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.

Arcade Puzzle Platformer RPG Strategy FPS All genres →

New clones and notable updates, roughly monthly. No spam, unsubscribe anytime.

Active

CrossUO: Ultima Online

Clone of Ultima Online

A cross-platform, actively developed client for Ultima Online, running on Windows, Linux, and macOS.

Platforms:WindowsLinuxOSX

Stars177

Updated19 days ago

LicenseAGPL-3.0

Release2019

Genre: MMORPG

Theme: —

Active

KaM Remake

Clone of Knights and Merchants

A modernized remake of Knights and Merchants adding 12-player multiplayer, reworked AI, and scripting support for custom maps.

Platforms:WindowsLinuxOSX

Stars176

Updated12 days ago

LicenseAGPL-3.0

Release2016

Genre: Real-Time Strategy

Theme: Medieval

Archived

No preview

Chronoshift

Clone of Command & Conquer: Red Alert

An open-source reimplementation of Command & Conquer: Red Alert for Windows, still relying on the original game's binary.

Platforms:Windows

Stars175

Updated6 years ago

LicenseGPL-2.0

Release2018

Genre: Real-Time Strategy

Theme: Modern Military

Halted

Open Horizon

Clone of Ace Combat: Assault Horizon

An open-source reimplementation of Ace Combat: Assault Horizon's rendering and physics, without Dog Fight Mode.

Platforms:WindowsLinuxOSX

Stars175

Updated4 years ago

LicenseMIT

Release2014

Genre: Action

Theme: Modern Military

Halted

No preview

OpenMC2

Clone of Midnight Club II

An abandoned bottom-up rewrite of Midnight Club 2 that runs on top of the original game binary.

Platforms:Windows

Stars174

Updated3 years ago

LicenseGPL-3.0

Release2016

Genre: Racing

Theme: —

Halted

Legacy of Kain: Soul Reaver Decompile

Clone of Legacy of Kain: Soul Reaver

A decompilation of the original PlayStation Soul Reaver, ported to modern platforms including Windows, Linux, and consoles.

Platforms:WebWindowsLinux

Stars173

Updated2 years ago

LicenseUnlicense

Release2022

Genre: Action

Theme: Fantasy

Sporadic

No preview

Raiders2600

Clone of Raiders of the Lost Ark

A fully reverse-engineered, rebuildable-from-source disassembly of the 1982 Atari 2600 game Raiders of the Lost Ark.

Platforms:Atari

Stars173

Updated6 months ago

LicenseUnknown

Release2024

Genre: Adventure

Theme: —

Sporadic

No preview

Wipeout-Rewrite port for Dreamcast

Clone of Wipeout

A Dreamcast port of the wipEout Rewrite PSX racing remake, feature-complete and near-60 FPS on real hardware.

Platforms:Dreamcast

Stars172

Updated5 months ago

LicenseUnknown

Release2025

Genre: Racing

Theme: Sci-Fi

Sporadic

No preview

BattleCity

Clone of Battle City

A JavaScript and HTML5 remake of the Famicom game Battle City, built with test-driven development, playable in a browser.

Platforms:Web

Stars171

Updated3 months ago

LicenseMIT

Release2012

Genre: Arcade

Theme: —

Halted

Cro-Mag Rally

Clone of Cro-Mag Rally

An officially permitted enhanced port of the original Mac OS 9 Cro-Mag Rally, with bug fixes for Linux, Windows, and macOS.

Platforms:WindowsLinuxOSX

Stars171

Updated1 year ago

LicenseUnknown

Release2022

Genre: Racing

Theme: Prehistoric

Halted

Frozen Bubble

Clone of Puzzle Bobble

A Perl implementation of Frozen Bubble, distributed as a CPAN module and built using Pango and SDL for its graphics.

Platforms:Linux

Stars171

Updated2 years ago

LicenseGPL-2.0

Release2009

Genre: Puzzle

Theme: —

Halted

Javascript Gauntlet

Clone of Gauntlet

An HTML5 canvas remake of Gauntlet released under the MIT license, supporting modern browsers; development has halted.

