Best Sci-fi Steam Games on Sale
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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DOOM
Now includes all three premium DLC packs (Unto the Evil, Hell Followed, and Bloodfall), maps, modes, and weapons, as well as all feature updates including Arcade Mode, Photo Mode, and the latest Update 6.66, which brings further multiplayer improvements as well as revamps multiplayer progression.
FINAL FANTASY X/X-2 HD Remaster
FINAL FANTASY X/X-2 HD Remaster celebrates two of the most cherished and beloved entries to the world-renowned franchise, completely remastered in gorgeous High Definition & now available on PC / Windows!
Stellaris
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
HordeZ
If you are looking for a on-rails arcade experience that blends between classics like Doom, Left 4 dead and House of the Dead then we got you covered! Fast and simple gameplay that will bring you into a creepy world of zombies and demons. Show your skills to the world through our global leadboard system!
Neon Chrome
A masterful combination of top-down shooter and endless replayability with procedural levels. Blast your way through walls & enemies with guns and cybernetic abilities. Install perks from cyber chambers and upgrade your character stats after each death. Can you stop the Overseer?
Offworld Trading Company
Mars has been colonized, and Earth's corporate titans fight to dominate this new market. Competition is fierce in this fast-paced economic RTS from Civilization IV Lead Designer, Soren Johnson.
OPUS: The Day We Found Earth
Dive into the boundless galaxy and embark on an emotional adventure! Help little robot Emeth to fulfill a century-old promise by finding Earth in order to save Mankind—so step into the spaceship, operate a deep space telescope, and find out what’s out there in the unknown.
Rogue Stormers
An action packed platform shooter mashed-up with roguelike and RPG elements, crazy 3D graphics and co-op multiplayer for one to 4 players.
Battlezone 98 Redux
One of the greatest sci-fi strategy games of all time returns with remastered visuals, online multiplayer and near unlimited mod content from Steam Workshop. Experience thrilling first person action and acclaimed RTS in this explosive alternate vision of the 1960s space race.
Everybody's Gone to the Rapture
Featuring a beautiful, detailed open-world and a haunting soundtrack, Everybody’s Gone to the Rapture is non-linear storytelling at its best.
Ascent - The Space Game
Ascent is a PVE sandbox space MMO with 270 BILLION star systems and an emphasis on strong Sci Fi. It encourages Exploration, Colonization, Research, Asteroid mining, Farming, Trading, and Combat. Outside the tutorial sector, everything in-game has been built by players.
Ace of Seafood
In the seas of the distant future, humans have all but disappeared. In your current, newly-awakened state, you are no more than a piece of seafood. However, you have been blessed with the talent for leading your allies into battle. Do whatever it takes to become the Ace of Seafood.
Hyper Light Drifter
Explore a beautiful, vast and ruined world riddled with dangers and lost technologies.
1993 Space Machine
Space shooters never die. 1993 is a testament to that. 1993 is a classic shoot em up celebrating games like Gradius, R-Type and Life Force.
Polaris Sector
Can anyone build an empire in a place like this? Other factions are naturally suspicious of newcomers and may wage war at the first sign of unidentified craft. Here, a natural death is an uncommon luxury.
Day of the Tentacle Remastered
Originally released by LucasArts in 1993 as a sequel to Ron Gilbert’s ground breaking Maniac Mansion, Day of the Tentacle is back in a remastered edition that features all new hand-drawn, high resolution artwork, with remastered audio, music and sound effects.
Defy Gravity Extended
Defy Gravity is an action platformer that is a mix between classic platforming and gravity based puzzle solving.
Space Pilgrim Episode IV: Sol
Locked away in the most secure prison in the galaxy, with little hope of escape, Gail Pilgrim faces the most difficult ordeals of her life. Her only hope lies in trusting those who she has come to regard as her friends.
Sunrider: Liberation Day - Captain's Edition
Liberation Day will come... but you will be betrayed. Experience the stunning continuation of Sunrider Mask of Arcadius in this hardcore turn based tactics game with heavy story elements.
