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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Wolf3D-iOS

Clone of Spear of Destiny

Platforms:iOS

Stars539

Updated4 years ago

LicenseGPL2*

Release2012

Genre: FPS

Theme: —

Active

Ambermoon.net

Clone of Ambermoon

A full C# rewrite of Ambermoon RPG for Windows, Linux, and Mac, bundling the original game plus the fan-made Ambermoon Advanced.

Platforms:WindowsLinuxOSX

Stars535

Updated1 month ago

LicenseGPL-3.0

Release2020

Genre: RPG

Theme: Fantasy

Active

Jagged Alliance 2 Stracciatella

Clone of Jagged Alliance 2

A community-maintained continuation of JA2-Stracciatella, running Jagged Alliance 2 on modern systems using data from an original copy.

Platforms:WindowsLinuxOSX

Stars535

Updated11 days ago

LicenseUnknown

Release2016

Genre: RPG

Theme: Sci-Fi

Active

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Pokémon Platinum

Clone of Pokémon Diamond and Pearl

A work-in-progress decompilation rebuilding Pokémon Platinum's Nintendo DS ROM from source.

Platforms:DS

Stars532

Updated14 days ago

LicenseUnknown

Release2023

Genre: RPG

Theme: Fantasy

Active

Super Mario War

Clone of Super Mario

An open-source SDL multiplayer deathmatch game using Mario-style characters, with online play, a level editor, and 1,000+ maps.

Platforms:WebWindowsLinux

Stars530

Updated11 days ago

LicenseUnknown

Release2015

Genre: Platform

Theme: —

Active

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Pokémon Diamond

Clone of Pokémon Diamond and Pearl

A work-in-progress decompilation of Pokémon Diamond, targeting byte-matching Diamond and Pearl ROM builds.

Platforms:DS

Stars523

Updated16 days ago

LicenseUnknown

Release2020

Genre: RPG

Theme: Fantasy

Active

Severed Chains

Clone of The Legend of Dragoon

A from-scratch Java reimplementation of Legend of Dragoon's engine, with a growing modding API and no known crashes.

Platforms:WindowsLinuxOSX

Stars522

Updated12 days ago

LicenseUnknown

Release2021

Genre: RPG

Theme: Fantasy

Halted

TOMB5

Clone of Tomb Raider Chronicles

An in-progress decompilation of Tomb Raider: Chronicles from debug symbols, requiring the original PlayStation disc.

Platforms:WindowsLinuxPS

Stars519

Updated4 years ago

LicenseMIT

Release2017

Genre: Action

Theme: —

Halted

Habitat

Clone of Habitat

The original Habitat source and design material — Commodore 64 client, Stratus VOS server, and tools — with the server marked incomplete.

Platforms:C64

Stars517

Updated8 years ago

LicenseMIT

Release2016

Genre: MMORPG

Theme: —

Active

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OGame Vue TS

Clone of OGame

A single-player browser space strategy game inspired by OGame, built with Vue 3 and TypeScript, with all data stored locally.

Platforms:Web

Stars516

Updated2 months ago

LicenseUnknown

Release2025

Genre: Turn-Based Strategy

Theme: Sci-Fi

Active

Meridian 59

Clone of Meridian 59

The official source release of the 1996 MMORPG Meridian 59, with client, server, scripting compiler and room editor.

Platforms:Windows

Stars513

Updated13 days ago

LicenseUnknown

Release2012

Genre: RPG

Theme: —

Halted

Bugdom

Clone of Bugdom

A modern source port of Bugdom, re-released with Pangea Software's permission, adding comforts and bug fixes without design changes.

Platforms:WindowsLinuxOSX

Stars506

Updated1 year ago

LicenseUnknown

Release2020

Genre: Platform

Theme: —

Halted

OpenClaw

Clone of Claw

A from-scratch C++ reimplementation of Monolith's 1997 platformer Captain Claw that runs on the original asset archive.

