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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

Space

The larger universe outside of Earth's atmosphere. Sometimes really, really far outside of it.

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New & popular
$15 or less with Steam keys tagged Sci-fi and Space (41 results)

41 results

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

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Sector Six
$9
Looter shoot 'em up!
Phoebii
Shooter
Trappist
$15
Colonize and explore the Trappist-1 solar system in this story-driven colony builder
Sirrah
Simulation
Reroute
$0.99
-50%
A challenging puzzle game with lasers and portals.
causantine
Puzzle
Interstellar Space: Genesis - Terrains Pack
$4.99
Praxis Games
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
Space Wave Race
3.49€
Only the true heroes of space can become champions of Space Wave Race!
RisingPixel
Racing
Interstellar Space: Genesis - Evolving Empires
$7.49
-50%
Praxis Games
Strategy
GIF
Schildmaid MX
$14.99
Neutral. Shield. Danger.
HitP Studio
Shooter
Beyond the Chiron Gate
$10
Text-based space exploration game
John Ayliff
Interactive Fiction
Stellar Monarch
$14.99
You are the Emperor, not a logistics officer. Audiences, assassins, imperial court, disloyal admirals.
Silver Lemur Games
Strategy
Interstellar Space: Genesis - Natural Law
$4.99
-50%
This expansion adds 2 new races fully equipped with unique capabilities, 9 new rulers, 4 new musics, and 4 new leaders!
Praxis Games
Strategy
For The Warp
$14.99
A roguelike deck-building game in space!
Massive Galaxy Studios
Strategy
Ironseed
$14.99
Ironseed 25th Anniversary Edition
Channel 7 Software
Role Playing
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
Starship Rubicon
$9.99
Olive
Action
Bewildebots
$7.99
Please try to keep our robots alive . They've been through enough...
JadeusGames
Puzzle
GIF
In memory of TITAN
$14.99
Battle your way across the solar system, master your enemies. There is no quarter, only the cold emptiness of space...
XR Strudios
Strategy
Little Lost Robots
$7
Winning list entry of BTP jam - A simple yet challenging puzzle game
EvilArtBunny
Puzzle
Play in browser
Intelligent Design: An Evolutionary Sandbox
$6.99
A toy ecosystem with fully simulated genetics and evolution.
Pill Bug Interactive
Simulation
Voltage
$9.99
Set in the town of Frontier, Missouri, in the 1980s, young man called Mark finds a prototype of VR-glasses.
IcanY
Shooter
Voronium - Locust Sols
$14.99
Protect the Voronium mining operation at all cost, build defense towers and operate them simultaneously. VR exclusive.
gamalocus
Shooter
Space Maze
$4.99
Controlling a drone, exploring beautiful but dangerous Sci-fi maze, revealing a weird meme story of the future world.
hoh5hc
Adventure
Starfighter Neon
$1.99
Retro arcade style space blasting fun!
Madeofdinosaurs
Action
SpaceMerc
$3
A space shooter for helping less experienced players get better.
Colin EUMP
Shooter
GIF
ChargeShot
$10
Shoot, reflect, and jetpack your way through ChargeShot -- a local-multiplayer, space-bounty-hunter, deathmatch game.
CowboyColor
Action
GIF
Catyph: The Kunci Experiment
$8.99
CATYPH is a First Person Adventure game reminscent of Myst. Visit moon Tytaah and solve the challenging puzzles.
The Icehouse
Adventure
Aeon Command
$2.99
[Steam Key Included] A tug of war strategy game, where you play as one of three unique factions.
Bat Country Games
Strategy
The Superfluous
$3.99
Rogue-like, Sci-fi, Squad Based, Cave Diving, Platformer
Voided Pixels Studio
Platformer
Destination Ares
$9.99
You're running out of resources; everything is breaking. Keep your crew alive.
Stralor
Simulation
GIF
Puzzle Nebula
$2.99
MultiverseGames
Puzzle
Out There: Omega Edition
$14.99
Out There is an award-winning space exploration game blending roguelike, resource management and interactive fiction
Plug In Digital
Shooter
Orbit HD
£2
Explore the cosmos as a comet, orbiting planets with a realistic gravity system.
Brainchild
Adventure
Sun Dogs
$10
a transhumanist adventure
Royal Polygon
Spirits of Xanadu
$4.99
An atmospheric first person shooter set aboard a deserted starship in an alternate 1980s.
allen
Action
Out There : Ω Edition
$14.99
A dark adventure in deep space
Mi-Clos Studio
Strategy
Tier 1
$4.99
A 2D space combat game
Zillo7
Action
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