Best 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.
Filters & Lists
Loading...
Axiom Verge
Explore and uncover the mystery of a surreal alien world by blasting aliens and glitching your environment in this intense retro side-scrolling action/adventure.
Galactic Civilizations III
Build a civilization that will stand the test of time in the largest space-based strategy game ever! Choose from dozens of unique races and make a name for yourself across the galaxy through diplomacy, espionage, technological advances, and more.
Invisible, Inc.
Take control of Invisible's agents in the field and infiltrate the world's most dangerous corporations. Stealth, precision, and teamwork are essential in high-stakes, high-profit missions, where every move may cost an agent their life.
Wolfenstein: The Old Blood
Wolfenstein®: The Old Blood™ is a standalone prequel to the critically acclaimed first-person action-adventure shooter, Wolfenstein®: The New Order. This adventure spans eight chapters and features the hallmarks of MachineGames – thrilling action, immersive story, and intense FPS combat.
STAR WARS™ - X-Wing Alliance™
A neutral family fights for its business - and its survival - and is swept up in the struggle against the encroaching Empire. You must defy the strong-arm tactics of a rival family who will stop at nothing to destroy your trading company.
STAR WARS™ - X-Wing Special Edition
Against the overwhelming might of the Empire stands a small but growing Rebel Alliance. Scattered resistance groups are uniting and what is needed most now are Starfighter pilots. Will you join their struggle to end this tyranny and become a hero of the Rebellion?
Kerbal Space Program
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
Environmental Station Alpha
Explore an abandoned space station in this retro-themed explorative action platformer.
JumpJet Rex
Test your dinosaur jump-jet skills with a game that redefines the platformer genre, aptly renaming it "platflyer." Simply put, you're a t-rex with rocket boots trying to save earth from an incoming asteroid. Do you have what it takes to stop it?
Convoy
Convoy is a tactical roguelike-like inspired by Mad Max and FTL in which you cross a wasteland in search of parts for your broken ship. Presented in pixel art and set in a future post-apocalyptic setting, Convoy is a squad based tactical combat roguelike-like in its core.
Halo: Spartan Strike
Halo: Spartan Strike makes you a Spartan supersoldier battling evil forces. Delve into 30 challenging missions through cities and jungles using a devastating arsenal of weapons, abilities and vehicles including the iconic Warthog against the Covenant and Promethean enemies. *DirectX feature level 10 required*
Elite Dangerous
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
Sun Blast: Star Fighter
Sun Blast is the best 3d space shooter on Steam. Earn upgrades as you fight your way through a huge seleciton of levels. Full gamepad support!
Out There: Ω Edition
Out There is an award-winning space exploration game blending roguelike, resource management and interactive fiction.
VoidExpanse
Explore the vast reaches of VoidExpanse -- mine asteroids, upgrade your ship, trade, complete missions, advance your character and survive fast-paced combat with hostile aliens and mercenaries in the rich and exciting Sci-Fi universe of VoidExpanse!
The Spatials
It's the year 5781 -- and you have been chosen to build and lead a space station in a wild corner of the galaxy! Attract visitors and explore hundreds of planets to fund your station.
Star Ruler 2
Massive scale 4X-RTS set in space. Control hundreds of planets, manipulate galactic politics, research numerous advanced technologies, and command thousands of units and hundreds of planets in your quest for galactic dominance.
Spirits of Xanadu
At the farthest edge of the explored universe, the research ship Xanadu slumbers in orbit around a mysterious planet. Her systems remain active but there has been no message from her crew for months. Now a lone operative has been sent to wake the Xanadu and bring her home to Earth.
Requiem: Desiderium Mortis
Requiem: Desiderium Mortis is a Free-to-Play MMORPG set in a dark distant world where an event known as the "Thanatos Incident" rendered the world almost unlivable. Create your own biological weapon known as a Temperion and experience the horrors that grip Ethergia.
Republique
Help a woman named Hope escape in a thrilling and topical stealth-action game that explores the perils of government surveillance in the Internet Age.