Best Sci-fi Games on Steam
Unlike generic lists, our game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated sci-fi games.
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Starship Troopers: Extermination
Starship Troopers: Extermination is a 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!
Finn Dorset's Institute For Livestock Replication
An animated incremental game about cloning livestock. Make as many moon sheep as you can. Research technology, upgrade your operation and become a clone farm billionaire!
Endoparasitic 2
Three limbs ripped off, infected with a deadly parasite, you must survive. Drag yourself through the hallways of an infested arcship, fight off twisted eldritch creatures, craft vaccines and ammunition, and escape to civilization.
Heroes of Science and Fiction
A turn-based sci-fi strategy that combines exploration and exciting clashes on the battlefield. Take control over several different species, raise powerful armies for your heroes and destroy your opponents! This HoMM-like is set in a scifi universe, with new mechanics on top of the classic formula.
Axon TD: Uprising - Tower Defense
Axon TD lets you expand the map boundaries themselves. A huge arsenal of towers and a wide variety of enemies clash in a battlefield that grows to your whims. Engage in single, cooperative, and roguelite gameplay.
ZERO PROTOCOL
In this immersive sci-fi thriller, you will experience the atmosphere of classic 3D games as you solve puzzles, follow an intriguing non-linear storyline, and engage in battles with monsters.
Breachway
Explore the galaxy in this deckbuilding, sci-fi roguelike where ship upgrades and crew management are key to your survival. Optimize resource generation, engage in intense turn-based battles, and take on ever-growing threats as you seek out The Signal.
The Forever Winter
The Forever Winter is a tactical shooter where you and your squad must loot the dead to survive under the shadow of terrifying and gargantuan war machines locked in a never-ending conflict. Millions of deaths later the war continues with our latest update!
Kepler-2100
Kepler-2100 is a space fantasy strategy war game
Just a To the Moon Series Beach Episode
The Beach Episode™ of To the Moon, Finding Paradise, and Impostor Factory. But something's off.
Dead Rising Deluxe Remaster
Dead Rising returns with modern graphics in this Deluxe Remaster!
Machinika: Atlas
Machinika: Atlas is an indie puzzle game and is the direct sequel to Machinika: Museum, you play as a museum researcher who just land on Atlas. Will you unravel the mysteries of the alien vessel? Solve cryptic puzzles to find out what happened!
Subside
Subside is an immersive aquatic VR experience with multiple areas to explore and lifelike aquatic creatures to interact with. Crafted with unparalleled realism, it aims to replicate the nuances of real-life swimming and diving in shallow waters
NanoApostle
NanoApostle is a dark sci-fi boss rush action game featuring intense reaction-based combat and the unique "Destruction Point" system. Play as Anita, a child augmented with lethal nanomachines, as she battles against twisted cybernetic experiments to escape a top-secret facility.
Wild Bastards
The spiritual successor to the award-winning game Void Bastards, Wild Bastards is a roguelike strategy shooter with heart-pounding FPS action, mod management, and a tactical campaign. Saddle up and lead the most notorious outlaws in the galaxy.
DeathSprint 66
Compete in a bloody fight to the finish in DEATHSPRINT 66, fusing high-speed on-foot racing with deadly obstacles and brutal abilities. Unleash your velocity, push limits, and claim glory like never before.
Satisfactory
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!
Utopia Must Fall
Defend humanity's last surviving metropolis from mysterious alien machinations in this challenging base-defense arcade shooter. Featuring rapid upgrade progression, procedurally generated attack waves, dark humor and laser-sharp aesthetics.
Warhammer 40,000: Space Marine 2
Embody the superhuman skill and brutality of a Space Marine. Unleash deadly abilities and devastating weaponry to obliterate the relentless Tyranid swarms. Defend the Imperium in spectacular third-person action in solo or multiplayer modes.
Spectre Divide
Spectre Divide is the genre-evolving, free-to-play 3v3 tactical shooter driven by Duality. Use Duality to control two bodies in real-time, letting you defend two sites at once, cover your own cross, or even trade yourself. Master tactical gunplay and an arsenal of future tech to achieve infamy.
Star Trucker
Haul cargo, trade salvage and keep your space suit close as you search for fame and fortune among the stars in a game that puts an interstellar twist on the truck sim genre.
Starcom: Unknown Space
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.
Akimbot
In the action-adventure platformer, Akimbot, blast your way through armies of robots, pilot spaceships and forge your own path to save the universe from impending doom! Set in a sci-fi world where only robots exist, travel the galaxy and experience non-stop robot mayhem and explosive action!
KAMITSUBAKI CITY ENSEMBLE
"KAMITSUBAKI CITY ENSEMBLE" is a rhythm game in which AI girls who were awoken after the apocalypse use special song magic to create melodies with you, in an effort to restart the world. How did the destruction happen? Why do these girls exist? All answers will be revealed...when the music stops.
Predecessor
Inspired by the legacy of Paragon, built with love by the community, and powered by Unreal Engine 5, Predecessor is the ultimate fusion of shooter action and MOBA strategy. Join more than 2,000,000 players and play for FREE now!
Feed the Deep
A lovecraftian roguelike. Dive into procedurally generated undersea caves. Collect gold, upgrade your equipment, and Feed the Deep.
Sins of a Solar Empire II
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
Creatures of Ava
Let your empathy guide you as you play an exciting action-adventure, creature-saver game. Understand and tame the creatures of Ava and let them lead you through a variety of ecosystems – all in the hopes of saving the planet from a life-consuming infection.
Aero GPX
Aero GPX is an anti-gravity racer focused on high velocity, flight, machine-to-machine combat, and responsive controls that are easy to pick up but difficult to master. Fight for the best position possible with high speeds, risky maneuvers, and visceral attacks!
CYGNI: All Guns Blazing
An unrelenting onslaught of eye-popping visuals, ear bursting soundscapes and mind-melting action makes CYGNI the vanguard for the next generation of shoot-em ups. Outgunned, outmanned and out on your own, plunge into a sky full of hell in a last-ditch battle for survival.
STAR WARS™: Bounty Hunter™
Bring In Your Bounty, Dead or Alive
Minds Beneath Us
MINDS BENEATH US is an emotional sci-fi narrative game. Through the eyes of a humble individual, experience a mad world where humans are exploited as computing devices for AI. Listen to the concerns of those you meet and offer guidance. Together, face challenges and confront an uncertain destiny.
Super Sus
Welcome to join the multiplayer social deduction game - Super Sus! Engage in intense gameplay with global players, as you strategize to safeguard your spaceship from the cunning Impostors determined to sabotage the mission and eliminate everyone aboard!
No Creeps Were Harmed TD
Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm. Upgrade and adapt your defenses. Become a master maze crafter. Collect bizarre artifacts. Rush creeps for lucrative rewards, and succumb to greed!