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
S.T.A.L.K.E.R. 2: Heart of Chornobyl
Discover the vast Chornobyl Exclusion Zone full of dangerous enemies, deadly anomalies and powerful artifacts. Unveil your own epic story as you make your way to the Heart of Chornobyl. Make your choices wisely, as they will determine your fate in the end.
Rogue Command
Classic RTS gameplay fused with a modern roguelike. Shape your build each run by assembling an evolving arsenal of powerful units and facilities. Harvest resources, build out your base. Raise your army and call down orbital strikes to overcome the forces threatening your survival.
Deep Space Cache
Deep Space Cache is a short & simple semi-idle bullet heaven incremental asteroid miner game.
Bioweaver
Bioweaver is an RPG game with the main content of treasure hunting and character building. You can use basic programming logic to deeply customize your skill sets, and you can also create organs with different attributes and functions with the special crafting system.
Space Trash Scavenger
Grab your jetpack and explore procedural asteroid fields, derelict spaceships and abandoned outposts. Build and automate your Space Rig to process scavenged trash. Craft, trade and fight your way home in this interstellar, open-world survival sandbox.
Mind Over Magnet
An attractive puzzle platformer where you use magnetism to escape a factory. Meet a cast of magnet characters and work together to solve logical conundrums.
XENOTILT: HOSTILE PINBALL ACTION
LIGHTNING STRIKES AGAIN!! XENOTILT, the sequel to the cult hit, DEMON'S TILT. Get ready for another PINBALL FANTASY. XENOTILT shreds the envelope with face-melting gameplay & graphics.
Time Treker
Choose your pilot and build your own custom mecha with 17+ weapons and 55+ attachments, then jump to the battlefield against hundreds of enemies to save spacetime itself in this thrilling sci-fi bullet heaven!
ZEPHON
From the developers of Warhammer 40,000: Gladius, ZEPHON is a post-apocalyptic 4X strategy game built on Proxy’s unique tactical combat system. Guide survivors through a turbulent future, navigating unexpected disasters, eldritch horror and cyberpunk monstrosities. What will you do to survive?
Techtonica
Techtonica is a first-person factory automation game with a gripping mystery about mining your way out from the depths of an alien planet. Explore bioluminescent caves, mold destructible terrain, construct a massive subterranean factory. Dig your way toward answers & discover the secrets of Calyx.
Empire of the Ants
Conquer enemy nests and lead your colony through the perils of the forest in this groundbreaking RTS. Empire of the Ants is a photorealistic, third-person real-time strategy game where you command your insect legions in epic battles.
Horizon Zero Dawn™ Remastered
Experience the critically acclaimed Horizon Zero Dawn™ with stunning new visuals and upgraded features. In a far future where colossal machines roam the Earth, pockets of humanity survive in unique tribes among the lush, overgrown ruins of our long-lost civilization.
Moon Mystery
The Moon's haunted - and when an astronaut loses contact with Earth, the adventure begins in full. Fill up your oxygen, load up the guns, and set out on an interstellar FPS adventure across the stars, filled with puzzles, fights, exploration, and strange secrets of the universe.
NIMRODS
Assemble a limitless arsenal in this survive-em-up roguelite shooter. As a Gun Manufacturer's testing force, your mission is simple: test the latest gun tech and scavenge alien planets. Collect insane weapon parts to invent crazy guns that slay thousands. You may not survive, but your guns will!
AWAKEN - Astral Blade
Weave your own story in this dark fairy tale. In the mysterious ancient ruins, you will adventure with Tania to reveal her origins and fate. Is there any chance of survival in the darkest and desperate place?
Nuclear Nightmare
Venture forth as part of a specialized team of fellow players tasked with retrieving classified materials, evading the black goo virus, and the nightmarish entities it has spawned. With time running out before the US government initiates a devastating nuclear strike to contain the spreading menace.
MechWarrior 5: Clans
In MECHWARRIOR 5: CLANS, players become new Smoke Jaguar pilots in the Clan Invasion of the Inner Sphere. Lead a five-mech "Star" squad across diverse planets, engaging in an expansive campaign with immersive gameplay and intricate combat. Customize BattleMechs and explore strategic options.
Eden Crafters
Embark on a journey of survival, crafting, and automation in Eden Crafters, a solo and co-op open-world game that challenges you to turn a hostile planet into a habitable haven for humanity. Temper the climate, create a breathable atmosphere, and turn toxic lakes into water: shape a new world!
I've Fallen For You!
Eight women simultaneously appear in your life, offering you unconditional love and support! Will you choose to uphold your beliefs and become a good man, or give in to human temptations and become a bad man?
Europa
On the moon Europa, a lush terraformed paradise in Jupiter’s shadow, an android named Zee sets out in search of answers. Run, glide and fly across the landscape, solve mysteries in the ruins of a fallen utopia, and discover the story of the last human alive.
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!