS game Castle Adventure reusing the original's map, now running via a dxwrapper layer to Direct3D9/DirectInput8.

Platforms:Windows

Stars17

Updated6 years ago

LicenseUnknown

Release2019

Genre: Adventure

Theme: —

Sporadic

Children of Solarus

Clone of Legend of Zelda - A Link to the Past

A free, open-source 2D game on the Solarus engine, remaking the team's earlier fangame Zelda Mystery of Solarus DX with free assets.

Platforms:WindowsLinuxOSX

Stars17

Updated5 months ago

Licensecc-by-sa-4.0

Release2018

Genre: Action

Theme: —

Halted

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Corncob 3D

Clone of Corncob 3D

Preserves the source code of Corncob 3D, a 1992 DOS game whose developer said it could be used freely.

Platforms:DOS

Stars17

Updated8 years ago

LicenseUnknown

Release2018

Genre: Simulation

Theme: Sci-Fi

Halted

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DarkReignLauncher

Clone of Dark Reign: The Future of War

Platforms:Windows

Stars17

Updated3 years ago

LicenseMIT

Release2018

Genre: Real-Time Strategy

Theme: Sci-Fi

Halted

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Duke64-RE

Clone of Duke Nukem 3D

Platforms:N64

Stars17

Updated1 year ago

LicenseUnknown

Release2025

Genre: FPS

Theme: —

Sporadic

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Final Fantasy V Disassembly

Clone of Final Fantasy V

A disassembly of Final Fantasy V for the SNES, aiming to reproduce the original Japanese ROM and RPGe fan-translation byte-for-byte.

Platforms:SNES

Stars17

Updated8 months ago

LicenseGPL-3.0

Release2024

Genre: RPG

Theme: Fantasy

Active

Gardens of Kadesh

Clone of Homeworld

Gardens of Kadesh is a fan-maintained continuation of Homeworld SDL, an earlier community port of Homeworld's 1999 source code.

Platforms:WebWindowsLinux

Stars17

Updated11 days ago

Licenseother

Release2019

Genre: Real-Time Strategy

Theme: Sci-Fi

Halted

Ghostly

Clone of Pac-Man

Ghostly is a Pac-Man-inspired multiplayer AI programming game where bots control ghosts, originating from the aicompo-tg17 competition.

Platforms:Windows

Stars17

Updated5 years ago

LicenseUnknown

Release2017

Genre: Arcade

Theme: —

Halted

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Jedi Academy

Clone of Star Wars Jedi Knight: Jedi Academy

Raven Software and Activision's official 2003 GPLv2 source code release of Star Wars Jedi Knight: Jedi Academy, not a third-party remake.

Platforms:Windows

Stars17

Updated13 years ago

LicenseGPL-2.0

Release2013

Genre: Fighting

Theme: Fantasy

Halted

Jet Set Willy 2021 Edition (BBC Micro)

Clone of Jet Set Willy

A reworked disassembly of the 1984 BBC Micro port of Jet Set Willy, fixing bugs and adding features the original never had.

Platforms:BBC Micro

Stars17

Updated2 years ago

LicenseUnknown

Release2021

Genre: Platform

Theme: —

Active

Laser Kombat

Clone of LaserTank

Laser Kombat is a modernized SDL2/C++17 port of David Dewey's GPL-licensed tank-destroying laser puzzle game.

Platforms:WindowsLinux

Stars17

Updated2 months ago

LicenseGPL-3.0

Release2021

Genre: Puzzle

Theme: —

Halted

No preview

Manic Miner (BBC)

Clone of Manic Miner

A disassembly and byte-for-byte reassembly of the BBC Micro port of Manic Miner, rebuilt using the ACME assembler.

Platforms:BBC Micro

Stars17

Updated2 years ago

LicenseUnknown

Release2021

Genre: Platform

Theme: Fantasy

Halted

Octopus

Clone of Octopus

A Swift remake of Nintendo's Octopus Game & Watch for Apple TV 4.

Platforms:iOS

Stars17

Updated10 years ago

LicenseUnknown

Release2016

Genre: Arcade

Theme: —

Halted

OpenMOO2

Clone of Master of Orion 2

A Python clone of Master of Orion II for Linux that uses the original game's data files; not yet playable.

Platforms:Linux

Stars17

Updated9 years ago

LicenseGPL-2.0

Release2015

Genre: Turn-Based Strategy

Theme: Sci-Fi

Halted

Rusty Bird

Clone of Flappy Bird

A weekend-project Flappy Bird clone in Rust with Bevy, playable in the browser, using open third-party art assets.

Platforms:Web

Stars17

Updated1 year ago

LicenseUnknown

Release2024

Genre: Arcade

Theme: —

People are curious about clones of...

Games you know, and the open-source projects that recreate them.

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Minecraft

2009Action

The block-building sandbox that reshaped an entire genre — open-source clones range from full Java reimplementations to engines built from scratch.

41 clones to play

Doom

1993FPS

The 1993 shooter that defined the genre and sparked a modding culture still alive today — its source release made it one of gaming's most-cloned engines.

40 clones to play

Quake

1996FPS

id Software's fully-3D follow-up to Doom — its GPL-released source (QuakeC included) made it one of the most forked engines in open-source gaming.

20 clones to play

Super Mario

1985Platform

The NES platformer that made side-scrolling mainstream — open-source engines recreate its physics and level format down to the pixel.

20 clones to play

Legend of Zelda - A Link to the Past

1991Action

The SNES classic that set the template for top-down action-adventure — its engine and tile format have been reverse-engineered many times over.

17 clones to play

Diablo II

2000RPG

Blizzard North's dungeon-crawler that defined the ARPG genre — reverse-engineered projects like OpenDiablo2 rebuild it from the original assets up.

6 clones to play

Grand Theft Auto

1998Action

The open-world franchise everyone's talking about again — its early file formats and engines have been reverse-engineered for years, well before GTA 6 hype.

3 clones to play

StarCraft

1998Real-Time Strategy

Blizzard's 1998 real-time strategy game that helped build esports as we know it — open-source engines keep its campaign and balance playable today.

4 clones to play

Sonic the Hedgehog

1991Platform

Sega's answer to Mario — its physics and level format have been painstakingly reverse-engineered by fan projects for decades.

7 clones to play