Cloned Games

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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OpenRA screenshot
OpenRA

Clone of Command & Conquer

An open-source RTS engine that reimagines Red Alert, Tiberian Dawn and Dune 2000, with online multiplayer and modding tools.
Platforms:WindowsLinuxOSX
Stars17,376
Updated12 days ago
LicenseGPL-3.0
Release2010
Genre: Real-Time Strategy
Theme: Modern Military
Active
OpenRCT2 screenshot
OpenRCT2

Clone of RollerCoaster Tycoon

An open-source re-implementation of RollerCoaster Tycoon 2 with modern platform support, higher limits and co-op multiplayer.
Platforms:WindowsLinuxOSX
Stars16,227
Updated11 days ago
LicenseGPL-3.0
Release2014
Genre: Simulation
Theme: Management
Active
openage screenshot
openage

Clone of Age of Empires

A free engine clone of Age of Empires' Genie Engine; it needs the original game assets, and gameplay is being rebuilt.
Platforms:Linux
Stars14,432
Updated12 days ago
LicenseUnknown
Release2013
Genre: Real-Time Strategy
Theme: Ancient History
Active
Ebitengine screenshot
Ebitengine

Clone of 2048

Ebitengine is an open-source, cross-platform 2D game engine for Go, with simple APIs for graphics, input, and audio across many platforms.
Platforms:Web
Stars13,485
Updated11 days ago
LicenseApache-2.0
Release2013
Genre: Puzzle
Theme: —
Halted
2048 screenshot
2048

Clone of 2048

The official open-source 2048 repository: the original browser-playable JavaScript and CSS implementation, also on iOS and Android.
Platforms:WebAndroidiOS
Stars13,391
Updated1 year ago
LicenseMIT
Release2014
Genre: Puzzle
Theme: —
Active
Cataclysm: Dark Days Ahead screenshot
Cataclysm: Dark Days Ahead

Clone of Cataclysm

A turn-based survival game in a procedurally generated post-apocalyptic world, actively developed by over 1,000 volunteer contributors.
Platforms:WebWindowsLinux
Stars13,141
Updated11 days ago
LicenseUnknown
Release2012
Genre: Roguelike
Theme: Horror
Active
Paper screenshot
Paper

Clone of Minecraft

A high-performance Minecraft server that fixes gameplay inconsistencies and offers a plugin API.
Platforms:WindowsLinuxOSX
Stars12,641
Updated11 days ago
LicenseUnknown
Release2016
Genre: Action
Theme: Fantasy
Active
UnCiv screenshot
UnCiv

Clone of Civilization V

An open source, moddable remake of Civilization V for Android and desktop, using no original game assets.
Platforms:WindowsLinuxOSX
Stars11,279
Updated11 days ago
LicenseMPL-2.0
Release2017
Genre: Turn-Based Strategy
Theme: —
Halted
Craft screenshot
Craft

Clone of Minecraft

Craft is a Minecraft clone written in a few thousand lines of C with shader-based OpenGL, adding procedural terrain and multiplayer.
Platforms:WindowsLinuxOSX
Stars11,102
Updated2 years ago
LicenseMIT
Release2013
Genre: Action
Theme: Fantasy
Archived
OpenDiablo2 screenshot
OpenDiablo2

Clone of Diablo II

An archived Go-based cross-platform engine for playing Diablo 2 with your own copy of the game data.
Platforms:None
Stars11,089
Updated5 years ago
LicenseGPL-3.0
Release2018
Genre: RPG
Theme: Fantasy
Active
No preview
TrinityCore

Clone of World of Warcraft

An open-source, GPL-licensed C++ server framework that emulates World of Warcraft, forked from the earlier MaNGOS project.
Platforms:WindowsLinuxOSX
Stars10,775
Updated11 days ago
LicenseGPL-2.0
Release2010
Genre: MMORPG
Theme: Fantasy
Active
No preview
Source SDK 2013

Clone of Half-Life 2

Valve's official SDK release with the game code for Half-Life 2, HL2: Deathmatch, and Team Fortress 2, for building mods.
Platforms:WindowsLinux
Stars10,002
Updated21 days ago
LicenseUnknown
Release2013
Genre: FPS
Theme: Sci-Fi
Active
DevilutionX screenshot
DevilutionX

