Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles
Jobs

Top selling$15 or less with Steam keys tagged Sci-fi (102 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.

New itch.io is now on YouTube!

Subscribe for game recommendations, clips, and more

beautiful twine compilation
Adventure
Cyberpunk Adventure / Visual Novel
Visual Novel
GIF
open-world galaxy adventure game
Adventure
GIF
Become famously incredible or incredibly dead in this choose-your-own-space-adventure!
Adventure
10 Tales of Terror from 10 Twisted Minds. Made in only 7 Sleepless Nights.
Action
In this interactive sci-fi adventure novel, you are the AI pilot of Earth's last interstellar ship.
Interactive Fiction
GIF
Jet-combat roguelite, occasionally with swords.
Action
A roguelike deck-building game in space!
Strategy
GIF
You never know what will be the last thing you say to someone.
Role Playing
CTHON
$4.99
Battle the legions of the damned in the depths of space - and beyond.
Shooter
GIF
A haunting, dying world foreshadowing rebirth.
Adventure
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
God game with fully simulated genetics and evolution.
Simulation
2D space-sim in which you can fill any role from pilot to empire leader.
Simulation
GIF
Story-driven sci-fi fantasy shooter with procedural missions, deep weapon customization and action/adventure elements
Shooter
GIF
Hard sci-fi, top-down space simulator, with every aspect backed up by real physics and science.
Simulation
GIF
REDO!
$9.99
Dark Sci-fi Metroidvania
Action
Make your choices. Live with the consequences. Good luck.
Adventure
(Steam key included) a Spelunky and Meat-boy love child in space
Platformer
A retro sci-fi comedy point and click adventure featuring the hapless Captain Disaster.
Adventure
A roguelike tower defense game with a dash of deckbuilding.
Strategy
a transhumanist adventure
An audio mystery set in a time loop. Record, rewind time and broadcast snippets of radio shows!
Interactive Fiction
A first person exploration science fiction mystery game. Fathom all the story exploring an abandoned cargo spaceship.
Adventure
You, the player, are an ambassador for Earth sent through a mysterious portal into the world of dragons.
Visual Novel
GIF
Sipho
$13.99
Design a creature and eat your way to the top of the food chain.
Simulation
Do you want to feel like REAL Mystery Solver and Explorer?
Adventure
Tier 1
$4.99
A 2D space combat game
Action
Loading more games...
itch.io now on YouTube!