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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

Singleplayer

Games that can be played alone

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single-player

Top
with Steam keys tagged Sci-fi and Singleplayer (55 results)

55 results

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

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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
BEACON
$19.99
Mutate yourself to victory as you scavenge an uncharted alien planet in this stylish sci-fi action rogue-like.
monothetic
Action
Growing My Grandpa!
$5
Yames
Adventure
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
STARDROP
$14.99
STARDROP - Salvage and Rescue Operations
Joure
Adventure
GIF
Schildmaid MX
$14.99
Neutral. Shield. Danger.
HitP Studio
Shooter
GIF
Steam Marines 2
$25
Steam Marines 2 - a steampunk tactics game
WorthlessBums
Strategy
GIF
REDO!
$9.99
Dark Sci-fi Metroidvania
Redo!
Action
GIF
helionaut
$3
In bundle
open-world galaxy adventure game
Sokpop Collective
Adventure
Beyond Sunset Demo
A cyberpunk action RPG
Metacorp
Shooter
Unending Galaxy
$8.99
2D space-sim in which you can fill any role from pilot to empire leader.
Anarkis Gaming
Simulation
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
GIF
Bezier (PC)
$9.99
The mindless blaster with a big heart.
Thalamus Digital Publishing Ltd.
Action
Spirits of Xanadu
$4.99
An atmospheric first person shooter set aboard a deserted starship in an alternate 1980s.
allen
Action
For The Warp
$14.99
A roguelike deck-building game in space!
Massive Galaxy Studios
Strategy
GIF
SKIPCHASER
$4.99
Story-driven sci-fi fantasy shooter with procedural missions, deep weapon customization and action/adventure elements
Ponywolf
Shooter
Angels with Scaly Wings
$9.99
You, the player, are an ambassador for Earth sent through a mysterious portal into the world of dragons.
M. B. Saunders
Visual Novel
Gunborg: Dark Matters
$9.99
Take on an army of alien soldiers and killer robots
Rickard Paulsson
Action
The Silent Age
$9.99
Lose yourself in The Silent Age, the thrilling point-and-click adventure.
Meridian4
Adventure
Space Grunts 2
$9.99
(Steam key included) Fastest turn-based card battle roguelike
Orangepixel
Destination Ares
$9.99
You're running out of resources; everything is breaking. Keep your crew alive.
Stralor
Simulation
Interstellar Space: Genesis
$9.89
-67%
An epic turn-based space 4X strategy game and spiritual successor to Master of Orion II: Battle at Antares!
Praxis Games
Strategy
Space Captain McCallery Ep. 2: Pilgrims in Purple Moss
$4.99
Explore a mysterious half-sunken ruin on an alien world in this Low-Poly Action-Adventure game!
Tales of the Renegade Sector
Action
TAXINAUT
$12.99
An open-world exploration game where you are a taxi-driver in space.
mosgrom
Role Playing
GIF
CreatorCrate
$4.99
A slapstick rampage. Outsmart everything that wants you dead with your grabby robot arm. Improvise and CREATE!
CreatorCrate
Platformer
The Evolving World: Catalyst Wake
$6.99
After three apocalyptic events known as the "Catalysts", what remains of humanity fights for peace.
LockedOn
Visual Novel
Bewildebots
$7.99
Please try to keep our robots alive . They've been through enough...
JadeusGames
Puzzle
Pizzarian
$3.99
Be the coolest pizza delivery shop in the Jovian system!
Jeddy
Shooter
Core Defense
$9.99
A roguelike tower defense game with a dash of deckbuilding.
ehmprah
Strategy
Robothorium
$14.99
Robothorium is a futuristic turn-based, rogue-like RPG
Goblinz Studio
Role Playing
Astral Flux
$9.99
Action platformer with roguelike elements
Cosmocat
Action
GIF
Robot Legions Reborn
$2.99
Robot-smashing Twin-stick Action
Skyboy Games
Action
Exile Squadron
$4.99
Defend Earth against the Colonies in this sci-fi shoot 'em up!
One Bit Studio
Action
DOUBLE INVASION!!
$7.99
Guide an army of nano-bots through your alien organs to solve puzzles and cure your infected body!
Goose Ladder Games
Puzzle
Retool
$7.99
3D puzzle game where you try to escape incomplete orbital defense stations by hacking into computers.
Hut 90
Puzzle
Solar Rogue
$15
Tactical Roguelike Space Adventure
ombarus
Strategy
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