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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The Great Escape Ported to C

Clone of The Great Escape

A portable C reimplementation of The Great Escape, reverse-engineered from Z80 assembly to run on macOS, Windows, and RISC OS.

Platforms:WindowsLinuxOSX

Stars132

Updated1 month ago

LicenseUnknown

Release2014

Genre: Arcade

Theme: World War II

Active

War1gus

Clone of Warcraft: Orcs & Humans

A Stratagus-engine reimplementation of Warcraft: Orcs & Humans with modern RTS conveniences, using the original's assets.

Platforms:WindowsLinuxOSX

Stars132

Updated3 months ago

LicenseGPL-2.0

Release2015

Genre: Real-Time Strategy

Theme: Fantasy

Sporadic

No preview

ElCity

Clone of SimCity

ElCity is a minimal city-building simulation that runs inside Emacs, implementing classic city-sim systems like pollution and crime.

Platforms:Emacs

Stars131

Updated6 months ago

LicenseUnknown

Release2026

Genre: Simulation

Theme: Management

Active

No preview

Paper Mario: The Thousand-Year Door

Clone of Paper Mario: The Thousand-Year Door

A work-in-progress decompilation of Paper Mario: The Thousand-Year Door for GameCube.

Platforms:GameCube

Stars130

Updated2 months ago

LicenseMIT

Release2021

Genre: RPG

Theme: —

Archived

LastTry

Clone of Terraria

LastTry is an open-source, Terraria-inspired sandbox game in Java/LibGDX; the working version lives on a separate 'dev' branch.

Platforms:None

Stars129

Updated8 years ago

LicenseMIT

Release2017

Genre: Action

Theme: Fantasy

Halted

No preview

OpenRoads

Clone of SkyRoads

A faithful TypeScript/HTML5 reimplementation of SkyRoads that uses the original art, music and levels, with Oculus Rift support.

Platforms:WebWindows

Stars129

Updated4 years ago

LicenseMIT

Release2014

Genre: Platform

Theme: Sci-Fi

Active

Sonic Adventure Toolset

Clone of Sonic Adventure

A toolkit for extracting and modifying data from the Sonic Adventure series of games.

Platforms:Windows

Stars129

Updated1 month ago

LicenseUnknown

Release2013

Genre: Action

Theme: —

Halted

Survivor

Clone of Survivor (1986)

An HTML/CSS/JavaScript browser prototype recreating the 1983 Commodore 64 game Survivor.

Platforms:Web

Stars129

Updated8 years ago

LicenseUnknown

Release2012

Genre: Puzzle

Theme: —

Halted

cl-wordle

Clone of Wordle

cl-wordle is a terminal-based Wordle implementation in Rust, supporting the daily word, past days, random words, or a custom word.

Platforms:None

Stars129

Updated2 years ago

LicenseUnknown

Release2022

Genre: Puzzle

Theme: —

Active

No preview

spidey-decomp

Clone of Spider-Man

A decompilation project for the 2000 PlayStation game Spider-Man, currently with no public details.

Platforms:Windows

Stars129

Updated1 month ago

LicenseUnknown

Release2023

Genre: Action

Theme: —

Sporadic

Armor Alley: Remastered

Clone of Armor Alley

Armor Alley: Remastered is a browser-based JavaScript/HTML5 remake of the Mac and MS-DOS original, still in sporadic development.

Platforms:Web

Stars128

Updated3 months ago

LicenseUnknown

Release2013

Genre: Arcade

Theme: Modern Military

Halted

No preview

DCPopulous

Clone of Populous

Platforms:Dreamcast

Stars128

Updated3 years ago

LicenseUnknown

Release2022

Genre: Real-Time Strategy

Theme: —

Halted

Uncharted waters 2 remake

Clone of Uncharted Waters

A web-based, in-progress remake of Uncharted Waters: New Horizons letting players explore all 130 ports and sail the original's world map.