Clone of Diablo

DevilutionX is a modernized port of Diablo and Hellfire built on the Devilution source reconstruction, adding engine fixes and QoL features.
Platforms:WindowsLinuxOSX
Stars9,748
Updated11 days ago
LicenseUnknown
Release2018
Genre: RPG
Theme: Horror
Halted
Devilution screenshot
Devilution

Clone of Diablo

Devilution reconstructs Diablo's original 1996 source code from reverse-engineered debug symbols, preserving its original bugs intact.
Platforms:Windows
Stars8,998
Updated1 year ago
LicenseUnknown
Release2018
Genre: RPG
Theme: Horror
Sporadic
jynew screenshot
jynew

Clone of Heroes of Jin Yong

jynew is an open-source Unity wuxia RPG framework tribute to Heroes of Jin Yong, built as a platform for fan-made content, now complete.
Platforms:WindowsAndroidiOS
Stars8,962
Updated6 months ago
LicenseUnknown
Release2021
Genre: RPG
Theme: Fantasy
Active
OpenTTD screenshot
OpenTTD

Clone of Transport Tycoon

A free, actively developed remake and expansion of Transport Tycoon Deluxe with multiplayer and in-game mod downloads.
Platforms:WindowsLinuxOSX
Stars8,264
Updated11 days ago
LicenseUnknown
Release2018
Genre: Strategy
Theme: Management
Halted
No preview
Quake III Arena

Clone of Quake 3

id Software's official GPL source release for Quake III Arena, including its full renderer, game code, and Q3Radiant editor.
Platforms:WindowsLinuxOSX
Stars8,231
Updated2 years ago
LicenseGPL-2.0
Release2012
Genre: FPS
Theme: Sci-Fi
Halted
No preview
Citybound

Clone of SimCity

Citybound is an independently developed, Patreon-funded open-source city-builder emphasizing realism and fine-grained simulation detail.
Platforms:Web
Stars8,163
Updated3 years ago
LicenseAGPL-3.0
Release2016
Genre: Simulation
Theme: Management
Active
VVVVVV screenshot
VVVVVV

Clone of VVVVVV

The official open-source release of Terry Cavanagh's 2010 puzzle-platformer VVVVVV, free to compile and play.
Platforms:WindowsLinuxOSX
Stars8,025
Updated1 month ago
LicenseUnknown
Release2015
Genre: Puzzle
Theme: —
Active
Endless Sky screenshot
Endless Sky

Clone of Escape Velocity

Endless Sky is a sandbox 2D space trading and combat game inspired by Elite and Escape Velocity, developed for a decade by volunteers.
Platforms:WindowsLinuxOSX
Stars7,559
Updated11 days ago
LicenseGPL-3.0
Release2015
Genre: Action
Theme: —
Active
No preview
Zelda 64: Recompiled

Clone of The Legend of Zelda: Majora's Mask

Statically recompiles Majora's Mask into a native PC port with mod support, widescreen, and high framerates.
Platforms:WindowsLinuxOSX
Stars7,261
Updated1 month ago
LicenseGPL-3.0
Release2023
Genre: Action
Theme: Fantasy
Active
The Battle for Wesnoth screenshot
The Battle for Wesnoth

Clone of Master of Monsters

The Battle for Wesnoth is an open-source, turn-based tactical strategy game with a high-fantasy setting and singleplayer campaigns.
Platforms:WindowsLinuxOSX
Stars6,876
Updated11 days ago
LicenseGPL-2.0
Release2013
Genre: Turn-Based Strategy
Theme: Fantasy
Halted
No preview
Prince of Persia Apple II

Clone of Prince of Persia

The original 6502 assembly source code for Prince of Persia, written by Jordan Mechner and released by Broderbund in 1989.
Platforms:Apple II
Stars6,866
Updated2 years ago
LicenseUnknown
Release2012
Genre: Platform
Theme: —
Halted
Quake screenshot
Quake

Clone of Quake

id Software's official GPL source release for Quake (1996), covering WinQuake, GLQuake, QuakeWorld, and GLQuakeWorld.
Platforms:Windows
Stars6,052
Updated2 years ago
LicenseUnknown
Release2012
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 cover art

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 cover art

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 cover art

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 cover art

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 cover art

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 cover art

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 cover art

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 cover art

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 cover art

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

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