Best Sci-fi Games on Steam
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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Codex of Victory
In this sci-fi turn-based strategy with real-time base-building elements, you’ll be defending human territories against the transhuman Augments. Expand your HQ, and manufacture and upgrade an army of advanced drones to wage interplanetary war for Humanity!
Turok 2: Seeds of Evil
Having defeated the Campaigner, Turok throws the Chronocepter into a waiting volcano to destroy it. Unfortunately the blast awakens an even deadlier force - The Primagen. Once again a Turok is tasked with restoring peace to the land and stopping the Primagen from merging Earth with the nether world.
Tanki Online
Tanki Online is the free-to-play MMO-shooter with real-time PvP-battles. Throw yourself into furious tank battles shoulder to shoulder with other living players and master your skills – destroy enemy tanks, customize your futuristic armored vehicle and compete with tankers from all over the world.
DESYNC
DESYNC is an intense single-player first person action game that begs you to play dangerously and creatively. Eliminate your opponents as you perform violent attack sequences using the explosive digital weaponry and lethal side-arms at your disposal.
Stories Untold
Stories Untold is a compilation tape of four experimental adventures, including a remaster of the original hit episode “The House Abandon”.
Torment: Tides of Numenera
Torment: Tides of Numenera is the thematic successor to Planescape: Torment, one of the most critically acclaimed role-playing games of all time. Immerse yourself in a single-player, isometric, story-driven RPG set in Monte Cook’s Numenera universe. What does one life matter? Find your answer.
Dogolrax
You awake on an unknown planet with amnesia. What are those horrific monsters? Who are these mysterious priestesses? Inspired by cult classics such as "Another World", "Flashback" and others, Dogolrax aims to surprise you in ways few games have.
Pixel Privateers
Pixel Privateers is a Squad Based Tactical RPG “Loot ‘Em Up” that will send your team of mercenaries through a mysterious wormhole on a quest to gather technology for your employer. An entire galaxy awaits - full of worlds to explore, factions to encounter, and epic gear to collect!
Holy Potatoes! We’re in Space?!
Holy Potatoes! We’re in Space?! is a whacky space exploration game where you manage your very own spaceship, craft hundreds of weapons, and explore the vastness of a veggie-filled universe.
STAR WARS™ SHADOWS OF THE EMPIRE™
As Luke Skywalker and the Rebel Alliance struggle to defeat Darth Vader and the Empire, a new threat arises. Dark Prince Xizor aspires to take Darth Vader's place at the Emperor's side. As Dash Rendar, it's up to you to protect Luke and help the Alliance. May the Force be with you!
Phoning Home
A tale of survival about two shipwrecked robots - ION and ANI - on their life-defining journey in this unique genre-mix of exploration, puzzle and survival.
Evolvation
Evolvation is a casual multiplayer and fast-paced and class based space flying shooter developed by a two-man-army (Eric and Jacob) from Amsterdam. Classes are: Highspeed, Fighter, Stealth, Support and Tank. Each class has its own special ability which provides a dynamic gameplay.
GIGA WRECKER
Become more than human and save mankind from total annihilation! From legendary developer Game Freak comes an action adventure like no other - manipulate the world around you and smash the evil Ajeet to smithereens!
Angels with Scaly Wings™ / 鱗羽の天使
You, the player, are an ambassador for Earth sent through a mysterious portal into the world of dragons. Explore a town full of secrets and the people who keep them in this compelling sci-fi visual novel with slice of life and dating sim elements.
Warhammer 40,000: Sanctus Reach (Classic)
Warhammer 40,000: Sanctus Reach is a 3D turn-based strategy game like you’ve never seen before: fast, immediate, deep, impressive to look at and incredibly fun! Fight through a dark era of carnage and endless war and lead the Space Wolves in a struggle to defend the last bastion of mankind.
Stars in Shadow
Stars in Shadow is a turn-based 4X strategy game and a vivid tribute to the genre classics. Compete with alien factions to explore and colonize nearby starsystems, build fleets to defend against rivals, negotiate or conquer them. Win by unifying the galaxy, through diplomacy or force.
Galaxy Admirals
Galaxy Admirals is a multiplayer turn-based cosmic strategy with pretty innovative and challenging gameplay. Improve your command skills with AI and conquer the whole universe by fighting with real players.
Alien Shooter TD
Innovative Tower Defense inspired by legendary Alien Shooter series! The game was created in keeping with the best traditions of Sigma`s games, no concessions of any kind - everything is just like in real life!
Art of War: Red Tides
Art of War: Red Tides is a fair multiplayer strategy game that allows different teams on the same platform (e.g. smartphones, PC, etc.) to battle against each other. You will encounter players around the world!
Distant Space
Distant Space are present the arcade game of cosmic fights in arcade style of the 80's, this is a game where you can control the spaceship and forced to destroy extraterrestrials, which are moving in the certain order.
8-Bit Invaders!
8-Bit Invaders! is a fast-paced, retro Real-Time Strategy game for the PC. Control the military might of the Galactic Marine Corps or Invade with the devastating power of the Cranioids! Mine, Build, and Fight your way to victory! Conquering the Multiverse was never so easy.
Gods and Idols
Take the role of a newly ascended deity in Gods and Idols. Carve your place among the stars in an open, dynamic, and massive MMORTS universe. Command the powers of the cosmos, form alliances, and use your worshipers as instruments to further your goals.
ICEY
ICEY is a 2D side-scrolling action game and a META game in disguise. As you follow the narrator's omnipresent voice, you will see through ICEY's eyes and learn the truth about her world. The narrator will constantly urge you in one direction, but you must ask, "Why? Why am I following his directions?“ Obey? Rebel?
Ashes of the Singularity: Escalation
A massive-scale real-time strategy game where you command entire armies on a dynamic battlefield. Conquer multiple worlds across several single-player campaigns; or play with your friends in multiplayer combat.
Planet Explorers
Planet Explorers is an open world sandbox adventure RPG game set on a distant planet. The game uses a new OpenCL calculated voxel system to allow players to change the terrain in any way, create new objects such as weapons, vehicles, objects, and do it anywhere.
Rencounter
Rencounter is a difficult, turn-based, RPG, roguelike game with a mysterious atmosphere. Help your squad survive while navigating through a network of tunnels and rooms. Distribute provisions and medicine to keep them alive.
Memory's Dogma CODE:01
Japan, 2030 A.D. Memories can now be digitized and archived, allowing people to communicate with the deceased. With only one week left before his best friend’s memories are deleted, can Hiroki uncover the truth behind Sorano’s death?
House of the Dying Sun
House of the Dying Sun is a tactical space shooter that puts you in the cockpit of the universe's most terrifying starfighter. Hunt the enemies of the Empire and bring ruin to their people.
Sakura Space
Captain Shika has seen all kinds of things in her adventures throughout the universe, and with her two loyal crew members by her side, she's managed to make a name for her small company of mercenaries. When Shika finds a bounty job offering an absurd amount of money, she doesn't hesitate to act: tracking hardened criminals is part of the...
Quantum Break
From Remedy Entertainment, the masters of cinematic action games, comes Quantum Break, a time-amplified suspenseful blockbuster. The Quantum Break experience is part game, part live action show—where decisions in one dramatically affect the other.