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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TetrisNESDisasm

Clone of Tetris (NES)

A disassembly of the original NES Tetris ROM that rebuilds it byte-for-byte from documented assembly source.

Platforms:NES

Stars107

Updated2 years ago

LicenseUnknown

Release2019

Genre: Puzzle

Theme: —

Halted

rottexpr

Clone of Rise of the Triad

An SDL2-based Rise of the Triad source port with new gameplay modes and high-res support.

Platforms:Windows

Stars107

Updated3 years ago

LicenseGPL-2.0

Release2017

Genre: FPS

Theme: —

Sporadic

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stfdecomp

Clone of Sonic the Fighters

A work-in-progress decompilation of Sega's 1996 arcade fighter Sonic the Fighters, requiring the original ROM files to build.

Platforms:Arcade

Stars107

Updated7 months ago

LicenseUnknown

Release2024

Genre: Fighting

Theme: —

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superbomberman

Clone of Super Bomberman

A disassembly and rebuildable build system for SNES Super Bomberman, requiring the original ROM to compile.

Platforms:SNES

Stars107

Updated2 months ago

LicenseUnknown

Release2015

Genre: Action

Theme: —

Active

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Wave Race 64

Clone of Wave Race 64

An early, ~66%-complete decompilation of Wave Race 64 for the Nintendo 64, requiring your own USA ROM.

Platforms:N64

Stars106

Updated18 days ago

LicenseUnknown

Release2024

Genre: Racing

Theme: —

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Cart Life

Clone of Cart Life

Richard Hofmeier's original Cart Life source code, released free after leaving Steam, built with Adventure Game Studio.

Platforms:Windows

Stars105

Updated5 years ago

LicenseUnknown

Release2015

Genre: Simulation

Theme: —

Sporadic

Spherical Snake

Clone of Snake

A browser-based Snake variant played on the surface of a sphere instead of a flat grid.

Platforms:Web

Stars105

Updated8 months ago

LicenseMIT

Release2025

Genre: Arcade

Theme: —

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The Butterfly Effect

Clone of The Incredible Machine

An open-source physics puzzle game where you combine mechanical objects to reach a goal; playable beta with over 80 levels.

Platforms:WindowsLinuxOSX

Stars105

Updated5 years ago

LicenseGPL-2.0

Release2015

Genre: Puzzle

Theme: —

Archived

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Toontown Online

Clone of Toontown Online

A collection of released source code for Toontown Online, Disney's cartoon MMORPG that ran from 2003 to 2013.

Platforms:Windows

Stars105

Updated6 years ago

LicenseUnknown

Release2020

Genre: MMORPG

Theme: —

Sporadic

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stuntcarremake

Clone of Stunt Car Racer

A Linux/OpenPandora port of Windows' Stunt Car Racer Remake, with an Emscripten browser build and Windows-only dynamic scaling.

Platforms:WebLinux

Stars105

Updated8 months ago

LicenseUnknown

Release2015

Genre: Racing

Theme: —

Active

Abbaye-SDL

Clone of l'Abbaye des Morts

A cross-platform C/SDL2 port of l'Abbaye des Morts, extending the Windows-only original to Linux, macOS, and several handhelds.

Platforms:LinuxOSXWii

Stars104

Updated2 months ago

LicenseGPL-3.0

Release2015

Genre: Adventure

Theme: —

Sporadic

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FF Disassembly

Clone of Final Fantasy

A fully commented, reassemblable disassembly of the US NES Final Fantasy, documenting bugs found in the original game.

Platforms:NES

Stars104

Updated3 months ago

LicenseUnknown

Release2016

Genre: RPG

Theme: Fantasy

Halted

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GloomAmiga

Clone of Gloom

The official source code for Gloom, an Amiga first-person shooter by Black Magic, released as-is with no completeness guarantee.

Platforms:Amiga

Stars104

Updated9 years ago

LicenseUnknown

Release2017

Genre: FPS

Theme: Sci-Fi

Active

Ikemen-Plus-Ultra

Clone of M.U.G.E.N

An actively developed unofficial Ikemen fighting-engine branch offering software rendering for very old hardware, still a public dev build.

Platforms:WindowsLinuxAndroid

Stars104

Updated1 month ago

LicenseUnknown

Release2022

Genre: Fighting

Theme: —

Halted

Javascript Tower Platformer

Clone of Nebulus

An HTML5 homage to Nebulus's rotating-tower platforming, MIT-licensed but development halted at a semi-complete stage.

Platforms:Web

Stars104

Updated1 year ago

LicenseMIT

Release2013

Genre: Arcade

Theme: —

Archived

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SpaceInvaders (2014)

Clone of Space Invaders

A modular JavaScript/Phaser remake of the classic Space Invaders example, organized with RequireJS.

Platforms:Web

Stars104

Updated1 year ago

LicenseMIT

Release2014

Genre: Arcade

Theme: —

Active

YKnytt

Clone of Knytt Stories

An open-source Godot/C# remake of the platformer Knytt Stories, with 1,200+ downloadable community levels.

Platforms:WebWindowsLinux

Stars104

Updated1 month ago

LicenseUnknown

Release2020

Genre: Platform

Theme: —

Sporadic

Nanosaur II: Hatchling

Clone of Nanosaur 2

Pangea's 2004 Mac game Nanosaur II, ported with permission to modern macOS, Windows and Linux.

Platforms:WindowsLinuxOSX

Stars103

Updated3 months ago

LicenseUnknown

Release2022

Genre: TPS

Theme: Prehistoric

Active

Free Allegiance

Clone of Allegiance

Free Allegiance is an open-source project built with Visual Studio and DirectX, split into client, server, lobby, and logic components.

Platforms:Windows

Stars102

Updated14 days ago

LicenseMIT

Release2017

Genre: Action

Theme: Sci-Fi

Active

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Magic Carpet 2 HD

Clone of Magic Carpet 2

A C/C++ reverse-engineering of Magic Carpet 2 with HD rendering and WASD controls; the full campaign is playable on Windows and Linux.

Platforms:WindowsLinux

Stars102

Updated14 days ago

LicenseGPL-3.0

Release2020

Genre: FPS

Theme: Fantasy

Active

EDGE-Classic

Clone of Doom

A Doom source port reviving the older EDGE 1.35 engine with modern visuals, easy modding, and support for Heretic and other IWADs.

Platforms:Windows

Stars101

Updated26 days ago

LicenseGPL-3.0

Release2021

Genre: FPS

Theme: Sci-Fi

Sporadic

Jactorio

Clone of Factorio

A personal from-scratch attempt to recreate Factorio's gameplay in C++, built with CMake and now developed only sporadically.

Platforms:Windows

Stars101

Updated6 months ago

LicenseUnknown

Release2019

Genre: Simulation

Theme: —

Halted

Minima

Clone of Ultima III: Exodus

A fully winnable PICO-8 adventure RPG made as a tribute to the 8-bit Commodore Ultima games.

Platforms:WindowsLinuxOSX

Stars101

Updated4 years ago

LicenseGPL-3.0

Release2018

Genre: RPG

Theme: Fantasy

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PCS_AppleII

Clone of Pinball Construction Set

Source code for the Apple II version of Bill Budge's Pinball Construction Set.

Platforms:Apple II

Stars101

Updated13 years ago

LicenseMIT

Release2013

Genre: Action

Theme: —

People are curious about clones of...

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

View all originals

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