Cloned Games

Free & Open Source Strategy Games

341 free, open-source strategy games — real clones and remakes you can download, inspect the source of, and modify. Not just free to play: the code itself is open.

Active
Gardens of Kadesh screenshot
Gardens of Kadesh

Clone of Homeworld

Gardens of Kadesh is a fan-maintained continuation of Homeworld SDL, an earlier community port of Homeworld's 1999 source code.
Platforms:WebWindowsLinux
Stars17
Updated9 days ago
Licenseother
Release2019
Genre: Real-Time Strategy
Theme: Sci-Fi
Halted
OpenMOO2 screenshot
OpenMOO2

Clone of Master of Orion 2

A Python clone of Master of Orion II for Linux that uses the original game's data files; not yet playable.
Platforms:Linux
Stars17
Updated9 years ago
LicenseGPL-2.0
Release2015
Genre: Turn-Based Strategy
Theme: Sci-Fi
Halted
No preview
Taipan

Clone of Taipan!

A Unix port of Taipan!, the 19th-century South China Seas trading game originally written for the Apple II.
Platforms:Linux
Stars17
Updated11 years ago
LicenseUnknown
Release2015
Genre: Turn-Based Strategy
Theme: —
Archived
No preview
Allegiance

Clone of Allegiance

Microsoft's official, unsupported source-code release for Allegiance, published as-is after the game's own servers had already shut down.
Platforms:Windows
Stars16
Updated9 years ago
LicenseUnknown
Release2017
Genre: Action
Theme: Sci-Fi
Halted
No preview
BloonsTowerDefense6

Clone of Bloons Tower Defense

The README is an unfilled project template with no real game description, and the project is marked unplayable.
Platforms:None
Stars16
Updated7 years ago
LicenseUnknown
Release2017
Genre: Strategy
Theme: —
Halted
No preview
Castlekeep

Clone of Stronghold

Castlekeep is a reimplementation of Stronghold 1; the project is unplayable and development has halted.
Platforms:None
Stars16
Updated7 years ago
LicenseGPL-3.0
Release2019
Genre: Real-Time Strategy
Theme: Medieval
Halted
No preview
Olympia: The Age of Gods PBEM

Clone of Olympia PBEM

Source code of Olympia: The Age of Gods, Scott Turner's expanded version of Rich Skrenta's play-by-email strategy game.
Platforms:None
Stars16
Updated3 years ago
LicenseBSD-3-Clause
Release2011
Genre: Turn-Based Strategy
Theme: Fantasy
Active
No preview
OpenOP2

Clone of Outpost 2

A work-in-progress Outpost 2 mod for the OpenRA engine that needs the GOG release of the original.
Platforms:WindowsLinuxOSX
Stars16
Updated3 months ago
LicenseGPL-3.0
Release2020
Genre: Real-Time Strategy
Theme: Sci-Fi
Sporadic
No preview
Command Series Engine

Clone of Crusade in Europe

A from-scratch engine that plays the original Atari 8-bit disk images of MicroProse's three Command Series games.
Platforms:WindowsLinux
Stars15
Updated7 months ago
LicenseGPL-2.0
Release2020
Genre: Strategy
Theme: World War II
Sporadic
Eastern Front 1941 screenshot
Eastern Front 1941

Clone of Eastern Front (1941)

A from-scratch TypeScript port of Eastern Front 1941, built from disassembled originals, running client-side as a single-page web app.
Platforms:Web
Stars15
Updated8 months ago
LicenseMIT
Release2022
Genre: Turn-Based Strategy
Theme: World War II
Halted
No preview
SFCDDISASM

Clone of Shining Force CD

A disassembly of Shining Force CD that documents the game's code and can rebuild a bit-perfect copy of the original ISO.
Platforms:Sega CD
Stars15
Updated11 years ago
LicenseUnknown
Release2015
Genre: RPG
Theme: Fantasy
Halted
No preview
utkencode

Clone of Beasts and Bumpkins

Open source encoder/decoder tools for EA's MicroTalk speech codec, used in games like SimCity 4 and The Sims Online.
Platforms:None
Stars15
Updated8 years ago
LicenseUnlicense
Release2015
Genre: Real-Time Strategy
Theme: Comedy
Halted
No preview
Army Men 1998 Source Code and Tools

