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
ARCADE GAME SERIES: GALAGA
First appearing in arcades in 1981, the masterpiece GALAGA finally comes to Steam! Move the fighter left and right and destroy the waves of incoming aliens!
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.
Spaceport Hope
A huge hand-crafted world packed with 13 unique bosses, a gripping story, and tons of enemies, Spaceport Hope is the ultimate test of gaming prowess.
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.
Job Simulator
In a world where robots have replaced all human jobs, step into the "Job Simulator" to learn what it was like 'to job'.
Hyper Light Drifter
Explore a beautiful, vast and ruined world riddled with dangers and lost technologies.
Tasty Planet: Back for Seconds
Control a tiny ball of grey goo with the ability to eat anything smaller than itself. The more it eats, the bigger it gets! Eat rats, dinosaurs, gladiators, samurai, pyramids, volcanoes... Everything! Soon you'll be eating the entire planet.
STAR WARS™: Rogue Squadron 3D
It is a time of great rejoicing in the galaxy. Luke Skywalker, with the help of Wedge Antilles, has blown up the Death Star. But there is little time to celebrate. The mighty Empire is gathering strength for a determined, all-out assault on the Rebel forces.
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.
The Descendant
In THE DESCENDANT, the end of the world is only the start. With what remains of humanity protected in underground Ark facilities, your mission is to keep survivors alive, while discovering a far greater conspiracy buried within Ark-01.
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.
Out There Somewhere
You play an explorer stranded on a dangerous alien planet. Low on fuel, your only hope for escape is to find the planet’s core in this incredibly clever action-puzzle-platformer.
Star Realms
Star Realms is a hugely popular space combat deckbuilding game. Download and play today (note: base set is required to play online) to find out why Star Realms is the winner of SXSW 2014 Board Game of the Year, 7 Golden Geek Awards from BoardGameGeek, and 2 Dice Tower awards!
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.
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.
STAR WARS™ Galactic Battlegrounds Saga
Lead the great armies of the Star Wars™ Episode II: Attack of the Clones saga in intense real-time strategy clashes. Enter the fray as the Galactic Empire, Rebel Alliance, Wookies, Trade Federation, Gungans or Royal Naboo to determine the course of the Galactic Civil War.
STAR WARS™ Rebellion
It is a time of great upheaval. The first Death Star has been destroyed, marking a major victory for the Rebellion. But the Empire remains strong. As commander, you must choose to take control of either the Rebel Alliance or the Galactic Empire. Your goal: complete domination of the galaxy.
Lucy -The Eternity She Wished For-
If there was a robot that could laugh, cry and smile. ...Does it have a soul?
Master of Orion 2
Forge an empire in a universe where population growth is stripping away planetary resources. Colonize unknown planets and trade with other races for their knowledge.