Cloned Games

Free & Open Source Sci-Fi Games

489 free, open-source sci-fi games — real clones and remakes you can download, inspect the source of, and modify.

The Ur-Quan Masters screenshot
The Ur-Quan Masters

Clone of Star Control 2

Platforms:WindowsLinuxOSX
LicenseGPL2*
Genre: Adventure
Theme: Sci-Fi
Thrust screenshot
Thrust

Clone of Thrust

Platforms:Linux
LicenseGPL2*
Genre: Arcade
Theme: Sci-Fi
No preview
Trust & Betrayal

Clone of Trust & Betrayal: The Legacy of Siboot

Platforms:Classic Mac OS
LicenseUnknown
Genre: Educational
Theme: Sci-Fi
No preview
Turrican III

Clone of Mega Turrican

Platforms:Amiga
LicenseUnknown
Genre: Platform
Theme: Sci-Fi
UFO2000 screenshot
UFO2000

Clone of X-COM: UFO Defense

Platforms:WindowsLinux
LicenseGPL2*
Genre: Strategy
Theme: Horror
UFO: Alien Invasion screenshot
UFO: Alien Invasion

Clone of X-COM: UFO Defense

Platforms:WindowsLinuxOSX
LicenseGPL2*
Genre: Strategy
Theme: Horror
Uridium Advance + Paradroid (GBA Source and Builds) screenshot
Uridium Advance + Paradroid (GBA Source and Builds)

Clone of Paradroid

Platforms:GBA
LicenseUnknown
Genre: Shmup
Theme: Fantasy
WING screenshot
WING

Clone of Galaga

Platforms:WindowsLinuxDOS
LicenseGPL2*
Genre: Action
Theme: Sci-Fi
No preview
Wipeout

Clone of Wipeout

Platforms:PS
LicenseUnknown
Genre: Racing
Theme: Sci-Fi
X-Force: Fight For Destiny screenshot
X-Force: Fight For Destiny

Clone of X-COM: UFO Defense

Platforms:Windows
LicenseGPL2*
Genre: Strategy
Theme: Horror
No preview
XGalaga

Clone of Galaga

Platforms:Linux
LicenseGPL2*
Genre: Action
Theme: Sci-Fi
XGalaga++ screenshot
XGalaga++

Clone of Galaga

Platforms:LinuxOSX
LicenseGPL2*
Genre: Action
Theme: Sci-Fi
ZDoom screenshot
ZDoom

Clone of Doom

Platforms:WindowsLinuxOSX
LicenseBSD*
Genre: FPS
Theme: Sci-Fi
No preview
Zandronum

Clone of Doom

Platforms:WindowsLinuxOSX
LicenseUnknown
Genre: FPS
Theme: Sci-Fi
Zed Online screenshot
Zed Online

Clone of Z

Platforms:Windows
LicenseGPL3*
Genre: Real-Time Strategy
Theme: Sci-Fi
Zod Engine screenshot
Zod Engine

Clone of Z

Platforms:WindowsLinux
LicenseGPL3*
Genre: Real-Time Strategy
Theme: Sci-Fi
glFFE screenshot
glFFE

Clone of Elite III

Platforms:Windows
LicenseUnknown
Genre: Action
Theme: Sci-Fi
miscom screenshot
miscom

Clone of Missile Command

Platforms:Linux
LicenseGPL2*
Genre: Arcade
Theme: Sci-Fi
No preview
reone

Clone of Star Wars: Knights of the Old Republic

Platforms:WindowsLinuxOSX
LicenseGPL3*
Genre: RPG
Theme: Sci-Fi
No preview
spacewar-sdl

Clone of Spacewar!

Platforms:WindowsLinux
LicenseGPL2*
Genre: Action
Theme: Sci-Fi
No preview
xspacewarp

Clone of Space Warp

Platforms:Linux
LicenseUnknown
Genre: —
Theme: Sci-Fi

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