Free "science fiction" games
Play games defined by keyword "science fiction" sorted alphabetically by title.
GAME SETTING - Exploration in deep space, mech battles, cyberpunk lovestories, UFO invasions. Every theme even remotely tied to science fiction has been implemented in a video game one way or another. Free games make no exception; from Star Trek to Star Wars, developers still draw much inspiration from sci-fi.
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Amiga
Amstrad CPC
Android
Apple II
Atari ST
Commodore 64
DOS
Free BSD
Linux
Mac OSX
Nintendo Switch
PlayStation 2
PlayStation 4
Sega Genesis
UNIX
Windows
Xbox
Xbox One
browser
iOS
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Katakis
shooter / shoot 'em up
Factor 5
Kosmonaut
action / racing
Bluemoon Interactive
Last Defense 2 100%
shooter / shoot 'em up
16BitSoft
M.A.R.S. - a Ridiculous Shooter
shooter / arcade
Simon Schneegans
Major Stryker
shooter / shoot 'em up
Apogee
Maniac Mansion Deluxe
adventure / point & click
LucasFan Games
Maniac Mansion Mania - Episode 1: Sibling love
adventure / point & click
LucasFan Games
Marathon
shooter / first-person shooter
Bungie Software
Marathon 2: Durandal
shooter / first-person shooter
Bungie Software
Marathon Infinity
shooter / first-person shooter
Bungie Software
Mars Tomorrow
strategy / MMORTS
Game Fabrik
MDDClone
simulation
MDDClone Team
MechWarrior Online
shooter / MMOFPS
Piranha Games
Microsoft Allegiance
simulation / space combat
Microsoft Game Studios
Missile Wave 2
shooter / arcade
S64 Games
Missile Wave 3D
shooter / arcade
S64 Games
Monuments of Mars
platformer / run and gun
3D Realms
Mutant Factions
shooter
Nik Nak Studios
Naev
shooter / space exploration
Naev Team
Nitronic Rush
action / racing
Team Nitronic
Noctis
simulation / space exploration
Alessandro Ghignola