Best free Windows "science fiction" games
Play free science fiction games developed for the "Windows" operating system 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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You Have to Win the Game
platformer / metroidvania
Minor Key Games
Dark Horizons Lore: Invasion
simulation / first-person shooter
GarageGames
Retro Commander
strategy / real-time strategy
Noble Master LLC
Star Trek Online
RPG / MMORPG
Cryptic Studios
Blossoms Bloom Brightest
adventure / visual novel
Reine Works
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
WildStar
RPG / MMORPG
Carbine Studios
Alien Arena
shooter / first-person shooter
COR Entertainment
Space Station 13
RPG
Exadv1
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
Alien Swarm
shooter / run and gun
Valve
Nitronic Rush
action / racing
Team Nitronic
onEscapee
platformer / run and gun
Invictus Games, Ltd.
Space Quest 2: Vohaul's Revenge VGA
adventure / point & click
Infamous Adventures