Cloned Games

Free & Open Source RTS Games

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

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Clone of Blood & Magic

This repository preserves the official 1996 interactive preview demo of Blood & Magic, including a tutorial and two scenarios.
Platforms:WindowsDOS
Stars25
Updated17 days ago
LicenseUnknown
Release2016
Halted
OpenRedAlert screenshot

Clone of Command & Conquer: Red Alert

A partially complete C++/SDL rebuild of the Red Alert 1 engine, based on FreeCNC and FreeRA, that needs the original data files.
Platforms:WindowsLinux
Stars25
Updated11 years ago
LicenseGPL-2.0
Release2015
Active
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Clone of Enemy Nations

A source-code revival and SDL2 port of Enemy Nations to modern Windows, Linux, and macOS, with restored music and TCP/UDP multiplayer.
Platforms:Windows
Stars22
Updated11 days ago
LicenseUnknown
Release2022
Theme: —
Sporadic
No preview

Clone of Warrior Kings

A from-scratch, multiplayer-capable rewrite of the wkbre Warrior Kings engine reimplementation, still in early development.
Platforms:WindowsLinux
Stars22
Updated5 months ago
LicenseGPL-3.0
Release2019
Theme: —
Sporadic
BBTools screenshot

Clone of Beasts and Bumpkins

A small collection of utilities for Beasts and Bumpkins, including a MAPViewer and SpriteViewer plus documentation of its file format.
Platforms:Windows
Stars21
Updated11 months ago
LicenseGPL-3.0
Release2017
Halted
wkbre screenshot

Clone of Warrior Kings

An engine reimplementation of Warrior Kings (Battles) for editing and building custom maps; gameplay is still in development.
Platforms:Windows
Stars20
Updated2 years ago
LicenseGPL-3.0
Release2016
Theme: —
Halted
No preview

Clone of Seven Kingdoms II: The Fryhtan Wars

An experimental fork of the 7kfans GPL release of Seven Kingdoms II replacing DirectX/DirectPlay/DirectSound with SDL2, ENet, and OpenAL.
Platforms:Linux
Stars19
Updated10 years ago
LicenseUnknown
Release2012
Halted
No preview
Platforms:Windows
Stars17
Updated3 years ago
LicenseMIT
Release2018
Active
Gardens of Kadesh screenshot

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
Archived
No preview

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

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
Active
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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
Halted
No preview

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
Halted
Warcraft 2000: Nuclear Epidemic screenshot

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
Halted
No preview

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
Active
No preview

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
X-Settlers screenshot

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
Halted
FreeCNC screenshot

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
Halted
Savage: The Battle for Newerth screenshot

Clone of Savage: The Battle for Newerth

The official archived source code release of Savage: The Battle for Newerth, preserved via the Internet Archive.
Platforms:Windows
Stars1
Updated2 years ago
LicenseUnknown
Release2024
Genre: FPS
Theme: Fantasy
Halted
opene2140 screenshot

Clone of Earth 2140

An early, not-yet-playable C++ reimplementation of the 1997 RTS Earth 2140 that uses the original game files.
Platforms:LinuxOSX
Stars1
Updated3 years ago
Licensegpl-3.0+
Release2020
Active
Tremulous screenshot
Platforms:WindowsLinuxOSX
Stars0
Updated29 days ago
LicenseGPL2, CC-BY-SA*
Release2026
Genre: FPS
Theme: Sci-Fi
0 A.D. screenshot
Platforms:WindowsLinuxOSX
LicenseGPL2, CC-BY-SA*
After Protocol screenshot
Platforms:Windows
LicenseUnknown
Arrakis screenshot

Clone of Dune 2

Platforms:DOS
LicenseUnknown
No preview
Platforms:Windows
LicenseUnknown
Theme: —
Dark Oberon screenshot
Platforms:WindowsLinux
LicenseGPL2*
No preview
Platforms:Windows
LicenseMIT*
Theme: —
Dune Legacy screenshot
Platforms:WindowsLinuxOSX
LicenseGPL2*
FreePop screenshot
Platforms:None
LicenseGPL2*
Gigalomania screenshot
Platforms:WindowsLinuxOSX
LicenseGPL2*
Theme: —
Glest Advanced Engine screenshot
Platforms:WindowsLinux
LicenseGPL2*
Herzog 3D screenshot
Platforms:None
LicenseGPL2*
Theme: —
No preview
Platforms:Atari
LicenseUnknown
Theme: —
OpenPop screenshot
Platforms:Windows
LicenseGPL3*
Theme: —
No preview
Platforms:TI calculator
LicenseUnknown
No preview
Platforms:WindowsLinux
LicenseGPL2*
Theme: —
No preview
Platforms:Windows
LicenseUnknown
Zed Online screenshot

Clone of Z

Platforms:Windows
LicenseGPL3*
Zod Engine screenshot

Clone of Z

Platforms:WindowsLinux
LicenseGPL3*

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