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Top selling$5 or less with Steam keys tagged Sci-fi (30 results)

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GIF
open-world galaxy adventure game
Adventure
beautiful twine compilation
Adventure
A 3D puzzle game about rescuing Robots stranded in outer space.
Puzzle
CTHON
$4.99
Battle the legions of the damned in the depths of space - and beyond.
Shooter
GIF
Story-driven sci-fi fantasy shooter with procedural missions, deep weapon customization and action/adventure elements
Shooter
Make your choices. Live with the consequences. Good luck.
Adventure
An audio mystery set in a time loop. Record, rewind time and broadcast snippets of radio shows!
Interactive Fiction
Tier 1
$4.99
A 2D space combat game
Action
GIF
A stealth-action metroidvania
Action
Your crew mutinied and now you're stranded on an alien world. Low-Poly Action-Adventure game.
Action
The Atomic Robbery
Adventure
Be the coolest pizza delivery shop in the Jovian system!
Shooter
In space no one can hear you KREEP
Action
GIF
Twin-Stick'n it until your thumbs bleed!
Shooter
Rogue-like, Sci-fi, Squad Based, Cave Diving, Platformer
Platformer
Explore a mysterious half-sunken ruin on an alien world in this Low-Poly Action-Adventure game!
Action
DriftForce is a super fast endless racing game.
Racing
Defend Earth against the Colonies in this sci-fi shoot 'em up!
Action
You're too good at baseball and aliens are invading. Send them back home with a home run!
Action
GIF
Robot-smashing Twin-stick Action
Action
Controlling a drone, exploring beautiful but dangerous Sci-fi maze, revealing a weird meme story of the future world.
Adventure
A bizarre point-and-click RPG adventure!
Visual Novel
Captain a small crew on a life-long mission where you're just as likely to find a cold end as you are love.
Visual Novel
Explore the cosmos as a comet, orbiting planets with a realistic gravity system.
Adventure
Dropship Down is a fun and intense twin-stick alien shooter for up to four players.
Action
Jaxon The Thief is a 2D Stealth Platformer based on the story of an infamous thief called Jaxon.
Platformer
It is a 2D Old School Scifi themed platform action game based on the story of the Alien called Zack Y .
Platformer
Retro arcade style space blasting fun!
Action
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