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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Outpost HD

Clone of Outpost

A C++ redesign of Sierra's 1994 colony game Outpost, keeping its core concepts in a more responsive game.

Platforms:Windows

Stars143

Updated1 month ago

LicenseBSD-3-Clause

Release2018

Genre: Simulation

Theme: Sci-Fi

Halted

Strife: Veteran Edition

Clone of Strife

Night Dive Studios' 2020 GPL source release of Strife: Veteran Edition, the official remaster of 1996's Strife.

Platforms:WindowsLinuxOSX

Stars143

Updated4 years ago

LicenseGPL-2.0

Release2014

Genre: Action

Theme: Post-Apocalyptic

Archived

No preview

JSettlers

Clone of The Settlers III

A Java remake of The Settlers III for Windows, Linux, and Android, left in alpha status with development now archived.

Platforms:WindowsLinuxAndroid

Stars142

Updated9 months ago

LicenseMIT

Release2018

Genre: Real-Time Strategy

Theme: Ancient History

Halted

Mininim

Clone of Prince of Persia

MININIM, an advanced Prince of Persia engine written in C with Allegro 5.

Platforms:WindowsLinux

Stars142

Updated5 years ago

LicenseGPL-3.0

Release2015

Genre: Platform

Theme: —

Active

OpenMB

Clone of Mount & Blade

An open-source C# role-playing engine for the Mount & Blade series, built on Ogre3D with mod and Mod.io support.

Platforms:None

Stars142

Updated2 months ago

LicenseGPL-3.0

Release2016

Genre: Action

Theme: Medieval

Active

No preview

Pokémon Pinball: Ruby & Sapphire

Clone of Pokémon Pinball: Ruby & Sapphire

A disassembly rebuilding the original Pokémon Pinball: Ruby & Sapphire Game Boy Advance ROM.

Platforms:GBA

Stars142

Updated14 days ago

LicenseUnknown

Release2018

Genre: Action

Theme: Fantasy

Sporadic

JFDuke3D

Clone of Duke Nukem 3D

JFDuke3D is a Duke Nukem 3D source port on the author's own Build engine port, first released in 2003 for Windows, Linux, BSD, and macOS.

Platforms:WindowsOSX

Stars141

Updated8 months ago

LicenseUnknown

Release2010

Genre: FPS

Theme: —

Halted

No preview

OpenYandere

Clone of Yandere Simulator

An unfinished open-source C#/Unity community rewrite of Yandere Simulator.

Platforms:None

Stars141

Updated2 years ago

LicenseGPL-3.0

Release2018

Genre: Action

Theme: Anime

Archived

No preview

Super Mario Bros. X

Clone of Super Mario

The archived source code release for version 1.3 of this fan-made platform game, which includes a custom level editor.

Platforms:None

Stars141

Updated6 years ago

LicenseMIT

Release2020

Genre: Platform

Theme: —

Halted

Q-Gears

Clone of Final Fantasy VII

An open-source engine reimplementing Square's Final Fantasy VII/IX-era RPG engine for modern Windows, Linux, and OSX.

Platforms:WindowsLinuxOSX

Stars140

Updated9 years ago

LicenseGPL-2.0

Release2014

Genre: RPG

Theme: —

Halted

No preview

defender

Clone of Defender

Platforms:Arcade

Stars140

Updated5 years ago

LicenseUnknown

Release2021

Genre: Arcade

Theme: Sci-Fi

Active

F-15 Strike Eagle 2 source code reconstruction

Clone of F-15 Strike Eagle II

A from-scratch reconstruction of F-15 Strike Eagle 2's 1991 DOS source, built via binary analysis, now largely complete and playable.

Platforms:DOS

Stars139

Updated21 days ago

LicenseMIT

Release2024

Genre: Simulation

Theme: —

Halted

No preview

ss13remake

Clone of Space Station 13

A defunct, unfinished remake of Space Station 13 with original sprites replaced by placeholder art.

Platforms:Windows

Stars139

Updated11 years ago

LicenseUnknown

Release2015

Genre: RPG

Theme: Sci-Fi

Active

No preview

ReflectionHLE

Clone of Catacomb 3-D

A Chocolate-Doom-inspired family of DOS source ports covering Keen Dreams, Catacomb 3-D, Wolfenstein 3D, and BioMenace.

Platforms:WindowsLinuxOSX

Stars137

Updated2 months ago

LicenseUnknown

Release2014

Genre: Action

Theme: Fantasy

Halted

The Colony

Clone of The Colony

The official Apache 2.0 source release of David A. Smith's 1988 Macintosh 3D adventure/shooter, with PC and Amiga ports.

Platforms:WindowsClassic Mac OSAmiga

Stars137

Updated3 years ago

LicenseApache-2.0

Release2023

Genre: Adventure

Theme: Sci-Fi

Halted

No preview

The Operative: No One Lives Forever

Clone of The Operative: No One Lives Forever

Monolith's official 2001 source code release for No One Lives Forever, published for modding the game.

Platforms:Windows

Stars137

Updated14 years ago

LicenseUnknown

Release2012

Genre: FPS

Theme: Comedy

Active

TVTower

Clone of Mad TV

TVTower is a free, open-source tribute to the 1991 TV-station management game Mad TV.

Platforms:Windows

Stars136

Updated14 days ago

LicenseUnknown

Release2014

Genre: Strategy

Theme: Management

Halted

UA_source

Clone of Urban Assault

An open-source, GPLv2 reimplementation of the Urban Assault engine that requires the original game's files to run.

Platforms:Windows

Stars136

Updated1 year ago

LicenseGPL-2.0

Release2015

Genre: FPS

Theme: —

Halted

Free Heroes 2 - Enhanced

Clone of Heroes of Might and Magic II

A Heroes of Might and Magic II engine recreation with UI and gameplay enhancements; v1.0 released for Windows, development now suspended.

Platforms:Windows

Stars135

Updated6 years ago

LicenseUnknown

Release2017

Genre: Turn-Based Strategy

Theme: —

Active

No preview

MegaManXSNESRecomp

Clone of Mega Man X

A static recompilation of SNES Mega Man X into native code, fully playable with an experimental widescreen mode.

Platforms:WindowsLinuxOSX

Stars135

Updated13 days ago

LicenseUnknown

Release2026

Genre: Platform

Theme: —

Active

No preview

Pokémon Mystery Dungeon: Explorers of Sky

Clone of Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness

A work-in-progress disassembly rebuilding Pokémon Mystery Dungeon: Explorers of Sky's DS ROM from source.

Platforms:DS

Stars135

Updated17 days ago

LicenseUnknown

Release2023

Genre: RPG

Theme: Fantasy

Active

No preview

2009scape

Clone of RuneScape

2009scape is an open-source AGPL-3.0 emulation server recreating RuneScape as it existed around January 2009's build 530.

Platforms:WebWindowsLinux

Stars134

Updated9 days ago

Licenseagpl-3.0

Release2021

Genre: MMORPG

Theme: Fantasy

Sporadic

OpMon

Clone of Pokémon

An early open-source, Pokémon-inspired monster RPG, rebooted in Godot after an earlier C++ version.

Platforms:WindowsLinuxOSX

Stars134

Updated1 year ago

LicenseUnknown

Release2020

Genre: RPG

Theme: —

Archived

Dungeon of Quake

Clone of Quake

Dungeon of Quake is a simple Quake-inspired FPS built with Odin and Raylib, using its own ASCII map format and a companion map editor.

Platforms:Windows

Stars133

Updated2 years ago

LicenseUnknown

Release2022

Genre: FPS

Theme: Fantasy

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