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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martiandreams-

Ultima Worlds of Adventure 2: Martian Dreams

RPG / old school RPG
Origin Systems
xonotic-

Xonotic

shooter / first-person shooter
Team Xonotic
alien-swarm-

Alien Swarm

shooter / run and gun
Valve
nitronic-rush-

Nitronic Rush

action / racing
Team Nitronic
dreamweb-

Dreamweb

adventure / point & click
Creative Reality
onescapee-

onEscapee

platformer / run and gun
Invictus Games, Ltd.
space-quest-2-vga-

Space Quest 2: Vohaul's Revenge VGA

adventure / point & click
Infamous Adventures
starcraft-2-

StarCraft II

strategy / real-time strategy
Blizzard
trascendence-

Trascendence

simulation / space exploration
Kronosaur Productions
turbo-raketti-

Turbo Raketti

shooter / shoot 'em up
Heikki Kosola
abuse-

Abuse

platformer / run and gun
Crack dot Com
alien-assault-

Alien Assault

strategy / turn-based tactics
Teardown
ark22-

Ark 22

adventure / JRPG
HiVE
new-adventures-of-zak-mckracken-

The New Adventures of Zak McKracken

adventure / point & click
LucasFan Games
galaxy-fantabulous-

Adventures in the Galaxy of Fantabulous Wonderment

adventure / point & click
Ben 'Yahtzee' Croshaw
iji

Iji

platformer / metroidvania
Daniel Remar
armagetron-advanced-

Armagetron Advanced

action / racing
ArmagetronAd.org
command-and-conquer-

Command & Conquer

strategy / real-time strategy
Virgin Interactive
endless-sky-

Endless Sky

action / space exploration
Michael Zahniser
free-orion-

FreeOrion

strategy / 4X
FreeOrion project
mutant-factions-

Mutant Factions

shooter
Nik Nak Studios

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