Free & Open Source Clones & Decompilations of Retro Games

4,049 open-source clones, remakes and decompilations of 2,426 retro games — real source code you can read, fork, and play today, not just a free download.

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G-Police (original game, not this project)

Original game image

G-Police Recompilation

Clone of G-Police

A PSXRecomp-based recompilation of G-Police, currently a 0.1.0 release candidate that needs your own disc and BIOS.

Stars1

Updated1 month ago

LicenseUnknown

Release2026

Genre: first-person shooter

Theme: —

Halted

No preview

GeoffCapes

Clone of Geoff Capes Strongman

The original 1980s BBC Micro source code, written in 6502 assembly, released as a tribute after strongman Geoff Capes's 2024 death.

Platforms:BBC Micro

Stars1

Updated2 years ago

LicenseUnknown

Release2024

Genre: Sports

Theme: —

Halted

Groove Board

Clone of Dance Dance Revolution

A music rhythm game demo written in Perl using SDL, similar to Dance Dance Revolution and StepMania.

Platforms:None

Stars1

Updated15 years ago

LicenseUnknown

Release2011

Genre: Rhythm

Theme: —

Archived

HTML5-Breakout

Clone of Breakout

A browser-based HTML5 implementation of Breakout with a welcome menu scene, supporting one-player or two-player turn-based games.

Platforms:Web

Stars1

Updated8 years ago

LicenseMIT

Release2017

Genre: Arcade

Theme: —

Archived

HTML5-Pong

Clone of Pong

A browser-based HTML5 implementation of Pong for two human players, split across welcome, gameplay court, and end-game results scenes.

Platforms:Web

Stars1

Updated8 years ago

LicenseMIT

Release2017

Genre: Arcade

Theme: —

Active

No preview

Hazard 1998

Clone of Hazard

Hazard RevEngE is an educational project to build a reverse-engineered engine for Hazard.

Stars1

Updated2 months ago

LicenseUnknown

Release2026

Genre: —

Theme: —

Halted

Hexen II for Dreamcast

Clone of Hexen II

A port of the Hexen II engine to the Sega Dreamcast; only the OpenGL renderer works, since the x86-only software renderer isn't supported.

Platforms:Dreamcast

Stars1

Updated4 years ago

LicenseGPL-2.0

Release2022

Genre: FPS

Theme: Ancient History

Active

HoverRace (original game, not this project)

Original game image

HoverX

Clone of HoverRace

A hover-racing game built with SDL2, OpenGL/GLEW, and ENet networking, supporting single-player races and networked multiplayer.

Platforms:Windows

Stars1

Updated4 months ago

LicenseGPL-3.0

Release2023

Genre: Racing

Theme: —

Sporadic

No preview

How to be a Complete Bastard disassembly

Clone of How to Be a Complete Bastard

A disassembly of the ZX Spectrum version of How to Be a Complete Bastard, produced with SkoolKit and published in annotated hex and decimal.

Platforms:ZX Spectrum

Stars1

Updated8 months ago

LicenseGPL-3.0

Release2026

Genre: Adventure

Theme: Comedy

Halted

No preview

JOverflow

Clone of Overflow

A remake of Overflow with an empty README and no store description, currently marked unplayable with development halted.

Platforms:None

Stars1

Updated15 years ago

LicenseUnknown

Release2012

Genre: Puzzle

Theme: —

Halted

Jewel Thief

Clone of Jewel Thief

An Android re-implementation of Jewel Thief built with libGDX, reusing the original game's sprites and backgrounds.

Platforms:Android

Stars1

Updated9 years ago

LicenseGPL-3.0

Release2017

Genre: Action

Theme: —

Halted

Knytt Stories DS

Clone of Knytt Stories

Platforms:DS

Stars1

Updated10 years ago

LicenseBSD*

Release2016

Genre: Platform

Theme: —

Sporadic

LBA2 IdaJS

Clone of Little Big Adventure 2

A JavaScript scripting layer built on the LBA2 Ida Edition engine, letting creators script gameplay and build mods in a modern language.

