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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VCMI

Clone of Heroes of Might and Magic III

An open-source recreation of the Heroes of Might and Magic III engine with new features, full mod support, and mobile ports.

Platforms:WindowsLinuxOSX

Stars5,863

Updated13 days ago

LicenseGPL-2.0

Release2014

Genre: Turn-Based Strategy

Theme: —

Active

No preview

The Legend of Zelda: Ocarina of Time

Clone of The Legend of Zelda: Ocarina of Time

A work-in-progress decompilation of Ocarina of Time, reconstructed purely from analysis of the game across many original ROM revisions.

Platforms:N64

Stars5,516

Updated12 days ago

LicenseUnknown

Release2020

Genre: Action

Theme: Fantasy

Active

RuneLite

Clone of Old School RuneScape

A free, open-source client for Old School RuneScape that adds a plugin system for extending client functionality.

Platforms:WindowsLinuxOSX

Stars5,455

Updated11 days ago

LicenseBSD-2-Clause

Release2016

Genre: MMORPG

Theme: Fantasy

Sporadic

No preview

Cuberite

Clone of Minecraft

Cuberite is a from-scratch, Minecraft-compatible multiplayer server in C++, extensible via a Lua plugin API, for protocols 1.8-1.12.2.

Platforms:WindowsLinuxOSX

Stars5,446

Updated5 months ago

LicenseUnknown

Release2013

Genre: Action

Theme: Fantasy

Active

No preview

Ship of Harkinian

Clone of The Legend of Zelda: Ocarina of Time

A PC/console port of Ocarina of Time built on the OOT decompilation project, adding save states and custom assets.

Platforms:WindowsLinuxOSX

Stars5,396

Updated11 days ago

LicenseUnknown

Release2022

Genre: Action

Theme: Fantasy

Halted

No preview

DOOM-3-BFG

Clone of Doom 3

id Software's Doom 3 BFG Edition GPL source release, code only, omitting features like Steam integration and Bink video playback.

Platforms:Windows

Stars5,375

Updated2 years ago

LicenseGPL-3.0

Release2012

Genre: FPS

Theme: Sci-Fi

Active

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SuperTuxKart

Clone of Mario Kart

A free, open-source kart racer in the spirit of Mario Kart, with its own original characters and assets.

Platforms:WindowsLinuxOSX

Stars5,352

Updated11 days ago

LicenseUnknown

Release2014

Genre: Racing

Theme: —

Active

The Powder Toy

Clone of Powder Game

A free, open-source 2D physics sandbox simulating pressure, heat, gravity, and countless material interactions.

Platforms:WindowsLinuxOSX

Stars5,314

Updated17 days ago

LicenseGPL-3.0

Release2010

Genre: Simulation

Theme: —

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Dusklight

Clone of The Legend of Zelda: Twilight Princess

Dusklight is a reverse-engineered reimplementation of Twilight Princess built on the community decompilation, adding new enhancements.

Platforms:WindowsLinuxOSX

Stars5,282

Updated11 days ago

LicenseCC0-1.0

Release2025

Genre: Action

Theme: —

Halted

OpenSC2K

Clone of SimCity 2000

An unfinished browser-based SimCity 2000 remake in JavaScript and Phaser 3 that can import and view cities but not simulate them.

Platforms:Web

Stars5,110

Updated6 years ago

LicenseGPL-3.0

Release2018

Genre: Simulation

Theme: —

Active

OpenLara

Clone of Tomb Raider

An open-source engine for the classic Tomb Raider games, with a browser demo and standalone builds.

Platforms:Web

Stars5,098

Updated2 months ago

LicenseBSD-2-Clause

Release2016

Genre: Platform

Theme: —

Active

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UnleashedRecomp

Clone of Sonic Unleashed

An unofficial static-recompilation PC port of Xbox 360's Sonic Unleashed, requiring your own legally owned copy of the game.

Platforms:WindowsLinux

Stars5,055

Updated2 months ago

LicenseGPL-3.0

Release2024

Genre: Platform

Theme: —

Active

No preview

Pokémon Red and Blue

Clone of Pokémon Red, Blue, and Yellow

A disassembly that rebuilds Pokémon Red and Blue's Game Boy ROMs entirely from source code.

