Free & Open Source Simulation Games
256 free, open-source simulation 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
Original game image
Original game imageClone of Stardew Valley
A decompiled release of Stardew Valley's source code, currently unplayable in its present state.
Halted
Clone of Super Star Trek
A remake of the 1978 strategy game Super Star Trek, reimagined with the bridge-crew command interface of Star Trek: 25th Anniversary.
Platforms:WebWindowsLinux
Stars1
Updated1 year ago
LicenseUnknown
Release2025
Genre: Simulation
Theme: Sci-Fi
Halted
Original game image
Original game imageClone of Star Trek
A C# port of the classic Star Trek text game, based on a community BASIC rewrite, including multiple translated and rewritten versions.
HaltedOriginal game image
Original game imageClone of Star Trek
Platforms:WindowsLinuxOSX
Stars0
Updated4 years ago
LicenseUnknown
Release2022
Genre: Simulation
Theme: Sci-Fi
Halted
Clone of Solaris
Source code said to be the original 1986 Atari 2600 game Solaris, preserved via RomHacking.net.
Halted
Sporadic
Clone of Wars of Napoleon
The preserved original DOS source code for W.R. Hutsell's Napoleonic Wars wargame, kept unedited for history.
Halted
Clone of World War II In Western Europe
The preserved original DOS source code for W.R. Hutsell's Second World War strategy wargame, kept unedited for history.
Original game image
Original game imagePlatforms:Classic Mac OS
LicenseUnknown
Genre: Educational
Theme: —
Original game imagePlatforms:None
LicenseUnknown
Genre: Educational
Theme: —
Original game imagePlatforms:Game Gear
LicenseUnknown
Genre: Action
Theme: —
Original game imageClone of Lost Dutchman Mine
