Free & Open Source Clones & Decompilations of Retro Games

4,049 open-source clones, remakes and decompilations of 2,426 retro games — real source code you can read, fork, and play today, not just a free download.

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Halted

Original game image

uninvited

Clone of Uninvited

An unauthorized Inform reimplementation of the 1986 Macintosh adventure Uninvited, built without the original's source code.

Platforms:LinuxOSX

Stars1

Updated7 years ago

Licenseartistic-2.0

Release2018

Genre: Adventure

Theme: —

Halted

Original game image

vkHexen

Clone of Hexen

An experimental Vulkan learning-project port of Hexen; currently not functional and crashes on startup.

Platforms:Windows

Stars1

Updated3 years ago

LicenseGPL-3.0

Release2023

Genre: FPS

Theme: Fantasy

Halted

Wordle (original game, not this project)

Original game image

wordle-clone

Clone of Wordle

Platforms:Web

Stars1

Updated1 year ago

LicenseUnknown

Release2024

Genre: Puzzle

Theme: —

Halted

wordlemini

Clone of Wordle

wordlemini is a terminal Wordle clone built with Textual, supporting nine languages and a personal stats tracker.

Platforms:None

Stars1

Updated2 years ago

LicenseMIT

Release2024

Genre: Puzzle

Theme: —

Halted

xhyperoid

Clone of Asteroids

A Unix/X11 port of Hyperoid, a 1991 Windows Asteroids variant, with added sound support.

Platforms:Linux

Stars1

Updated7 years ago

LicenseGPL-2.0

Release2019

Genre: Arcade

Theme: —

Halted

Minesweeper (original game, not this project)

Original game image

xminesweep

Clone of Minesweeper

A 1993 X11 Minesweeper clone by Ashley Roll, with an optional cheat mode to reveal a safe square.

Platforms:Linux

Stars1

Updated2 years ago

LicenseUnknown

Release2024

Genre: Puzzle

Theme: —

Halted

2019-Bomber

Clone of Kaboom!

A Kaboom! clone written in Turbo BASIC XL for Atari 8-bit computers, made for the 2019 10-line BASIC programming contest's PUR-120 category.

Platforms:Atari

Stars0

Updated6 years ago

LicenseMIT

Release2020

Genre: Arcade

Theme: —

Halted

Adventure In Time

Clone of Adventure in Time

The official archived source code and disk images for Adventure In Time (Phoenix Software), playable on Apple II and Atari 8-bit hardware.

Platforms:AtariApple II

Stars0

Updated4 years ago

LicenseUnknown

Release2022

Genre: Adventure

Theme: —

Halted

No preview

Age of Speed 2 Decompilation

A documented decompilation and build process for the Macromedia Director racing game Age of Speed 2.

Stars0

Updated1 year ago

LicenseUnknown

Release2025

Genre: —

Theme: —

Halted

Original game image

Alleyway

Clone of Alleyway

A full disassembly of the Game Boy title Alleyway, able to rebuild a ROM matching the known release, verified against a stated MD5 checksum.

Platforms:Game Boy

Stars0

Updated5 years ago

LicenseUnknown

Release2019

Genre: Arcade

Theme: —

Halted

Amazing Island (original game, not this project)

Original game image

Amazing Island Decompilation

Clone of Amazing Island

A decompilation project for Amazing Island, built on the decomp-toolkit template.

Stars0

Updated1 year ago

LicenseCC0-1.0

Release2025

Genre: Action

Theme: —

Halted

Arkanoid (Rust)

Clone of Arkanoid

An Arkanoid clone written in Rust, with pre-compiled Windows/Linux binaries or a Cargo build; semi-complete, development halted.

Platforms:None

Stars0

Updated3 years ago

LicenseMIT

Release2022

Genre: Arcade

Theme: —

Halted

Arkanoid TUI

Clone of Arkanoid

A terminal-based Arkanoid implementation built with the Ratatui library in Rust, installable via Cargo; semi-complete, development halted.