Platforms:Game Boy

Stars4,924

Updated1 month ago

LicenseUnknown

Release2013

Genre: RPG

Theme: Fantasy

Halted

No preview

zelda3

Clone of Legend of Zelda - A Link to the Past

A from-scratch C reimplementation of A Link to the Past, playable start to finish with added widescreen support.

Platforms:WindowsLinuxOSX

Stars4,768

Updated2 years ago

LicenseUnknown

Release2022

Genre: Action

Theme: —

Halted

No preview

SpaceCadetPinball

Clone of Full Tilt! Pinball

A reverse-engineered, decompiled rebuild of Windows' 3D Pinball: Space Cadet, running on Windows, Linux, and macOS.

Platforms:WebWindowsOSX

Stars4,659

Updated2 years ago

LicenseMIT

Release2021

Genre: Arcade

Theme: —

Halted

No preview

Doom 3

Clone of Doom 3

id Software's Doom 3 GPL source release, code only, buildable on Windows, Linux, and macOS but omitting the Carmack's Reverse technique.

Platforms:WindowsLinuxOSX

Stars4,635

Updated4 years ago

LicenseGPL-3.0

Release2011

Genre: FPS

Theme: Sci-Fi

Active

CorsixTH

Clone of Theme Hospital

CorsixTH is a reimplementation of Theme Hospital for modern systems, adding 4K support, a map editor, and 20+ language translations.

Platforms:WindowsLinuxOSX

Stars4,558

Updated11 days ago

LicenseUnknown

Release2013

Genre: Strategy

Theme: Management

Halted

No preview

minecraft-weekend

Clone of Minecraft

A Minecraft clone first built in 48 hours, with infinite terrain, biomes, a day/night cycle and RGB lighting.

Platforms:Linux

Stars4,416

Updated2 years ago

LicenseMIT

Release2020

Genre: Action

Theme: Fantasy

Active

Beyond All Reason

Clone of Supreme Commander

Beyond All Reason is an open-source real-time strategy game built on the Recoil engine, combining a lobby launcher with Lua-based game code.

Platforms:WindowsLinux

Stars4,207

Updated11 days ago

LicenseUnknown

Release2019

Genre: Real-Time Strategy

Theme: Sci-Fi

Halted

Spring

Clone of Total Annihilation

An open-source real-time strategy engine descended from Total Annihilation, for Windows, Linux, and macOS.

Platforms:WindowsLinuxOSX

Stars3,997

Updated2 years ago

LicenseUnknown

Release2008

Genre: Real-Time Strategy

Theme: Sci-Fi

Active

No preview

Warzone 2100

Clone of Warzone 2100

Warzone 2100, GPL-licensed since 2004, is a free open-source 3D RTS with campaign, online multiplayer, and JavaScript modding.

Platforms:WindowsLinuxOSX

Stars3,954

Updated11 days ago

LicenseGPL-2.0

Release2010

Genre: Real-Time Strategy

Theme: Sci-Fi

Halted

No preview

OpenDuelyst

Clone of Duelyst

The CC0 source release of Duelyst, the card/tactics game shut down in 2020, playable in a browser via a self-hosted server.

Platforms:Web

Stars3,903

Updated1 year ago

LicenseCC0-1.0

Release2022

Genre: Card Game

Theme: —

Active

Terasology

Clone of Minecraft

An open-source voxel platform that grew from a Minecraft-inspired tech demo into a moddable game engine.

Platforms:WindowsLinuxOSX

Stars3,897

Updated28 days ago

LicenseApache-2.0

Release2011

Genre: Action

Theme: Fantasy

Active

Space Station 14

Clone of Space Station 13

An open-source remake of SS13 built on a custom C# engine, with heavily moddable community servers.

Platforms:WindowsLinuxOSX

Stars3,798

Updated11 days ago

LicenseMIT

Release2017

Genre: RPG

Theme: Sci-Fi

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