Hidden Sci-fi Games on Steam
Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated sci-fi games. For those who prefer not to search, check out lists of the most played, top deals and best free to play Sci-fi games on Steam.
Filters & Lists
Cozy Space Survivors
A cozy time survival roguelite in space. You steer the shippy while the shooting happens automatically. Meet cute NPCs, solve small quests, and fight quirky enemies with satisfying weapons. A shorter experience for people who don't have much time but love playing (and finishing) games.
SaGa Emerald Beyond
FORGE YOUR OWN TALE The latest standalone entry in the SaGa franchise, SaGa Emerald Beyond, brings together the very best elements of the beloved series to offer each player their own unique gameplay experience.
MEGATON MUSASHI W: WIRED
Launch a counteroffensive to take back the Earth from alien invaders in this mecha action RPG.
Harold Halibut
Harold Halibut is a handmade narrative game about friendship and life on a city-sized spaceship submerged in an alien ocean. Join Harold as he explores a vibrant retro-future world in his quest to find the true meaning of ‘home’.
Revival: Recolonization
Set in a post-apoc version of Earth, Revival is a 4x strategy game where the world and its rules can change at key moments, creating a deep and highly replayable experience.
Anomaly Collapse
Command a squad of adorably fierce warriors in Anomaly Collapse, a turn-based Roguelite strategy game that offers a fresh twist to an old formula! Face off against otherworldly beings and uncover the dark secrets of supernatural calamities. Immerse yourself in a story where every move counts!
Underspace
The spiritual successor to Freelancer with a Lovecraftian, sandbox RPG twist. Explore a vast handmade universe with Day 1 mod support and a planned PvP/co-op multiplayer on the Early Access roadmap. You're going to need a bigger ship.
Void Whispers
Assume the role of a broadcast engineer in a tranquil city. All seems peaceful until the sky above starts to reveal something deeply unsettling.
SENTRY
SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.
Bears In Space
Unleash your inner bear in this over-the-top bullet-hell FPS! Embark on a zany retro-futuristic adventure and destroy oil-thirsty robots with an outrageous arsenal. Transform into a bear, wield unique powers, and embrace the absurd fast-paced action of Bears in Space!
Raw Metal
Infiltrate the depths of an exoplanet mining facility to scavenge for gear and challenge a corrupt megacorporation. Utilize gadgets and equipment in high-stakes stealth, and hone your fighting skills in breakneck combat in this stylish stealth-action dungeon crawler.
Contra: Operation Galuga
The legendary Contra series returns! This reimagining of the classic run-'n'-gun action game from the ‘80s features new stages, new enemies, new play mechanics, and co-op combat for up to 4 players!
Subterrain: Mines of Titan
Awaken from an abandoned stasis pod and discover a doomed mining camp on Titan in an uncompromising turn-based survival RPG. Survive the evolving horrors that lurk below and craft equipment, research new gear, fight against overwhelming odds, or even discover your true fate.
Duelists of Eden
Build a deck and battle online in real-time action with rollback netcode!
Sid Meier's Alpha Centauri™ Planetary Pack
Sid Meier's Alpha Centauri™ Planetary Pack includes the original Alpha Centauri and the expansion, Alien Crossfire.
Berserk Boy
BERSERK BOY is a high speed action packed Platformer, with Metroidvania elements. Packed with vibrant and stylish pixel art. Go Berserk! as you change into different forms and use the power of Lightning, Fire, Ice, Air, and Earth to save the planet!
Craftomation 101: Programming & Craft
You land on a frozen planet in a tiny rocket with a robot inside. Harvest and combine materials to discover new ones. Use visual programming to make the robot do the tiresome work for you. Slowly build a gang of self-sustaining robot workers and watch them terraform the planet.
Free Stars: The Ur-Quan Masters
Experience the award-winning space saga. Travel to hyperspace, discover alien worlds, and meet an eclectic cast of characters. Find out what happened after the Ur-Quan invasion. And if the war still rages, fight for Earth and the Alliance of Free Stars!
Ultros
ULTROS is a psychedelic metroidvania where you wake up stranded on The Sarcophagus — a cosmic uterus holding an ancient, demonic being. Trapped in the loop of a black hole, you will have to explore The Sarcophagus and meet its inhabitants to understand the part you play...
Sputnika Game
A Cosmic twist on a Suika-style game with space gravity. Help our little friend Sputnik on his journey to become the Sun.
Kitten Burst
Kitten Burst is an Adventure/Racing Game about a Flying Cat set in the year 200X. Explore Sites on the Web, Race through Circuits, & Battle Bullet Hell Bosses to Save Cyberspace.