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Sci-fi

Science-fiction. Commonly including things like aliens, advanced technology, and settings of outer space or distant planets. 

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sci-fi

Top selling
$15 or less for Windows with Steam keys tagged Sci-fi (135 results)

135 results

Explore games for Windows with Steam keys tagged Sci-fi on itch.io. Science-fiction. Commonly including things like aliens, advanced technology, and settings of outer space or distant plan · Sell your games for Windows with Steam keys on itch.io to have them show up here.

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Intelligent Design: An Evolutionary Sandbox
$6.99
A toy ecosystem with fully simulated genetics and evolution.
Pill Bug Interactive
Simulation
GIF
Schildmaid MX
$14.99
Neutral. Shield. Danger.
HitP Studio
Shooter
Alt-Frequencies
$4.99
An audio mystery set in a time loop. Record, rewind time and broadcast snippets of radio shows!
Plug In Digital
Interactive Fiction
Eczema Angel Orifice
$5
beautiful twine compilation
Porpentine
Adventure
GIF
The Turgenev Study 🧬
$6
In bundle
Dodge and collect micro-organisms 🦠
PUNKCAKE Délicieux 🥞
Survival
Neofeud
$4.49
-70%
Cyberpunk Adventure / Visual Novel
silverspook
Visual Novel
Growing My Grandpa!
$5
Yames
Adventure
Dark Train
$9.99
steampunk vehicle adventure made of paper
Paperash Studio
Adventure
Redirection
$3.50
A 3D puzzle game about rescuing Robots stranded in outer space.
Daniel Ratcliffe
Puzzle
CTHON
$4.99
Battle the legions of the damned in the depths of space - and beyond.
GravityGames
Shooter
GIF
helionaut
$3
In bundle
open-world galaxy adventure game
Sokpop Collective
Adventure
For The Warp
$14.99
A roguelike deck-building game in space!
Massive Galaxy Studios
Strategy
GIF
ΔV: Rings of Saturn
$9.99
Hard sci-fi, top-down space simulator, with every aspect backed up by real physics and science.
Koder
Simulation
GIF
MegaSphere
$14.99
A sci-fi themed action platformer in a randomly generated world.
Anton Kudin
Platformer
GIF
REDO!
$9.99
Dark Sci-fi Metroidvania
Redo!
Action
Unending Galaxy
$8.99
2D space-sim in which you can fill any role from pilot to empire leader.
Anarkis Gaming
Simulation
GIF
SKIPCHASER
$4.99
Story-driven sci-fi fantasy shooter with procedural missions, deep weapon customization and action/adventure elements
Ponywolf
Shooter
GIF
Scavenger of Dunomini 🤖
$6
In bundle
Match-3 Trash Pile Defender
PUNKCAKE Délicieux 🥞
Puzzle
Distress: A Choice-Driven Sci-Fi Adventure
$5
Make your choices. Live with the consequences. Good luck.
Javy Gwaltney
Adventure
Captain Disaster in: Death Has A Million Stomping Boots
$10.99
A retro sci-fi comedy point and click adventure featuring the hapless Captain Disaster.
CaptainD
Adventure
Dread X Collection
$6.99
10 Tales of Terror from 10 Twisted Minds. Made in only 7 Sleepless Nights.
DreadXP
Action
GIF
Stars Die
$5
A haunting, dying world foreshadowing rebirth.
Eric Juvi
Adventure
Meganoid(2017)
$8.99
(Steam key included) a Spelunky and Meat-boy love child in space
Orangepixel
Platformer
GIF
Spectrum Forces 🏳‍🌈
$6
In bundle
Shoot-em-up with a tactical twist! 🛫
PUNKCAKE Délicieux 🥞
Shooter
Core Defense
$9.99
A roguelike tower defense game with a dash of deckbuilding.
ehmprah
Strategy
The Away Team
$8
In this interactive sci-fi adventure novel, you are the AI pilot of Earth's last interstellar ship.
Underflow Studios
Interactive Fiction
Sun Dogs
$10
In bundle
a transhumanist adventure
Royal Polygon
GIF
Power of Ten
$11.99
single star fighter trying to save as many civilians as possible before they are overrun by a marauder armada.
laikaproj
Action
GIF
Hyperspace Dogfights
$8.50
-15%
Jet-combat roguelite, occasionally with swords and 300+ other items to strap onto your jet.
sleeper_games
Action
GearHead Caramel
$10
Roguelike mecha RPG set in a world recovering from the apocalypse.
GearHead
Role Playing
Periphery Synthetic EP
$3
Extrasolar musical explorer
shiftBacktick
Simulation
Play in browser
Trappist
$15
Colonize and explore the Trappist-1 solar system in this story-driven colony builder
Sirrah
Simulation
Space Dragons
$6.90
Choose your spaceship and defeat the alien threat that comes from the Moon.
TeamBlackHatRobot
Shooter
GIF
JEF
$3.99
3rd person surreal adventure game
jeremycouillard
Adventure
TAXINAUT
$12.99
An open-world exploration game where you are a taxi-driver in space.
mosgrom
Role Playing
The Temporal Invasion (ARG)
$6.99
Do you want to feel like REAL Mystery Solver and Explorer?
Hybriona Labs
Adventure
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