Platforms:None

Stars0

Updated2 years ago

LicenseApache-2.0

Release2024

Genre: Arcade

Theme: —

Sporadic

Descent (original game, not this project)

Original game image

Ascent

Clone of Descent

A Descent-inspired 3D shooter with six-degrees-of-freedom movement, built in C++ with the OGRE 3D engine; playable but sporadic.

Platforms:None

Stars0

Updated1 year ago

LicenseGPL-3.0

Release2025

Genre: FPS

Theme: Sci-Fi

Halted

BUGS

Clone of Dr. Mario

BUGS is a terminal-based Dr. Mario clone written in K&R C with ncurses for Linux, placed in the Public Domain and updated in 2015.

Platforms:Linux

Stars0

Updated6 years ago

LicenseUnknown

Release2019

Genre: Puzzle

Theme: —

Halted

Babaliba

Clone of Babaliba

Platforms:WindowsLinuxOSX

Stars0

Updated11 years ago

LicenseUnknown

Release2015

Genre: Arcade

Theme: —

Halted

Star Trek (original game, not this project)

Original game image

BaconBytes.StarTrek

Clone of Star Trek

A C# port of the classic Star Trek text game, based on a community BASIC rewrite, including multiple translated and rewritten versions.

Platforms:None

Stars0

Updated9 years ago

LicenseUnknown

Release2024

Genre: Simulation

Theme: Sci-Fi

Halted

Billig-Sweeper

Clone of Minesweeper

Billig-Sweeper is a simple SDL2 Minesweeper clone with keyboard, mouse, and touchscreen controls, including pinch-zoom and swipe panning.

Platforms:Linux

Stars0

Updated4 years ago

LicenseGPL-3.0

Release2022

Genre: Puzzle

Theme: —

Halted

Original game image

Bong

Clone of Pong

Bong is a freeware Pong clone for BeOS by Gertjan van Ratingen, started as a joystick sample app, with joystick and keyboard controls.

Platforms:BeOS

Stars0

Updated8 years ago

LicenseUnknown

Release2014

Genre: Arcade

Theme: —

Halted

No preview

BoulderBombers

Clone of Boulder Bombers

BoulderBombers is a Public Domain conversion of Mark Price's Boulder Bombers to the Foenix F256 platform.

Platforms:Atari

Stars0

Updated1 year ago

LicenseUnknown

Release2022

Genre: —

Theme: —

Halted

Breakout Rust

Clone of Breakout

Breakout Rust is a Breakout clone with core logic in Rust compiled to WebAssembly, using a thin JS/HTML layer for rendering and input.

Platforms:Web

Stars0

Updated2 years ago

LicenseMIT

Release2024

Genre: Arcade

Theme: —

Halted

C Pong SDL

Clone of Pong

C Pong SDL is a basic C/SDL2 Pong implementation with ball physics and scoring, called an unpolished first SDL project by its author.

Platforms:None

Stars0

Updated2 years ago

LicenseUnlicense

Release2023

Genre: Arcade

Theme: —

Halted

Asteroids (original game, not this project)

Original game image

C# Asteroids

Clone of Asteroids

C# Asteroids is a vector-based Asteroids clone using GDI graphics and DirectX sound, based on a CodeProject article by Howard Uman.

Platforms:Windows

Stars0

Updated9 years ago

LicenseUnknown

Release2012

Genre: Arcade

Theme: —

Active

Centipede (original game, not this project)

Original game image

Centicrawler

Clone of Centipede

Centicrawler is an SDL2/C++17 clone of the 1981 arcade game Centipede, adding new elements like a two-player mode not in the original.

Platforms:Linux

Stars0

Updated2 months ago

LicenseBSD-3-Clause

Release2026

Genre: Shooter

Theme: Fantasy

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.

43 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.

20 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 III

2001Action

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.

4 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.

5 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.

8 clones to play