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
Heaven Will Be Mine
HEAVEN WILL BE MINE is a visual novel about making terrible life decisions in the midst of a hot-blooded battle between giant robots. Select one of three terribly behaved girls to fight and/or make out with each other in their struggle for the fate of space.
War Tech Fighters
War Tech Fighters - the space action game that combines the spectacular action of Japanese Anime with Hollywood Blockbusters. Configure, upgrade and customize your War Tech and dive into battle to fight back the Zatronian forces and save your galaxy!
Mega Man X Legacy Collection 2
Complete the exciting Mega Man X saga with four action-packed titles! This collection showcases the evolution of the series with Mega Man X5, Mega Man X6, Mega Man X7, and Mega Man X8. Test your skills in the new X Challenge mode, which pits players against two deadly bosses at once.
Mega Man X Legacy Collection
Mega Man X Legacy Collection includes the legendary 16-bit titles and the series’ exciting foray into the 32-bit era: Mega Man X, Mega Man X2, Mega Man X3, and Mega Man X4. Test your skills in the new X Challenge mode, which pits players against two deadly bosses at once.
MOTHERGUNSHIP
MOTHERGUNSHIP is a bullet-hell FPS where you craft your own guns, fight gigantic bosses, and defeat a robotic alien armada that conquered Earth. Face off against overwhelming odds in brutal, non-stop combats where thinking on your feet is the only way to survive.
Warhammer 40,000: Gladius - Relics of War
Warhammer 40,000: Gladius – Relics of War brings you to a world of terror and violence. Four factions will engage in a brutal war for dominance over the planet’s resources. In the first turn-based 4X strategy game set in Warhammer 40,000 you will lead one of four unique factions.
Earthfall
NOW AVAILABLE! When the Earth falls to an extra-terrestrial invasion, humanity becomes an endangered species. Earthfall is a four-player cooperative shooter that challenges players to survive hordes of ruthless alien drones and their inscrutable masters.
Red Faction Guerrilla Re-Mars-tered
Red Faction: Guerrilla re-defines the limits of destruction-based game-play with a huge open-world, fast-paced guerrilla-style combat, and true physics-based destruction.
DERE EVIL EXE
DERE EVIL EXE is both a terrifying thriller with a gripping meta horror story and a retro 16-bit pixel platformer with unique puzzles and obstacles.
Budget Cuts
Budget Cuts is a VR stealth game where you dexterously zip, sneak or rambo your way forward through thrilling, oil-splatter filled combat!
Jurassic World Evolution
Place yourself at the heart of the Jurassic franchise and build your own Jurassic World. Bioengineer dinosaurs that think, feel and react intelligently to the world around them and face threats posed by espionage, breakouts and devastating tropical storms in an uncertain world where life always finds a way.
Warhammer 40,000: Inquisitor - Martyr
Enter the Chaos-infested Caligari Sector and purge the unclean with the most powerful agents of the Imperium of Man! W40k: Inquisitor – Martyr is a grim Action-RPG featuring multiple classes of the Inquisition who will carry out the Emperor’s will.
Fighting Fantasy Classics
Ready your sword, pack your provisions and prepare to embark upon quests in which YOU are the hero! Choose what happens at every turn of the page with Fighting Fantasy Classics – text-based roleplaying adventures remastered.
Space Hulk: Deathwing Enhanced Edition
Space Hulk: Deathwing - Enhanced Edition is a First-Person Shooter based on Games Workshop’s cult classic board game set in Warhammer 40,000 universe. Expanding upon the original game, and featuring a host of new content, new features and a richer multiplayer mode.
Quarantine Circular
In the middle of a world-ending pandemic, a group of scientists discover the galaxy has been watching. From the award-winning team behind Thomas Was Alone and Subsurface Circular, Quarantine Circular is the next mutation in text-based adventure.
STEINS;GATE 0
If you can't save the one you love… How can you save humanity? Sequel to the visual novel cult classic. Experience an alternate worldline of STEINS;GATE.
Judgment: Apocalypse Survival Simulation
Build, scavenge, craft, and perform occult rituals to survive in a demon-infested, post-apocalyptic colony simulation. Will you survive Judgment day?
Human-powered spacecraft
A nostalgia-infused pixel clicker in a comedy wrapper.
Zero-K
With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps.
BATTLETECH
Take command of your own mercenary outfit of 'Mechs and the MechWarriors that pilot them, struggling to stay afloat as you find yourself drawn into a brutal interstellar civil war.
Copy Kitty
Boki can copy the special abilities of any foe and then combine up to 3 of them into a unique super-weapon! Blast through hordes of evil robots in cyberspace, while training to become a superhero!