Platforms:Web

Stars171

Updated1 year ago

LicenseMIT

Release2013

Genre: Action

Theme: Fantasy

Archived

OpenHoW

Clone of Hogs of War

An archived, unfinished open-source Hogs of War reimplementation, shelved after an official remaster was announced.

Platforms:WindowsLinux

Stars170

Updated3 years ago

LicenseGPL-3.0

Release2017

Genre: Turn-Based Strategy

Theme: —

Halted

openDarkEngine

Clone of Thief

An unfinished open-source engine for Looking Glass's DarkEngine games such as Thief, able to display levels but not yet playable.

Platforms:WindowsLinux

Stars170

Updated8 years ago

LicenseGPL-2.0

Release2014

Genre: Action

Theme: Crime

Sporadic

Freeserf.net

Clone of The Settlers

A C# port of Freeserf, an authentic remake of The Settlers I, requiring the original game's data files and adding new AI.

Platforms:WindowsLinux

Stars169

Updated3 months ago

LicenseGPL-3.0

Release2018

Genre: Real-Time Strategy

Theme: Medieval

Halted

No preview

PCS_Atari800

Clone of Pinball Construction Set

MIT-licensed source code for the Atari 800 version of Pinball Construction Set.

Platforms:Atari

Stars169

Updated13 years ago

LicenseMIT

Release2013

Genre: Action

Theme: —

Active

Enigma

Clone of Oxyd

A puzzle game where you guide a marble to uncover matching Oxyd stones across 1,000+ levels, for Windows, macOS, and Unix.

Platforms:WindowsLinuxOSX

Stars168

Updated14 days ago

LicenseGPL-2.0

Release2015

Genre: Puzzle

Theme: —

Active

Solarus

Clone of Legend of Zelda - A Link to the Past

An open-source 2D C++ engine for Lua-scripted action-RPGs, designed with games like A Link to the Past in mind.

Platforms:WindowsLinuxOSX

Stars168

Updated9 days ago

Licensegpl-3.0

Release2018

Genre: Action

Theme: —

Active

No preview

Wii Sports

Clone of Wii Sports

An in-progress decompilation of Wii Sports (2006) supporting only the US Revision 1 release, requiring an original game copy.

Platforms:Wii

Stars168

Updated15 days ago

LicenseCC0-1.0

Release2020

Genre: Sports

Theme: —

Active

Abuse (Xenoveritas)

Clone of Abuse

An actively developed fork of Abuse's SDL port, rebuilt on SDL2 and CMake with fullscreen support and other enhancements.

Platforms:WindowsLinuxOSX

Stars167

Updated27 days ago

LicenseUnknown

Release2014

Genre: Action

Theme: Horror

Sporadic

Citadel

Clone of System Shock

An in-progress fan remake of System Shock replacing its 2D sprites with 3D models, in final testing for Windows, macOS, and Linux.

Platforms:WindowsLinuxOSX

Stars167

Updated6 months ago

LicenseUnknown

Release2015

Genre: RPG

Theme: —

Halted

No preview

OpenC1

Clone of Carmageddon

Platforms:Windows

Stars167

Updated11 years ago

LicenseUnknown

Release2014

Genre: Racing

Theme: —

Sporadic

UAlbion

Clone of Albion

A from-scratch, .NET 9 remake of the 1995 RPG Albion that requires the original game's data files to run.

Platforms:WindowsLinux

Stars167

Updated4 months ago

LicenseMIT

Release2020

Genre: RPG

Theme: Sci-Fi

Halted

rlvm

Clone of RealLive

A free GPL reimplementation of the RealLive visual novel engine for Linux/macOS, playing Key-label games like CLANNAD and Air.

Platforms:LinuxOSX

Stars167

Updated2 years ago

LicenseGPL-3.0

Release2008

Genre: —

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