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. 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
Galaxy Idle Clicker
Embark on an interstellar journey with Galaxy Idle Clicker! Conquer galaxies, upgrade your spaceship, and face off against a myriad of enemy ships. With engaging minigames, powerful upgrades, GIC delivers an unparalleled idle space adventure. Join the cosmic conquest today and dominate the universe!
ERA ONE
Era One is an innovative space game that combines elements of real-time strategy, base building, space survival, and tactical battles. Players can create and customize their bases from scratch, construct various types of structures and warships, manage fleets, and engage in tactical space battles.
Gatekeeper
Gatekeeper is a fast-paced rogue-like. Go on a quest to chase down Chaos and reclaim the stolen Heart of Time, fighting your way through relentless enemy forces. Play solo or in 4-player co-op and become the next Gatekeeper!
No Sleep For Kaname Date - From AI: THE SOMNIUM FILES
Iris has been abducted by aliens?! Finding herself on board a mysterious UFO and tasked with completing a bizarre escape game, Iris knows there's one person who she can always count on for help: Kaname Date, Psyncer!
Wildgate
Wildgate is a PVP multiplayer shooter that blends tactical ship-to-ship combat with fast-paced first-person action. Evade deadly environmental hazards, search for powerful weapons and ship upgrades, and be the first crew to escape with the Artifact... or the last crew left flying.
Abiotic Factor
Abiotic Factor is a survival crafting experience for 1-6 players set in the depths of an underground research facility. Caught between paranormal containment failure, a military crusade, and chaos from a dozen realms, the world’s greatest minds must survive against the universe’s biggest threats.
Drill Core
Corporate greed meets strategic planet-mining in Drill Core! Drill to the heart of planets while managing workers, researching cutting-edge tech, and fortifying against alien attacks. Will you prioritize efficiency and risk your workers' safety, or focus on defense for survival?
The Drifter
A Pulp Adventure Thriller - A murdered drifter awakens. Alive again, seconds before his death. Hunted and haunted, help him untangle a mad web of conspiracy in this fast-paced point 'n click thrill-ride.
Madoka Magica Magia Exedra
Characters from the hit anime series "Puella Magi Madoka Magica" come together! Featuring an all-new story setting and characters from the original ideas of Gekidan Inu Curry (Doroinu), experience the action alongside Magical Girl memories in this battle RPG!
Project Silverfish
Explore a hostile, living world: Uncover forgotten horrors, both man-made and supernatural, as you hunt for powerful weapons and exotic artifacts.
Spirit X Strike
An Action Adventure Game that lets you craft unique COMBOs and explore endless ways to style on your enemies with a high-speed combat system. Test your skills in fun chaotic one-vs-group battles, intense, strategic duels, and exhilarating post-apocalyptic adventure that will set your blood boiling.
FBC: Firebreak
A three-player cooperative first-person shooter set within a mysterious federal agency under assault by otherworldly forces.
Five Nights at Freddy's: Secret of the Mimic
Enter the abandoned workshop of Murray’s Costume Manor and unravel the mystery left behind by the reclusive inventor. In Five Nights at Freddy’s: Secret of the Mimic, you’ll step into a world where every dark corner holds a secret and every flicker of light hints at an ever-present threat.
The Alters
Explore an emotional sci-fi game with a unique blend of survival, adventure, and base-building elements. Help Jan Dolski, the sole survivor of an ill-fated space expedition, create alternative versions of himself to escape a hostile planet and tackle personal turmoils with this unconventional crew.
Dune: Awakening
Rise from survival to greatness and challenge the power of an Imperium in Dune: Awakening, a multiplayer survival game on a massive scale. Survive the sandworm, craft your ornithopter, build a home, and ascend to power on an open world Arrakis shared with hundreds of other players.
Cyber Knights: Flashpoint
Cyberpunk mercenaries RPG! Turn-based squad tactics with unique heist-planning strategy. Build your crew wisely; their stories will become interwoven with your own. Pull off heists with powerful cyberware, faction connections, multiclassing, weapon modding, stealth, hacking, and more!
Void War
Command an ancient starship and fight your way to the heart of a dying Empire. Fend off attacks from demented cultists, craven space pirates, and xenophobic Imperial soldiers. Discover powerful artifacts and use them to build your ship into a fearsome war engine.
POPUCOM
Venture together with your friends on an unknown planet. Use color switching, match-3 shooting, and artifact powers to overcome challenges and keep advancing. What lies ahead of you is an adventure filled with wonder, hope, and much more to discover!
Splitgate 2 Beta
Splitgate 2 is the only free-to-play shooter with portals, delivering next-level gunplay, fluid movement, and a constantly evolving experience, featuring a new Battle Royale where you can portal between unique worlds. Welcome to the future of sport.
MOBILE SUIT GUNDAM SEED BATTLE DESTINY REMASTERED
Become a pilot in the world of Mobile Suit Gundam SEED, for the first time available with English localization! Engage in thrilling, action-packed Gundam battles, complete missions, and tune up your newly acquired Mobile Suits!
Mutants: Genesis
Mutants: Genesis is an online card game that you can play solo or with up to 3 players in PvE and PvP modes! Join the next generation of Psycogs and climb the ranks to establish yourself as Champion! Collect hundreds of mutants, fashion your own deck, cooperate with or fight other players!
Bioprototype
Bioprototype, a Roguelike & Skill Customizing Rhapsody! This is an auto-bomber with programming elements. Customize your character skills with visual programming, utilize enemy organs to finish the mutation, and construct the ultimate prototype, one can survive in the endless wave of flesh.
Villages & Dungeons
A hardcore roguelite card game where deck-building strategies are at the core of everything! With a vast array of cards, random dungeons, a wealth of encounter events, and diverse enemies, it awaits your exploration and challenge.