Free & Open Source Strategy Games
380 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
Clone of Stronghold
An actively developed, open-source isometric remake of Firefly Studios' Stronghold, built in the LÖVE engine.
Platforms:None
Stars166
Updated2 months ago
Licenseapache-2.0
Release2017
Genre: Real-Time Strategy
Theme: Medieval
Halted
Clone of King under the Mountain
A Java game built with LibGDX, originally developed by Rocket Jump Technology and released open source under the MIT license.
Active
Original game image
Original game imageClone of Zeus: Master of Olympus
An open-source reimplementation of Zeus: Master of Olympus and its Poseidon expansion, requiring the original game's data files.
Platforms:WindowsLinuxOSX
Stars159
Updated2 months ago
LicenseGPL-3.0
Release2021
Genre: Strategy
Theme: Ancient History
Sporadic
Clone of StarCraft
A StarCraft remake built on the open-source Stratagus engine, requiring an existing StarCraft install for game data.
Platforms:WindowsLinuxOSX
Stars156
Updated11 months ago
LicenseGPL-2.0
Release2015
Genre: Real-Time Strategy
Theme: Sci-Fi
Sporadic
Clone of Dune 2
A cross-platform enhancement of Dune II built on OpenDUNE, adding widescreen graphics, multiplayer for up to 6, and fan campaigns.
Platforms:WindowsLinux
Stars154
Updated10 months ago
LicenseGPL-2.0
Release2023
Genre: Real-Time Strategy
Theme: Sci-Fi
Active
Clone of MechCommander 2
An open-source reimplementation of MechCommander 2's closed engine, fixing bugs, with networking left unfinished.
Platforms:WindowsLinux
Stars154
Updated2 months ago
LicenseGPL-3.0
Release2016
Genre: Real-Time Tactics
Theme: Sci-Fi
Active
Clone of Warcraft: Orcs & Humans
An in-progress C remake of Warcraft: Orcs & Humans using the original game's assets, with core RTS features implemented.
Platforms:WindowsLinuxRaspberry Pi
Stars153
Updated3 months ago
LicenseZlib
Release2018
Genre: Real-Time Strategy
Theme: Fantasy
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: —
Active
Clone of Outpost
A C++ redesign of Sierra's 1994 colony game Outpost, keeping its core concepts in a more responsive game.
Platforms:Windows
Stars143
Updated3 months ago
LicenseBSD-3-Clause
Release2018
Genre: Simulation
Theme: Sci-Fi
Archived
Original game image
Original game imageClone of The Settlers III
A Java remake of The Settlers III for Windows, Linux, and Android, left in alpha status with development now archived.
Platforms:WindowsLinuxAndroid
Stars142
Updated11 months ago
LicenseMIT
Release2018
Genre: Real-Time Strategy
Theme: Ancient History
Active
Clone of Mad TV
TVTower is a free, open-source tribute to the 1991 TV-station management game Mad TV.
Platforms:Windows
Stars136
Updated1 month ago
LicenseUnknown
Release2014
Genre: Strategy
Theme: Management
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: —
Active
Clone of Warcraft: Orcs & Humans
A Stratagus-engine reimplementation of Warcraft: Orcs & Humans with modern RTS conveniences, using the original's assets.
Platforms:WindowsLinuxOSX
Stars132
Updated4 months ago
LicenseGPL-2.0
Release2015
Genre: Real-Time Strategy
Theme: Fantasy
Sporadic
Clone of Armor Alley
Armor Alley: Remastered is a browser-based JavaScript/HTML5 remake of the Mac and MS-DOS original, still in sporadic development.
Platforms:Web
Stars129
Updated4 months ago
LicenseUnknown
Release2013
Genre: Arcade
Theme: Modern Military
Active
Clone of Age of Empires
A from-scratch, cross-platform reimplementation of Age of Empires and Rise of Rome, requiring the player's own game copy.
Platforms:WindowsLinux
Stars129
Updated1 month ago
LicenseApache-2.0
Release2016
Genre: Real-Time Strategy
Theme: Ancient History
Halted
Original game image
Original game imageClone of Populous
Platforms:Dreamcast
Stars128
Updated4 years ago
LicenseUnknown
Release2022
Genre: Real-Time Strategy
Theme: —
Halted
Clone of Uncharted Waters
A web-based, in-progress remake of Uncharted Waters: New Horizons letting players explore all 130 ports and sail the original's world map.
