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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 Action
$15 or less with Steam keys tagged Sci-fi (46 results)

46 results

Explore Action 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.

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GIF
REDO!
$9.99
Dark Sci-fi Metroidvania
Redo!
Action
Distress: A Choice-Driven Sci-Fi Adventure
$5
Make your choices. Live with the consequences. Good luck.
Javy Gwaltney
Adventure
Dread X Collection
$6.99
10 Tales of Terror from 10 Twisted Minds. Made in only 7 Sleepless Nights.
DreadXP
Action
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
Space Dragons
$6.90
Choose your spaceship and defeat the alien threat that comes from the Moon.
TeamBlackHatRobot
Shooter
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
Tier 1
$4.99
A 2D space combat game
Zillo7
Action
GIF
Aerannis
$4.99
A stealth-action metroidvania
ff
Action
Circus Interstellar
$9.99
Escape an intergalactic circus from Hell!
Ettinsoft
Action
Escape from Terror City
$9.99
Tales of the Renegade Sector
Shooter
GIF
Dr. Spacezoo (Early Access)
$14.99
Dr. Spacezoo is an arcade style time-attack twin-stick shoot-em-up packed full of gibs and grease for 1-4 players.
SmashRiot
Action
GIF
CreatorCrate
$4.99
A slapstick rampage. Outsmart everything that wants you dead with your grabby robot arm. Improvise and CREATE!
CreatorCrate
Platformer
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
Feral Fury
$6.99
Fast-paced twin stick shooter rogue-lite action
Skandivania Games
Action
Operation KREEP
$2.99
In space no one can hear you KREEP
Spidi
Action
GIF
Ninja Outbreak
$9.99
Survive the Horror of the Ninja
Tales of the Renegade Sector
Action
Kill the Superweapon
$7.99
Twin-Stick Action Game Where Bosses Pursue the Player from Room to Room
Tales of the Renegade Sector
Action
GIF
ChargeShot
$10
Shoot, reflect, and jetpack your way through ChargeShot -- a local-multiplayer, space-bounty-hunter, deathmatch game.
CowboyColor
Action
Ultra Mission™
$2.99
In bundle
THE DATE: January 12, 2081. THE LOCATION: Otto Labs headquarters. THE OBJECTIVE: Find out what the heck is going on!
Gumbo Machine, LLC
Shooter
Exile Squadron
$4.99
Defend Earth against the Colonies in this sci-fi shoot 'em up!
One Bit Studio
Action
Astral Flux
$9.99
Action platformer with roguelike elements
Cosmocat
Action
SPAGHET 2: AlDente Chapter
$9.99
You just couldn't keep your hands off of it... could you?
HeyImKeelee (TD Indie)
Action
Space Captain McCallery Ep. 3: The Weaponmaster's Challenge
$4.99
Tales of the Renegade Sector
Action
Dr. Atominus
$3.99
Metroidvania with a fun sci-fi story.
Pikku-a
Platformer
GIF
Robot Legions Reborn
$2.99
Robot-smashing Twin-stick Action
Skyboy Games
Action
GIF
∀kashicverse-Malicious Wake-
$9.99
⚠ Some parts of this game may be considered extreme bullet hell. ⚠
Endless-Shirafu
Shooter
Aliens Go Home Run
$3.99
You're too good at baseball and aliens are invading. Send them back home with a home run!
ANIM•ACE
Action
GIF
Dual Core
$9.99
Pew Pew Pew! Sci-fi action adventure!
GrayFinStudios
Action
Scrapper
$9.99
Scrapper is a free roaming, objective based, rogue-lite space flight game
Ghostbolt Games
Action
Gunborg: Dark Matters
$9.99
Take on an army of alien soldiers and killer robots
Rickard Paulsson
Action
Varion
$12.99
Blast your friends at the speed of light in this futuristic brawler where only bounce shots are lethal!
Light Maze
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
Hovercars 3077: Undeground racing
$7.99
Hovercars 3077: Undeground® is a high-octane racing game in which armed cars.
Airem
Racing
GIF
ORBIZ
$10
The undead ground is not flat anymore.
Anoman Studio
Action
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