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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Battlecruiser 3000AD
simulation / space exploration
3000AD

Her tears were my light
adventure / visual novel
NomnomNami

Last Defense 2 100%
shooter / shoot 'em up
16BitSoft

Marathon Infinity
shooter / first-person shooter
Bungie Software

Monuments of Mars
platformer / run and gun
3D Realms

Rocket!
action / arcade
HiVE

Jetz Rampage 3: Fusion
shooter / shoot 'em up
S64 Games

Jetball!
action / arcade
Satan Sam

TeraBlaster
shooter / shoot 'em up
Black Shell Games

Thrust
action / arcade
S64 Games

Pew Dew Redemption
action
Enki

Robocop 2D 3
shooter / run and gun
Park Productions

TAGAP 2
platformer / run and gun
Penguin Developement Team

TAGAP
platformer / run and gun
Penguin Developement Team

Missile Wave 2
shooter / arcade
S64 Games

Jetz Rampage 4: Revenge
shooter / shoot 'em up
S64 Games

Robocop 2D 2: Robocop vs Terminator
shooter / run and gun
Park Productions

Robocop 2D
shooter / run and gun
Park Productions

Missile Wave 3D
shooter / arcade
S64 Games