Free & Open Source Alternate Historical Games
9 free, open-source alternate historical games — real clones and remakes you can download, inspect the source of, and modify.
Active

Clone of S.T.A.L.K.E.R.
A community-improved X-Ray Engine for S.T.A.L.K.E.R. with 64-bit support, bug fixes and Linux/macOS ports.
Platforms:Windows
Stars3,559
Updated11 days ago
LicenseUnknown
Release2014
Genre: FPS
Theme: Alternate Historical
Active

Clone of The Settlers II
Widelands is a free, open-source RTS inspired by The Settlers II, with singleplayer campaigns, multiplayer, and Lua-scripted scenarios.
Platforms:WindowsLinuxOSX
Stars3,061
Updated11 days ago
LicenseGPL-2.0
Release2019
Genre: Real-Time Strategy
Theme: Medieval
Active

Clone of The Settlers II
A community-maintained reimplementation of The Settlers II adding internet multiplayer, reusing the original's graphics and sound.
Platforms:WindowsLinuxOSX
Stars588
Updated16 days ago
LicenseGPL-2.0
Release2013
Genre: Real-Time Strategy
Theme: Medieval
Active

Clone of Victoria II
A rewrite of the open-source Victoria II engine clone Open V2, requiring the original game's files to run.
Platforms:WindowsLinux
Stars547
Updated13 days ago
LicenseGPL-3.0
Release2023
Genre: Real-Time Tactics
Theme: Alternate Historical
Active

Clone of Victoria II
An in-development Godot 4 open-source project based on Paradox's Victoria II, not yet playable.
Platforms:WindowsLinuxOSX
Stars471
Updated14 days ago
LicenseMIT
Release2023
Genre: Real-Time Tactics
Theme: Alternate Historical
Halted

Clone of Alone in the Dark 2
A from-scratch reimplementation of the Alone in the Dark engine, requiring the original games' data files to run.
Archived
No preview
Clone 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
Updated9 months ago
LicenseMIT
Release2018
Genre: Real-Time Strategy
Theme: Ancient History
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
Halted

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