Cloned Games

Free & Open Source Turn-Based Strategy Games

133 free, open-source turn-based 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.

Halted
Tanks of Freedom screenshot

Clone of Advance Wars

Tanks of Freedom is an open-source isometric pixel-art turn-based strategy game built in Godot Engine, with a released sequel.
Platforms:WindowsLinuxOSX
Stars1,208
Updated1 year ago
LicenseMIT*
Release2015
Theme: —
Halted
Remnants of the Precursors screenshot

Clone of Master of Orion

Remnants of the Precursors is a modernization of Master of Orion, leading one of ten races to galactic domination with streamlined play.
Platforms:WindowsLinuxOSX
Stars221
Updated3 years ago
LicenseCC-BY-NC-ND, GPL3*
Release2020
Active
No preview

Clone of Master of Orion

A reconstruction of the original 1993 DOS Master of Orion for modern systems, though this fork is no longer actively developed.
Platforms:WindowsLinuxDOS
Stars109
Updated24 days ago
LicenseGPL-2.0
Release2022
Active
UnCiv screenshot

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
Theme: —
Active
The Battle for Wesnoth screenshot

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
Active
VCMI screenshot

Clone of Heroes of Might and Magic III

An open-source recreation of the Heroes of Might and Magic III engine with new features, full mod support, and mobile ports.
Platforms:WindowsLinuxOSX
Stars5,863
Updated13 days ago
LicenseGPL-2.0
Release2014
Theme: —
Halted
No preview

Clone of Duelyst

The CC0 source release of Duelyst, the card/tactics game shut down in 2020, playable in a browser via a self-hosted server.
Platforms:Web
Stars3,903
Updated1 year ago
LicenseCC0-1.0
Release2022
Genre: Card Game
Theme: —
Active
fheroes2 screenshot

Clone of Heroes of Might and Magic II

fheroes2 is an open-source, from-scratch recreation of the Heroes of Might and Magic II engine, with high-resolution graphics and better AI.
Platforms:WindowsLinuxOSX
Stars3,479
Updated11 days ago
LicenseGPL-2.0
Release2019
Theme: —
Sporadic
OpenXcom screenshot

Clone of X-COM: UFO Defense

A playable open-source clone of UFO: Enemy Unknown and Terror from the Deep with extensive mod support.
Platforms:WindowsLinuxOSX
Stars2,215
Updated3 months ago
LicenseGPL-3.0
Release2011
Genre: Strategy
Theme: Horror
Sporadic
Freeciv-web screenshot

Clone of Civilization II

A browser-based, turn-based empire-building strategy game built on the Freeciv C server, with 2D and 3D WebGL clients.
Platforms:Web
Stars2,199
Updated6 months ago
LicenseUnknown
Release2013
Theme: —
Active
Athena Crisis screenshot

Clone of Athena Crisis

Athena Crisis is an MIT-licensed turn-based strategy game whose core code — engine, AI, rendering, and map editor — is open-core.
Platforms:Web
Stars1,981
Updated20 days ago
LicenseUnknown
Release2024
Active
Ancient Beast screenshot

Clone of Heroes of Might and Magic III

A browser-based, turn-based tactical strategy game played online in 1v1 or 2v2 matches with creatures that have unique abilities.
Platforms:Web
Stars1,873
Updated1 month ago
LicenseAGPL-3.0
Release2011
Theme: —
Active
Freeciv screenshot

Clone of Civilization II

An open-source, GPLv2-licensed empire-building strategy game inspired by the history of human civilization, for Windows and Linux.
Platforms:WindowsLinux
Stars1,596
Updated11 days ago
LicenseGPL-2.0
Release2017
Theme: —
Active
No preview

Clone of Master of Orion

FreeOrion is an open-source, turn-based 4X space empire game with scripting support for community-customized mechanics and content.
Platforms:WindowsLinuxOSX
Stars1,042
Updated11 days ago
LicenseUnknown
Release2015
Active
FreeCol screenshot

Clone of Sid Meier's Colonization

An open-source, GPL-licensed turn-based strategy game cloning Colonization closely, adding an isometric map and multiplayer support.
Platforms:WindowsLinuxOSX
Stars711
Updated12 days ago
LicenseGPL-2.0
Release2017
Theme: —
Active
OpenCiv3 screenshot

Clone of Civilization III

A fan-made, mod-friendly Civilization III remake built with Godot and C#, currently in pre-alpha.
Platforms:WindowsLinuxOSX
Stars656
Updated12 days ago
LicenseMIT
Release2021
Theme: —
Active
GLSMAC screenshot

Clone of Sid Meier's Alpha Centauri

An unofficial open-source reimplementation of Sid Meier's Alpha Centauri and Alien Crossfire, requiring a legally owned original copy.
Platforms:WindowsLinux
Stars631
Updated14 days ago
LicenseAGPL-3.0
Release2023
Theme: —
Active
OpenApoc screenshot

Clone of X-COM: Apocalypse

An alpha reimplementation of X-COM: Apocalypse with modding, a skirmish mode and modern resolutions; it needs the original files.
Platforms:WindowsLinuxOSX
Stars592
Updated12 days ago
LicenseGPL-3.0
Release2014
Genre: Strategy
Theme: Horror
Active
Hedgewars screenshot

Clone of Worms Series

A turn-based strategy game where teams of up to eight hedgehogs battle with over 40 weapons on terrain that deforms as it's damaged.
Platforms:WindowsLinuxOSX
Stars560
Updated29 days ago
LicenseGPL-2.0
Release2013
Theme: —
Active
Jagged Alliance 2 Stracciatella screenshot

