Free & Open Source Turn-Based Strategy Games
146 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
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
Genre: Turn-Based Strategy
Theme: —
Halted
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
Genre: Turn-Based Strategy
Theme: Sci-Fi
Active
Original game image
Original game imageClone 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
Stars110
Updated2 months ago
LicenseGPL-2.0
Release2022
Genre: Turn-Based Strategy
Theme: Sci-Fi
Active
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
Updated1 month ago
LicenseMPL-2.0
Release2017
Genre: Turn-Based Strategy
Theme: —
Active
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
Updated1 month ago
LicenseGPL-2.0
Release2013
Genre: Turn-Based Strategy
Theme: Fantasy
Active
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
Updated1 month ago
LicenseGPL-2.0
Release2014
Genre: Turn-Based Strategy
Theme: —
Halted
Original game image
Original game imageClone 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
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
Updated1 month ago
LicenseGPL-2.0
Release2019
Genre: Turn-Based Strategy
Theme: —
Sporadic
Clone of X-COM: UFO Defense
A playable open-source clone of UFO: Enemy Unknown and Terror from the Deep with extensive mod support.
Sporadic
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
Updated7 months ago
LicenseUnknown
Release2013
Genre: Turn-Based Strategy
Theme: —
Active
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
Updated2 months ago
LicenseUnknown
Release2024
Genre: Turn-Based Tactics
Theme: Sci-Fi
Active
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
Stars1,880
Updated1 month ago
LicenseAGPL-3.0
Release2011
Genre: Turn-Based Strategy
Theme: —
Active
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
Updated1 month ago
LicenseGPL-2.0
Release2017
Genre: Turn-Based Strategy
Theme: —
ActiveOriginal game image
Original game imageClone 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
Updated1 month ago
LicenseUnknown
Release2015
Genre: Turn-Based Strategy
Theme: Sci-Fi
Active
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
Updated1 month ago
LicenseGPL-2.0
Release2017
Genre: Turn-Based Strategy
Theme: —
Active
Clone of Civilization III
A fan-made, mod-friendly Civilization III remake built with Godot and C#, currently in pre-alpha.
Platforms:WindowsLinuxOSX
Stars656
Updated1 month ago
LicenseMIT
Release2021
Genre: Turn-Based Strategy
Theme: —
Active
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
Updated2 months ago
LicenseAGPL-3.0
Release2023
Genre: Turn-Based Strategy
Theme: —
Active
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.
Active
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
Updated2 months ago
LicenseGPL-2.0
Release2013
Genre: Turn-Based Strategy
Theme: —
Active
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.
Active
Original game image
Original game imageClone 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
Updated4 months ago
LicenseUnknown
Release2025
Genre: Turn-Based Strategy
Theme: Sci-Fi
Sporadic
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
Updated1 year ago
LicenseUnknown
Release2019
Genre: Turn-Based Strategy
Theme: —
Active
Original game image
Original game imageClone 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
Updated2 months ago
LicenseUnknown
Release2016
Genre: Turn-Based Strategy
Theme: —
Active
Original game image
Original game imageClone of Pokémon Trading Card Game
A disassembly rebuilding the original Pokémon Trading Card Game Game Boy Color ROM from source.
Platforms:Game Boy
Stars328
Updated2 months ago
LicenseUnknown
Release2014
Genre: Card Game
Theme: —
Active
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
Updated1 month ago
LicenseLGPL-3.0
Release2019
Genre: Turn-Based Strategy
Theme: —
Active
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
Updated1 month ago
LicenseGPL-3.0
Release2020
Genre: Turn-Based Strategy
Theme: —
Halted
Original game image
Original game imageClone of Civilization
CivOne is a project related to the original Civilization game, but its README gives no further detail on its scope or features.
Active
Active
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
Updated1 month ago
LicenseGPL-2.0
Release2011
Genre: Strategy
Theme: Management
Active
Original game image
Original game imageClone of Fire Emblem: The Sacred Stones
A disassembly of Fire Emblem: The Sacred Stones (U) that builds a ROM matching a stated SHA-1, from your own base ROM.
Stars220
Updated2 months ago
LicenseUnknown
Release2018
Genre: RPG
Theme: —
Sporadic
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
Updated6 months ago
LicenseGPL-3.0
Release2024
Genre: Turn-Based Strategy
Theme: —
Active
Original game image
Original game imageClone of Pokémon Stadium
A work-in-progress decompilation rebuilding the original Pokémon Stadium Nintendo 64 ROM from source.
Platforms:N64
Stars203
Updated1 month ago
LicenseUnknown
Release2014
Genre: Turn-Based Strategy
Theme: Fantasy
Halted
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
Genre: Turn-Based Strategy
Theme: Sci-Fi
Halted
Clone of Panzer General
A browser-based HTML5 take on Panzer General 2 written in plain JavaScript, playable on desktop and mobile browsers.
Archived
Clone of Hogs of War
An archived, unfinished open-source Hogs of War reimplementation, shelved after an official remaster was announced.
Platforms:WindowsLinux
Stars170
Updated4 years ago
LicenseGPL-3.0
Release2017
Genre: Turn-Based Strategy
Theme: —
Halted
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
Genre: Turn-Based Strategy
Theme: —
Halted
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
Genre: Turn-Based Strategy
Theme: —
Archived
Clone of Pokémon Stadium
A native PC static recompilation of Pokémon Stadium (US v1.0) with Transfer Pak support; no longer maintained.
Stars121
Updated2 months ago
LicenseGPL-3.0
Release2026
Genre: Turn-Based Strategy
Theme: Fantasy
