Best free "science fiction" games
Play games defined by keyword "science fiction" sorted by user rating.
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
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Apple II
Atari ST
Commodore 64
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Linux
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Sega Genesis
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Oolite
simulation / space exploration
Oolite dev team
You Have to Win the Game
platformer / metroidvania
Minor Key Games
Dark Horizons Lore: Invasion
simulation / first-person shooter
GarageGames
Katakis
shooter / shoot 'em up
Factor 5
Retro Commander
strategy / real-time strategy
Noble Master LLC
Space Station 13
RPG
Exadv1
Star Trek Online
RPG / MMORPG
Cryptic Studios
Hawken
shooter / MMOFPS
Adhesive Games
Computer, Open That Door!
puzzle
Paul Lawitzki and Ralf Zimmer
Shadow Warrior
shooter / first-person shooter
3D Realms
Warsow
shooter / first-person shooter
Warsow Team
AliensRL
action / roguelike
Kornel Kisielewicz
POLYBOT-7
RPG / roguelike
Kyzrati
StarCraft Anthology
strategy / real-time strategy
Blizzard
WildStar
RPG / MMORPG
Carbine Studios
Alien Arena
shooter / first-person shooter
COR Entertainment
Robbo
puzzle / action puzzle
Epic MegaGames
Star Fleet II: Krellan Commander
strategy / space combat
Interstel
Star Wraith III: Shadows of Orion
simulation / space combat
Starwraith 3D Games
Ultima Worlds of Adventure 2: Martian Dreams
RPG / old school RPG
Origin Systems
Xonotic
shooter / first-person shooter
Team Xonotic