Clone of Jagged Alliance 2

A community-maintained continuation of JA2-Stracciatella, running Jagged Alliance 2 on modern systems using data from an original copy.
Platforms:WindowsLinuxOSX
Stars535
Updated11 days ago
LicenseUnknown
Release2016
Genre: RPG
Theme: Sci-Fi
Active
No preview

Clone of OGame

A single-player browser space strategy game inspired by OGame, built with Vue 3 and TypeScript, with all data stored locally.
Platforms:Web
Stars516
Updated2 months ago
LicenseUnknown
Release2025
Sporadic
Tanks of Freedom II screenshot

Clone of Advance Wars

An open-source turn-based strategy game in voxel art, the sequel to Tanks of Freedom, with a built-in map editor.
Platforms:WindowsLinux
Stars426
Updated11 months ago
LicenseUnknown
Release2019
Theme: —
Active
No preview

Clone of Battle Isle 2220

A static recompiler that rebuilds classic DOS/Windows games like X-COM and Warcraft: Orcs & Humans as native modern builds.
Platforms:WindowsLinux
Stars416
Updated1 month ago
LicenseUnknown
Release2016
Theme: —
Active
No preview

Clone of Pokémon Trading Card Game

A disassembly rebuilding the original Pokémon Trading Card Game Game Boy Color ROM from source.
Platforms:Game Boy
Stars328
Updated1 month ago
LicenseUnknown
Release2014
Genre: Card Game
Theme: —
Active
Commander Wars screenshot

Clone of Advance Wars

A from-scratch Advance Wars clone built in C++ with the oxygine engine and Qt, supporting community mods.
Platforms:Linux
Stars295
Updated11 days ago
LicenseLGPL-3.0
Release2019
Theme: —
Active
Freeciv21 screenshot

Clone of Civilization II

A turn-based 4X empire-building strategy game built on Freeciv with Qt, supporting hex and square maps and 500+ nations.
Platforms:WindowsLinuxOSX
Stars267
Updated13 days ago
LicenseGPL-3.0
Release2020
Theme: —
Halted
No preview

Clone of Civilization

CivOne is a project related to the original Civilization game, but its README gives no further detail on its scope or features.
Platforms:None
Stars262
Updated5 years ago
LicenseCC0-1.0
Release2015
Theme: —
Active
No preview

Clone of Dominion

A playable open-source browser remake of Dominion, the defunct text-based fantasy war game from Kamikaze Games.
Platforms:Web
Stars262
Updated12 days ago
LicenseAGPL-3.0
Release2015
Active
Race Into Space screenshot

Clone of Buzz Aldrin's Race Into Space

Race Into Space is the actively maintained free-software continuation of Buzz Aldrin's 1993 Race Into Space.
Platforms:WindowsLinuxOSX
Stars228
Updated12 days ago
LicenseGPL-2.0
Release2011
Genre: Strategy
Theme: Management
Sporadic
Balatro TUI screenshot

Clone of Balatro

Balatro TUI is a minimal, work-in-progress Rust clone of Balatro played entirely in a terminal, with logic and UI split across crates.
Platforms:None
Stars205
Updated4 months ago
LicenseGPL-3.0
Release2024
Theme: —
Active
No preview

Clone of Pokémon Stadium

A work-in-progress decompilation rebuilding the original Pokémon Stadium Nintendo 64 ROM from source.
Platforms:N64
Stars203
Updated13 days ago
LicenseUnknown
Release2014
Halted
Flotilla screenshot

Clone of Flotilla

Flotilla is Brendon Chung's official 2010 source release, combining turn-based 3D ship combat with randomized exploration events.
Platforms:Windows
Stars185
Updated3 years ago
LicenseZlib
Release2020
Halted
Open Panzer screenshot

Clone of Panzer General

A browser-based HTML5 take on Panzer General 2 written in plain JavaScript, playable on desktop and mobile browsers.
Platforms:Web
Stars185
Updated5 years ago
LicenseUnknown
Release2012
Theme: —
Archived
OpenHoW screenshot

Clone of Hogs of War

An archived, unfinished open-source Hogs of War reimplementation, shelved after an official remaster was announced.
Platforms:WindowsLinux
Stars170
Updated3 years ago
LicenseGPL-3.0
Release2017
Theme: —
Halted
WarMUX screenshot

Clone of Worms Series

WarMUX is a preserved, free open-source clone of the Worms artillery game series, using its own original assets.
Platforms:WindowsLinuxOSX
Stars150
Updated3 years ago
LicenseGPL-2.0
Release2016
Theme: —
Halted
Free Heroes 2 - Enhanced screenshot

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
Theme: —
Sporadic
Dope Wars screenshot

Clone of Drugwars

dopewars is a client-server simulation of a drug dealer's life in New York, with multiplayer support on Linux, Windows, and macOS.
Platforms:WindowsLinuxOSX
Stars116
Updated8 months ago
LicenseGPL-2.0
Release2015
Genre: Strategy
Theme: Crime
Active
Apolyton Call to Power II Source Code Project screenshot

Clone of Call to Power II

The Apolyton community's continuation of Call to Power II's official source code, building on Windows, Linux, and handheld devices.
Platforms:WindowsLinux
Stars113
Updated19 days ago
LicenseUnknown
Release2018
Theme: —
Halted
OpenMoM screenshot

Clone of Master of Magic

A from-scratch C++ rewrite of Master of Magic aiming for visual accuracy and extensible mechanics, still at prototype stage.
Platforms:WindowsLinuxOSX
Stars112
Updated2 years ago
LicenseGPL-3.0
Release2014

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