Platforms:Web

Stars128

Updated3 years ago

LicenseMIT

Release2017

Genre: Adventure

Theme: Alternate Historical

Active

aoe

Clone of Age of Empires

A from-scratch, cross-platform reimplementation of Age of Empires and Rise of Rome, requiring the player's own game copy.

Platforms:WindowsLinux

Stars128

Updated2 months ago

LicenseApache-2.0

Release2016

Genre: Real-Time Strategy

Theme: Ancient History

Halted

Quad64

Clone of Super Mario 64

A no-longer-maintained open-source Super Mario 64 level editor supporting both vanilla and extended ROMs across all major regions.

Platforms:Windows

Stars127

Updated4 years ago

LicenseMIT

Release2017

Genre: Platform

Theme: —

Active

rsc-c

Clone of RuneScape Classic

A cross-platform, feature-enhanced C99 port of the original RuneScape Classic client.

Platforms:WebWindowsLinux

Stars127

Updated2 months ago

LicenseAGPL-3.0

Release2021

Genre: MMORPG

Theme: Fantasy

Halted

No preview

Griefly

Clone of Space Station 13

Griefly is an open-source C++14/Qt remake of Space Station 13, with separate client and server executables for Windows, Linux, and macOS.

Platforms:WindowsLinuxOSX

Stars126

Updated7 years ago

LicenseMIT

Release2013

Genre: RPG

Theme: Sci-Fi

Sporadic

OpenKrush

Clone of Krush, Kill 'n' Destroy

A semi-playable recreation of the KKnD real-time strategy games on the OpenRA engine.

Platforms:WindowsLinuxOSX

Stars126

Updated10 months ago

LicenseGPL-3.0

Release2018

Genre: Real-Time Strategy

Theme: Post-Apocalyptic

Sporadic

No preview

Ozymandias (Julius)

Clone of Pharaoh

A fork of Julius/Augustus adapted to run Pharaoh; unfinished, but it plays the first few campaign missions.

Platforms:WindowsLinuxOSX

Stars126

Updated7 months ago

LicenseAGPL-3.0

Release2020

Genre: Simulation

Theme: Ancient History

Halted

No preview

lttp-phaser

Clone of Legend of Zelda - A Link to the Past

Lttp is a from-scratch, browser-based recreation of A Link to the Past in Phaser WebGL, still missing dungeons and bosses.

Platforms:Web

Stars126

Updated7 years ago

LicenseMIT

Release2014

Genre: Action

Theme: —

Active

No preview

Raptor

Clone of Raptor: Call of the Shadows

Raptor is a modern engine rebuild of 1994's Raptor: Call of the Shadows, based on a reverse-engineered codebase.

Platforms:WindowsLinuxOSX

Stars125

Updated14 days ago

LicenseGPL-2.0

Release2021

Genre: Shmup

Theme: —

Halted

No preview

Source to Red Dog: Superior Firepower

Clone of Red Dog: Superior Firepower

Preserved source code for the Dreamcast game Red Dog: Superior Firepower, with no assets included and not known to compile.

Platforms:Dreamcast

Stars125

Updated4 years ago

LicenseMIT

Release2022

Genre: Racing

Theme: Sci-Fi

Halted

No preview

Grit Game Engine

Clone of Grand Theft Auto: San Andreas

Grit is an open-source game engine with a C++ core and Lua scripting, built with a separate Subversion content tree.

Platforms:Windows

Stars124

Updated8 years ago

LicenseMIT

Release2016

Genre: Action

Theme: Crime

Halted

POSTAL-SourceCode

Clone of Postal

The official 1997 source code for Running With Scissors' Robotron-inspired isometric shooter POSTAL, released by the studio itself.

Platforms:Windows

Stars124

Updated1 year ago

LicenseGPL-2.0

Release2024

Genre: Shooter

Theme: Horror

People are curious about clones of...

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

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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