SUPERHOT
SUPERHOT is the smash-hit FPS where time moves only when you move. No regenerating health bars. No conveniently placed ammo drops. It's you, alone, outnumbered and outgunned. Snatch weapons from fallen enemies to shoot, slice and dodge through a truly cinematic hurricane of slow-motion bullets.
Asteroid Bounty Hunter
Asteroid Bounty Hunter is a space shooter mixed with interesting boss fights and breathtaking visuals, with a reward system to take your skill to another level.
Battlevoid: Harbinger
Battlevoid: Harbinger is a hard sci-fi space exploration game blending roguelike, turn-based, star map strategy, and real-time space battles. You are a young commander venturing out into enemy territories, to unknown galaxies, never knowing what you will face as you jump out from hyperspace.
Californium
Taking the form of a first-person experience of a bad trip, Californium pays homage to sci-fi legend Philip K. Dick by transporting you into the life of a writer searching for his own identity. Explore, solve the riddles and conduct your investigation. Will you find what’s behind the simulacra ?
ChromaGun
Welcome to ChromaTec’s test lab! You’re here to test our state-of-the-art military-grade color-technology: The ChromaGun (patent pending)! Use it to solve our meticulously designed test chambers by painting the walls and droids. Remember how to mix colors from pre-school? Then you qualify!
TRON RUN/r
Return to the world of TRON with TRON RUN/r, a new lightning fast, action-adventure runner with a twist! Hone your DISC and CYCLE skills, then challenge the grueling STREAM program that throws endless combinations of modes and levels at you until you crash – how long can you survive?
Space Pilgrim Episode III: Delta Pavonis
Still reeling from the life-changing events of the previous episode, Gail seeks out a safe haven with her father in the Delta Pavonis system. However, she soon learns that the politics of Planet Leto can be as treacherous and unpredictable as the local weather.
XCOM® 2
XCOM 2 is the sequel to XCOM: Enemy Unknown, the 2012 award-winning strategy game of the year. Earth has changed and is now under alien rule. Facing impossible odds you must rebuild XCOM, and ignite a global resistance to reclaim our world and save humanity.
Fortified
Fortified is an explosive strategy shooter where players will defend the Earth against a menacing Martian invasion in the 1950s. Play as one-of-four pulp inspired heroes as they fight swarms of terrifying robots with an arsenal of Cold War era weapons and experimental technology.
Bit Blaster XL
Bit Blaster XL is a fast-paced, retro arcade shoot 'em up (shmup) inspired by the classic quarter-munchers of the ‘80s. Easy to pick up, hard to put down, boost, dodge, shoot, and chase high scores in this addictive, old-school action game!
Crashlands
Fight and tame alien beasts, craft resources into menacing weaponry, befriend the outlandish locals, and go toe-to-chin with a world-domineering maniac.
Subterrain
Uncompromising Sci-Fi survival on Mars! Manage the entire colony single-handed! Craft, Research, Explore and Fight against evolving mutants. Vast open world and randomly generated levels to explore! Can you survive long enough to escape the horror?
Starward Rogue
Starward Rogue is a bullet hell twin-stick shooter. Blast your way through the Megalith, a rogue-lite labyrinth lodged in the side of a star. Customize your mech with a huge variety of weapons, perks, and upgrades. Steel yourself for the dangers that lurk in the depths of the dungeon.
Homeworld: Deserts of Kharak
A ground-based RTS prequel to the classic Homeworld games. Assemble your fleet and lead them to victory on the shifting sands of Kharak in this compelling strategy game for PC from Blackbird Interactive.
The Deadly Tower of Monsters
Fire up your ray guns, crystal swords, and laser whips, and get ready for thrills and chills! With three incredible movie stars playing out decidedly B-level sci-fi exploits, Dick Starspeed, Scarlet Nova, and Robot will have you ready to jump off the side of the tower—right into adventure!
The Bug Butcher
A fast paced action shooter inspired by the arcade classic Super Pang! Use a wide selection of weapons and powerups to tear through increasingly challenging levels.