Platforms:WindowsLinuxOSX

Stars1

Updated8 months ago

LicenseGPL-2.0

Release2025

Genre: Action

Theme: Fantasy

Halted

Mario Sports Mix Decompilation

Clone of Mario Sports Mix

A work-in-progress decompilation of Mario Sports Mix; you supply your own copy of the game.

Stars1

Updated1 year ago

LicenseCC0-1.0

Release2025

Genre: Sports

Theme: —

Halted

Master Ball

Clone of Breakout

A browser-based Breakout-style game built with HTML5 Canvas and JavaScript, bouncing a ball to clear randomly generated blocks.

Platforms:Web

Stars1

Updated2 years ago

LicenseUnlicense

Release2024

Genre: Arcade

Theme: —

Sporadic

MasterPiece Assembly

Clone of Acid Drop

A small x86_64 assembly language demo for Linux, built with CMake.

Platforms:Linux

Stars1

Updated8 months ago

LicenseGPL-3.0

Release2025

Genre: Puzzle

Theme: —

Halted

MasterPiece3D.JavaScript

Clone of Acid Drop

A WebGL/JavaScript falling-block game where players rotate and move blocks to match colors on a grid, playable in any WebGL-capable browser.

Platforms:Web

Stars1

Updated2 years ago

LicenseUnlicense

Release2024

Genre: Puzzle

Theme: —

Halted

Mayhem 2

Clone of Mayhem

A 2-4 player multiplayer flight shooter built on devpack's PC port of the original Amiga Mayhem, later migrated to the Allegro 5 library.

Platforms:WindowsRaspberry Pi

Stars1

Updated7 years ago

LicenseBSD-3-Clause

Release2016

Genre: Shooter

Theme: —

Active

Metal Slug X Recompilation

Clone of Metal Slug X

A static recompilation of Metal Slug X built on psxrecomp; you must own the original game.

Stars1

Updated1 month ago

LicenseGPL-3.0

Release2026

Genre: Shooter

Theme: —

Sporadic

Moon Miner

Clone of Lunar Lander

A retro-styled arcade game written in CircuitPython for the Adafruit Fruit Jam.

Platforms:Raspberry Pi

Stars1

Updated10 months ago

LicenseGPL-3.0

Release2025

Genre: Simulation

Theme: —

Halted

NiceGUI Minesweeper

Clone of Minesweeper

Classic Minesweeper built in Python with the NiceGUI framework, installable from PyPI and played in the browser.

Platforms:Web

Stars1

Updated1 year ago

LicenseApache-2.0

Release2025

Genre: Puzzle

Theme: —

Active

Oddworld: Abe's Oddysee Recompilation

Clone of Oddworld: Abe's Oddysee

A static recompilation of Oddworld: Abe's Oddysee (USA region, two players) built on psxrecomp and recomp-ui, recompiled for modern systems.

Stars1

Updated1 month ago

LicenseUnknown

Release2026

Genre: Platform

Theme: —

Halted

No preview

On The Run: The Getaway Decompilation

A decomp and asset rip of Miniclip's On The Run: The Getaway, developed by Silent Bay Studios.

Stars1

Updated2 years ago

LicenseUnknown

Release2023

Genre: —

Theme: —

Halted

No preview

OpenArena (gladiator management game)

Clone of Areena 5

An open-source Java gladiator management game, aiming to become a fully reimagined Areena 5.

Platforms:None

Stars1

Updated1 year ago

Licensegpl-3.0

Release2022

Genre: Simulation

Theme: Fantasy

* Unverified license (our read or source dataset) — check the repository itself.

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

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Minecraft

2009Action

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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.

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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.

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Super Mario

1985Platform

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

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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.

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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 III

2001Action

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.

4 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.

5 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.

8 clones to play