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Top paidwith Steam keys tagged Sci-fi (113 results)

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A first person exploration science fiction mystery game. Fathom all the story exploring an abandoned cargo spaceship.
Adventure
GIF
Become famously incredible or incredibly dead in this choose-your-own-space-adventure!
Adventure
In this interactive sci-fi adventure novel, you are the AI pilot of Earth's last interstellar ship.
Adventure
Old-School FPS/Metroidvania Hybrid. Step through a portal to a mysterious world.
Shooter
The hidden unit board game of strategy and cunning
Strategy
GIF
Squad-based roguelike - marines on a steampunk spaceship.
Strategy
God game with fully simulated genetics and evolution.
Simulation
GIF
A stealth-action metroidvania
Action
STARDROP
$19.99
STARDROP - Salvage and Rescue Operations
Adventure
GIF
Jet-combat roguelite, occasionally with swords.
Action
surreal exploration game set within a divine monument
Adventure
Scrapper is a free roaming, objective based, rogue-lite space flight game
Action
a transhumanist adventure
Cyberpunk Adventure / Visual Novel
Visual Novel
A roguelike tower defense game with a dash of deckbuilding.
Strategy
BEACON
$19.99
Sci-fi Action Roguelite. Collect DNA from enemies and mutate yourself to victory!
Action
2D space-sim in which you can fill any role from pilot to empire leader.
Simulation
beautiful twine compilation
Adventure
GIF
open-world galaxy adventure game
Adventure
A 3D puzzle game about rescuing Robots stranded in outer space.
Puzzle
Please try to keep our robots alive . They've been through enough...
Puzzle
GIF
Steam Marines 2 - a steampunk tactics game
Strategy
CTHON
$4.99
Battle the legions of the damned in the depths of space - and beyond.
Shooter
steampunk vehicle adventure made of paper
Adventure
A roguelike deck-building game in space!
Strategy
CrossCode
$19.99
A retro-inspired 2D Action-RPG set in the distant future
Role Playing
GIF
Hard sci-fi, top-down space simulator, with every aspect backed up by real physics and science.
Simulation
(Steam key included) a Spelunky and Meat-boy love child in space
Platformer
GIF
REDO!
$9.99
Dark Sci-fi Metroidvania
Action
GIF
Sipho
$13.99
Design a creature and eat your way to the top of the food chain.
Simulation
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