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Top selling paidthat last about a half-hour with Steam keys tagged Sci-fi (34 results)

34 results

Explore games that last about a half-hour 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 that last about a half-hour with Steam keys on itch.io to have them show up here.

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An audio mystery set in a time loop. Record, rewind time and broadcast snippets of radio shows!
Interactive Fiction
beautiful twine compilation
Adventure
A 3D puzzle game about rescuing Robots stranded in outer space.
Puzzle
Hard sci-fi, top-down space simulator, with every aspect backed up by real physics and science.
Simulation
Neutral. Shield. Danger.
Shooter
10 Tales of Terror from 10 Twisted Minds. Made in only 7 Sleepless Nights.
Action
Shoot-em-up with a tactical twist! 🛫
Shooter
Brigador
$24.99
Isometric Mech Action
Action
Colonize and explore the Trappist-1 solar system in this story-driven colony builder
Simulation
Sipho
$17.99
Design a creature and eat your way to the top of the food chain.
Simulation
TAXINAUT
$12.99
An open-world exploration game where you are a taxi-driver in space.
Role Playing
Steam Marines 2 - a steampunk tactics game
Strategy
Tier 1
$4.99
A 2D space combat game
Action
S.O.R.S
£6.99
A sci-fi doctor simulation game
Simulation
Ironseed
$14.99
Ironseed 25th Anniversary Edition
Role Playing
A slapstick rampage. Outsmart everything that wants you dead with your grabby robot arm. Improvise and CREATE!
Platformer
surreal exploration game set within a divine monument
Adventure
Squad-based roguelike - marines on a steampunk spaceship.
Strategy
Lose yourself in The Silent Age, the thrilling point-and-click adventure.
Adventure
Dual Control Action Puzzle Adventure!
Puzzle
Adventure / exploration / puzzle game. The player is stuck in a time loop. DEMO.
Adventure
Play in browser
Survive the Horror of the Ninja
Action
THE DATE: January 12, 2081. THE LOCATION: Otto Labs headquarters. THE OBJECTIVE: Find out what the heck is going on!
Shooter
Card battling... HACKED!
Card Game
Pew Pew Pew! Sci-fi action adventure!
Action
Bionic Attack is a fast paced Real Time Strategy game.
Strategy
Battle your way across the solar system, master your enemies. There is no quarter, only the cold emptiness of space...
Strategy
Science fantasy action roguelike top-down shooter
Action
The hardest sci-fi shooting sidescroller
Adventure
Real-time tactics meets cosmic horror - remotely command a squad of outcasts as they delve the husks of derelict ships.
Action
Turn-based tactical puzzle game about drones fighting beasts.
Puzzle
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