Platforms:Web
Stars128
Updated3 years ago
LicenseMIT
Release2017
Genre: Adventure
Theme: Alternate Historical
Sporadic
Clone of Krush, Kill 'n' Destroy
A semi-playable recreation of the KKnD real-time strategy games on the OpenRA engine.
Platforms:WindowsLinuxOSX
Stars126
Updated11 months ago
LicenseGPL-3.0
Release2018
Genre: Real-Time Strategy
Theme: Post-Apocalyptic
Active
Clone of Yu-Gi-Oh! Forbidden Memories
Forbidden Memories (PS1, USA) rebuilt from its decompilation as a native PC game with HD options.
Stars124
Updated1 month ago
LicenseUnknown
Release2026
Genre: Strategy
Theme: —
Halted
Clone of Swarm Assault
A near-complete Swarm Assault remake on the OpenRA engine, with all 100 missions, extra levels, multiplayer and a map editor.
Platforms:WindowsLinuxOSX
Stars123
Updated3 years ago
LicenseGPL-3.0
Release2019
Genre: Real-Time Strategy
Theme: —
Sporadic
Clone of Total Annihilation
An open-source RTS engine highly compatible with Total Annihilation's original data files.
Platforms:Windows
Stars123
Updated7 months ago
LicenseGPL-3.0
Release2017
Genre: Real-Time Strategy
Theme: Sci-Fi
Active
Clone of Yu-Gi-Oh! Forbidden Memories
A static recompilation of Yu-Gi-Oh! Forbidden Memories (USA) that has moved to a new repository and is no longer updated.
Stars123
Updated1 month ago
LicenseUnknown
Release2026
Genre: 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
Sporadic
Active
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
Stars115
Updated2 months ago
LicenseUnknown
Release2018
Genre: Turn-Based Strategy
Theme: —
Halted
Clone of Theme Hospital
CorsixTH for Android, a port of CorsixTH that needs the original Theme Hospital files or the demo.
Stars115
Updated1 year ago
LicenseUnknown
Release2012
Genre: Strategy
Theme: Management
Halted
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
Genre: Turn-Based Strategy
Theme: Fantasy
Halted
Active
Original game image
Original game imageClone of Planet Blupi
Official repo for 1997's Planet Blupi, preserving the original source code under Git tags alongside ongoing development.
Platforms:WindowsLinux
Stars108
Updated2 months ago
LicenseUnknown
Release2017
Genre: Real-Time Strategy
Theme: —
Active
Clone of Civilization II
A from-scratch C#/Raylib rewrite of Civilization II that can load saves and move units, but core gameplay isn't complete yet.
Platforms:WindowsLinuxOSX
Stars107
Updated3 months ago
LicenseGPL-3.0
Release2020
Genre: Turn-Based Strategy
Theme: —
Active
Clone of Allegiance
Free Allegiance is an open-source project built with Visual Studio and DirectX, split into client, server, lobby, and logic components.
Halted
Original game image
Original game imageClone of Magic: The Gathering
The 1997 Magic: The Gathering video game Shandalar, with community-added cards through 2015.
Active
Clone of Transport Tycoon
A free, open-source transport simulator inspired by Transport Tycoon, with swappable community graphics packs and online multiplayer.
Platforms:WindowsLinuxOSX
Stars100
Updated2 months ago
LicenseUnknown
Release2022
Genre: Strategy
Theme: Management
Active
Sporadic
Active
Archived
Clone of Warcraft: Orcs & Humans
A from-scratch, multiplatform port of Warcraft: Orcs & Humans using only the original art and level data; now archived.
Platforms:Windows
Stars80
Updated2 years ago
LicenseMIT
Release2015
Genre: Real-Time Strategy
Theme: Fantasy
Archived
Original game image
Original game imageClone of Space Rangers 2: Dominators
An archived, partially complete open-source engine for Space Rangers 2 that needs files from the "Reboot" release.
Active
Clone of Dark Reign: The Future of War
A work-in-progress OpenRA mod recreating Auran's 1997 RTS Dark Reign, using content from the free demo.
Platforms:WindowsLinuxOSX
Stars75
Updated3 months ago
LicenseGPL-3.0
Release2018
Genre: Real-Time Strategy
Theme: Sci-Fi