Clone of Army Men

Preserves the original 1998 Army Men source code and dev tools from The 3DO Company, including level, scenario, and animation editors.
Platforms:Windows
Stars14
Updated1 year ago
LicenseCC0-1.0
Release2022
Genre: Real-Time Tactics
Theme: Modern Military
Halted
No preview
Icebreaker 2

Clone of Icebreaker 2

Official 2007 source code release of Icebreaker 2, a 3DO strategy/action game by Andrew Looney, licensed under the GPLv3.
Platforms:3DO
Stars14
Updated3 years ago
LicenseGPL-3.0
Release2023
Genre: Puzzle
Theme: —
Halted
TclRobots screenshot
TclRobots

Clone of CROBOTS

A Tcl-scripted twist on Crobots: write a program in Tcl to pilot a combat robot to victory.
Platforms:None
Stars14
Updated15 years ago
LicenseUnknown
Release2010
Genre: Strategy
Theme: —
Halted
Warcraft 2000: Nuclear Epidemic screenshot
Warcraft 2000: Nuclear Epidemic

Clone of Warcraft 2000

Official released source code for Warcraft 2000: Nuclear Epidemic, GSC Game World's 1998 RTS built to rival Warcraft II and StarCraft.
Platforms:Windows
Stars14
Updated3 years ago
LicenseUnknown
Release2023
Genre: Real-Time Strategy
Theme: Fantasy
Halted
No preview
polanie-src

Clone of Polanie

Unmodified 1996 source code for the Polish RTS game Polanie, untested and unlikely to compile as-is.
Platforms:WindowsDOS
Stars14
Updated6 years ago
LicenseUnknown
Release2019
Genre: Real-Time Strategy
Theme: Fantasy
Active
No preview
New Play Control! Pikmin

Clone of Pikmin

A work-in-progress decompilation of the 2009 Wii release New Play Control! Pikmin; requires your own game copy.
Platforms:Wii
Stars13
Updated22 days ago
LicenseCC0-1.0
Release2025
Genre: Puzzle
Theme: Fantasy
Halted
OpenBound screenshot
OpenBound

Clone of Gunbound

A C# remake of the artillery game Gunbound, with its own client, login, lobby and game servers.
Platforms:Windows
Stars13
Updated2 years ago
LicenseGPL-3.0
Release2020
Genre: Strategy
Theme: —
Halted
No preview
Football Manager

Clone of Football Manager

Platforms:None
Stars12
Updated12 years ago
LicenseGPL2*
Release2014
Genre: Simulation
Theme: Management
Halted
No preview
Icebreaker

Clone of Icebreaker

Official 1995 source code release of Icebreaker, a strategy/action game for the 3DO console by Andrew Looney, licensed under the GPLv3.
Platforms:3DO
Stars12
Updated3 years ago
LicenseGPL-3.0
Release2023
Genre: Action
Theme: —
Sporadic
No preview
Pirates: Naval Combat

Clone of Sid Meier's Pirates!

A browser naval battle game inspired by the ship fights in Sid Meier's Pirates!, with wind-based sailing and three ship types.
Platforms:Web
Stars11
Updated3 months ago
LicenseUnknown
Release2026
Genre: Action
Theme: —
Halted
TTDPatch screenshot
TTDPatch

Clone of Transport Tycoon

Platforms:WindowsDOS
Stars11
Updated8 years ago
LicenseGPL-2.0
Release2017
Genre: Strategy
Theme: Management
Halted
X-Settlers screenshot
X-Settlers

Clone of The Settlers III

X-Settlers is an early, currently unplayable C++17 rewrite of The Settlers III/IV aiming for cross-platform support.
Platforms:WindowsLinux
Stars11
Updated6 years ago
LicenseApache-2.0
Release2020
Genre: Real-Time Strategy
Theme: Ancient History
Halted
KittenMaxit screenshot
KittenMaxit

Clone of Maxit

KittenMaxit is a LibGDX implementation of Maxit using a greedy move algorithm; requires 32-bit Java, not 64-bit.
Platforms:None
Stars10
Updated4 years ago
LicenseMIT
Release2015
Genre: Strategy
Theme: —
Halted
No preview
Scorched Moon

