Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles
Jobs

Top selling$15 or less with Steam keys tagged Sci-fi (83 results)

Explore games with Steam keys tagged Sci-fi on itch.io · Sell your games with Steam keys on itch.io to have them show up here.

Cyberpunk Adventure / Visual Novel
Visual Novel
A dark adventure in deep space
Strategy
GIF
Hard sci-fi, top-down space simulator, with every aspect backed up by real physics and science.
Simulation
beautiful twine compilation
Adventure
GIF
REDO!
$9.99
Dark Sci-fi Metroidvania
Action
2D space-sim in which you can fill any role from pilot to empire leader.
Simulation
steampunk vehicle adventure made of paper
Adventure
A 3D puzzle game about rescuing Robots stranded in outer space.
Puzzle
GIF
A sci-fi themed action platformer in a randomly generated world.
Platformer
CTHON
$4.99
Battle the legions of the damned in the depths of space - and beyond.
Shooter
God game with fully simulated genetics and evolution.
Simulation
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
(Steam key included) a Spelunky and Meat-boy love child in space
Platformer
a transhumanist adventure
In this interactive sci-fi adventure novel, you are the AI pilot of Earth's last interstellar ship.
Adventure
GIF
Jet Combat Roguelike, Occasionally With Swords
Action
A first person exploration science fiction mystery game. Fathom all the story exploring an abandoned cargo spaceship.
Adventure
A spectre is haunting the planet Earth...
Shooter
An audio mystery set in a time loop. Record, rewind time and broadcast snippets of radio shows!
Interactive Fiction
Fumiko!
$6.99
This gravity-defying 3D Platformer takes you on a surreal trip through a twisted virtual network.
Platformer
GIF
Sipho
$13.99
Design a creature and eat your way to the top of the food chain.
Simulation
Tier 1
$4.99
A 2D space combat game
Action
Domiverse
$12.99
The ultimate one hit brawler !
Action
Roguelike Space Shooter - Build your starship !
Shooter
Do you want to feel like REAL Mystery Solver and Explorer?
Adventure
GIF
A stealth-action metroidvania
Action
You, the player, are an ambassador for Earth sent through a mysterious portal into the world of dragons.
Visual Novel
Robothorium is a futuristic turn-based, rogue-like RPG
Role Playing
GIF
Bezier
$9.99
The mindless blaster with a big heart.
Action
Loading more games...