Platforms:WebWindowsLinux

Stars505

Updated3 years ago

LicenseGPL-3.0

Release2017

Genre: Platform

Theme: —

Active

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UltraStar Play

Clone of SingStar

A free, open-source Unity-based singing game with local/online multiplayer, builds for desktop and Android.

Platforms:WindowsLinuxOSX

Stars505

Updated12 days ago

LicenseMIT

Release2017

Genre: Rhythm

Theme: —

Sporadic

OpenDungeons

Clone of Dungeon Keeper

An open-source dungeon-building RTS inspired by Dungeon Keeper, now mostly archived in favour of the OpenDungeonsPlus fork.

Platforms:WindowsLinux

Stars503

Updated11 months ago

LicenseUnknown

Release2014

Genre: Simulation

Theme: Horror

Halted

REGoth

Clone of Gothic

REGoth is an open-source reimplementation of Gothic and Gothic II's zEngine, for playing the RPGs on modern Windows and Linux.

Platforms:WindowsLinux

Stars502

Updated6 years ago

LicenseMIT

Release2019

Genre: RPG

Theme: —

Active

No preview

OpenKeeper

Clone of Dungeon Keeper 2

A Java/jMonkeyEngine remake of Dungeon Keeper II aiming for a faithful version 1.7 using the original game assets.

Platforms:None

Stars499

Updated16 days ago

LicenseGPL-3.0

Release2014

Genre: Simulation

Theme: —

Active

Akhenaten

Clone of Pharaoh

A reimplementation of the Pharaoh game engine for modern systems, forked from the Julius/Augustus project and retargeted at Pharaoh.

Platforms:WebWindowsLinux

Stars496

Updated12 days ago

LicenseAGPL-3.0

Release2023

Genre: Simulation

Theme: Ancient History

Sporadic

Simitone

Clone of The Sims

A C# Windows frontend for The Sims, built on FreeSO, adding 3D visuals and a modern UI to the original 2D game.

Platforms:Windows

Stars492

Updated11 months ago

LicenseUnknown

Release2017

Genre: Simulation

Theme: Management

Active

BBC Micro cassette Elite

Clone of Elite

The cassette version of Ian Bell and David Braben's 1984 Elite source code, reformatted and documented by Mark Moxon, not reconstructed.

Platforms:BBC Micro

Stars487

Updated15 days ago

LicenseUnknown

Release2020

Genre: Action

Theme: Sci-Fi

Active

FreeSpace 2 Source Code Project

Clone of FreeSpace 2

FS2 Open, the FreeSpace 2 Source Code Project, is an open-source build of FreeSpace 2 targeting Windows, Linux, and macOS.

Platforms:WindowsLinuxOSX

Stars487

Updated12 days ago

LicenseUnknown

Release2013

Genre: Action

Theme: Sci-Fi

Active

Vange-rs

Clone of Vangers

A Rust reimplementation of the Vangers engine using wgpu for native hardware-accelerated, and optionally voxel ray-traced, rendering.

Platforms:Web

Stars486

Updated11 days ago

LicenseApache-2.0

Release2016

Genre: Racing

Theme: Sci-Fi

Halted

donut

Clone of The Simpsons: Hit & Run

An open-source C++ reimplementation of The Simpsons: Hit & Run using modern OpenGL, requiring the original game's asset files.

Platforms:WindowsLinux

Stars481

Updated2 years ago

LicenseGPL-3.0

Release2019

Genre: Action

Theme: Comedy

Active

No preview

OpenOMF

Clone of One Must Fall: 2097

An open-source remake of the fighting game One Must Fall 2097 with modern networking across Windows, Linux and macOS.

Platforms:WindowsLinuxOSX

Stars478

Updated19 days ago

LicenseMIT

Release2013

Genre: Fighting

Theme: Sci-Fi

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

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1993FPS

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Quake

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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.

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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.

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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.

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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