Clone of Moonbase Commander

A remake of Moonbase Commander, titled Project Tether: Scorched Moon, built with Python and Pygame.
Platforms:Linux
Stars10
Updated9 years ago
LicenseGPL-3.0
Release2015
Genre: Turn-Based Strategy
Theme: —
Halted
New Utopia screenshot
New Utopia

Clone of Utopia

An undocumented browser game built with the GameJS JavaScript framework.
Platforms:Web
Stars9
Updated15 years ago
LicenseUnknown
Release2011
Genre: Turn-Based Strategy
Theme: —
Halted
No preview
Space-rangers

Clone of Space Rangers

A Space Rangers remake built with Microsoft's XNA 4.0 framework for Windows; currently marked unplayable.
Platforms:Windows
Stars9
Updated13 years ago
LicenseUnknown
Release2011
Genre: Turn-Based Strategy
Theme: —
Halted
No preview
movbizz

Clone of Movie Business

A Laravel web remake of the C64 game Movie Business, about casting, making and marketing films.
Platforms:None
Stars9
Updated11 years ago
LicenseMIT
Release2015
Genre: Strategy
Theme: Management
Sporadic
Archaos screenshot
Archaos

Clone of Chaos: The Battle of Wizards

A browser-based isometric remake of Chaos: The Battle of Wizards built with Phaser 4 and Vue 3, supporting up to 8 local players.
Platforms:Web
Stars8
Updated4 months ago
LicenseMPL-2.0
Release2021
Genre: Turn-Based Strategy
Theme: Fantasy
Halted
Chaos Groove screenshot
Chaos Groove

Clone of Chaos: The Battle of Wizards

Richard Phipps' Windows remake of the classic ZX Spectrum game Chaos: Battle of the Wizards.
Platforms:Windows
Stars8
Updated15 years ago
LicenseUnknown
Release2011
Genre: Turn-Based Strategy
Theme: Fantasy
Halted
DopeWars for Palm OS screenshot
DopeWars for Palm OS

Clone of Drugwars

An archival copy of Matt Lee's original DopeWars source code for Palm OS mobile devices.
Platforms:Mobile
Stars8
Updated6 years ago
LicenseUnknown
Release2020
Genre: Strategy
Theme: Crime
Halted
FreeCNC screenshot
FreeCNC

Clone of Command & Conquer

FreeCNC is a GPLv2 engine reimplementation of Command & Conquer: Tiberian Dawn, requiring the original game's data files.
Platforms:WindowsLinux
Stars8
Updated12 years ago
LicenseUnknown
Release2014
Genre: Real-Time Strategy
Theme: Modern Military
Halted
Starlane Empire screenshot
Starlane Empire

Clone of Ascendancy

A Linux engine that emulates and aims to extend the 1995 DOS strategy game Ascendancy, still needing the original CD.
Platforms:Linux
Stars8
Updated9 years ago
LicenseGPL-2.0
Release2017
Genre: Turn-Based Strategy
Theme: —
Halted
Tornado screenshot
Tornado

Clone of Weather War

A terminal-based weather-combat game for Linux with single-player, multiplayer, and network play.
Platforms:Linux
Stars8
Updated8 years ago
LicenseGPL-2.0
Release2017
Genre: Turn-Based Tactics
Theme: —
Halted
EXLCOM screenshot
EXLCOM

Clone of X-COM: UFO Defense

Platforms:Excel
Stars6
Updated2 years ago
LicenseUnknown
Release2023
Genre: Strategy
Theme: Horror
Halted
Historyline screenshot
Historyline

Clone of History Line: 1914-1918

Platforms:Windows
Stars6
Updated13 years ago
LicenseUnknown
Release2013
Genre: Strategy
Theme: World War I
Halted
Maxit screenshot
Maxit

Clone of Maxit

Platforms:WindowsLinuxOSX
Stars6
Updated3 years ago
LicenseBSD-3-Clause
Release2015
Genre: Strategy
Theme: —
Halted
No preview
mewl

Clone of M.U.L.E.

An unfinished open-source remake of M.U.L.E., the classic multiplayer economic strategy game.
Platforms:Linux
Stars6
Updated11 years ago
LicenseGPL-2.0
Release2015
Genre: Turn-Based Strategy
Theme: —

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