Gratuitous Space Battles
The first ever auto-battler game, from way back in 2009Who needs backstory? Who needs resource-gathering? Diplomacy is so last year. Gratuitous Space Battles cuts right to the chase of sci-fi strategy games, and deals with large, completely unjustified space battles between huge opposing space fleets.
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AI War: Fleet Command
"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...
Machinarium
Machinarium is the award-winning independent adventure game developed by the makers of Samorost series, Botanicula and CHUCHEL. Help Josef the robot save his girlfriend Berta kidnapped by the Black Cap Brotherhood gang!
STAR WARS Jedi Knight: Dark Forces II
Jedi Knight: Dark Forces II picks up where the award-winning Dark Forces™ game left off...with even more features and firepower in dazzling 3D graphics. As Kyle Katarn, you must acquire a lightsaber and learn the ways of the Force to become a Jedi Knight.
Fallout Tactics: Brotherhood of Steel
Tactical Squad-Based Combat comes to the Fallout® Universe! You are the wretched refuse. You may be born from dirt, but we will forge you into steel. You will learn to bend; if not you, will you break. In these dark times, the Brotherhood - your Brotherhood - is all that stands between the rekindled flame of civilization and the howling,...
Fallout 2: A Post Nuclear Role Playing Game
Fallout® 2 is the sequel to the critically acclaimed game that took RPG'ing out of the dungeons and into a dynamic, apocalyptic retro-future. It's been 80 long years since your ancestors trod across the wastelands.
Osmos
Enter the ambient world of Osmos: elegant, physics-based gameplay, dreamlike visuals, and a minimalist, electronic soundtrack. Your objective is to grow by absorbing other motes. Propel yourself by ejecting matter behind you. But be wise: ejecting matter also shrinks you. Relax - good things come to those who wait.
Red Faction
JOIN THE REVOLUTION! Lured to Mars by the Ultor Corporation's promise of a better life, thousands have come to seek their fortune and work for the massive mining company. But all is not as it seems. A deadly plague is sweeping through the barracks, and miners suffer daily abuse at the hands of the Ultor guards.
STAR WARS Republic Commando
You are the leader of an elite squad of Republic Commandos, your mission is to infiltrate, dominate, and ultimately, annihilate the enemy. Your squad will follow your orders and your lead, working together as a team - instinctively, intelligently, instantly. You are their leader. They are your weapon.
Alien Shooter 2: Reloaded
This is the unique alloy of arcade action and RPG elements which combines well-established world of classical games and unmatched dynamics of the first part.
Alien Shooter
The endless darkness and the somber, long passages of a military complex have become the abode of evil, thousands of blood-thirsty creatures fill its offices, storehouses and mysterious laboratories. About 1,000 monsters on each map, showing up to 100 monsters simultaneously on one playing screen.
NecroVision
War is Hell. NecroVision is a first-person shooter that takes gamers across the frantic battlegrounds of World War I and into a dark underworld of vampires, demons and dark magic.
Zeno Clash
Zeno Clash is an action/fighting game set in a punk fantasy world. The game is played from a first person perspective and the combat is generally up close and brutal. Experience a deep storyline set in a fantastic world.
Judge Dredd: Dredd vs. Death
Welcome to Mega-City One, a city of over 400 million people - every one of them a potential criminal. It is the third decade of the 22nd Century, unemployment is widespread, boredom is universal and only the Judges can prevent total anarchy. Empowered to dispense instant justice, they are Judge, Jury and Executioner all in one.
Warhammer 40,000: Dawn of War II - Anniversary Edition (Classic)
All of Warhammer 40,000: Dawn of War II in one package. Play the award-winning real-time strategy game in all its glory, including three full campaigns, six multiplayer factions, and a full co-op Last Stand mode with eight unique heroes.
F.E.A.R. 2: Project Origin
Assume the role of Special Forces Sgt. Becket as your routine mission quickly turns into a fight for survival against the wrath of Alma Wade. As Alma's terrifying power surges out of control, your squad is forced to battle through an apocalyptic landscape in search of clues for how to destroy her!
Mirror's Edge
In a city where information is heavily monitored, couriers called Runners transport sensitive data. In this seemingly utopian paradise, a crime has been committed, & you are being hunted. You are a Runner called Faith and this innovative first-person action-adventure is your story.
Dead Space (2008)
You are Isaac Clarke, an engineer on the spacecraft USG Ishimura. You're not a warrior. You're not a soldier. You are, however, the last line of defense for the remaining living crew.
Mass Effect (2007)
As Commander Shepard, you lead an elite squad on a heroic, action-packed adventure throughout the galaxy.
Defense Grid: The Awakening
Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.
Fallout 3
Vault-Tec engineers have worked around the clock on an interactive reproduction of Wasteland life for you to enjoy from the comfort of your own vault. Included is an expansive world, unique combat, shockingly realistic visuals, tons of player choice, and an incredible cast of dynamic characters.
X3: Terran Conflict
It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!
Multiwinia
Multiwinia is a fast-paced, retro-inspired RTS that blends arcade action with strategic depth. Command armies of Multiwinians in multiplayer battles across vibrant, nostalgic environments. With simple controls and dynamic gameplay, it offers endless fun and challenge for players of all skill levels.
S.T.A.L.K.E.R.: Clear Sky
S.T.A.L.K.E.R.: Clear Sky – standalone prequel for the acclaimed S.T.A.L.K.E.R.: Shadow of Chernobyl, which tells you story about the Clear Sky group, that want to research the Zone and understand it better.
X-COM: UFO Defense
You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace.
X-COM: Apocalypse
There's something evil in the city tonight... Earth has been ravaged by human excess, petty conflict and alien invasion. The world's population has been herded into huge cities, the first of which was Mega Primus. 2084: A Utopia shattered, social collapse and civil unrest reigns in Mega Primus. Fiendish aliens terrorize the city.
Oddworld: Abe's Exoddus
Abe's peaceful retirement was shattered when visited by a vision from the Mudokon Spirit Guides. Abe™ learned the Magog Cartel was mining Necrum, the sacred Mudokon city of the dead, to collect bones to make super-addictive SoulStorm Brew.
Darkstar One
Darkstar One offers a fantastic amount of freedom of choice. The story-based missions gradually lead you deeper into the galaxy to new races, new technologies and ever stronger opponents. Explore a vast array of solar systems in search of hidden artifacts of ancient races, essential objects for upgrading your ship--the Darkstar One.
BioShock
BioShock is a shooter unlike any you've ever played, loaded with weapons and tactics never seen. You'll have a complete arsenal at your disposal from simple revolvers to grenade launchers and chemical throwers, but you'll also be forced to genetically modify your DNA to create an even more deadly weapon: you.
Warhammer 40,000: Dawn of War - Anniversary Edition (Classic)
All of Warhammer 40,000: Dawn of War in one glorious package. Play the genre-defining classic real time strategy game in all its blood-soaked glory, including four complete campaigns and nine full-fledged factions.
Return to Castle Wolfenstein
World War II rages and nations fall. The Nazis are twisting science and the occult into an army capable of annihilating the Allies once and for all. As US Army Ranger William “B.J.” Blazkowicz, pierce the black heart of the Third Reich and stop them...or die trying.
Quake II
You are humanity’s last hope to stop the Strogg, a hostile alien race waging war against Earth. Play this military sci-fi FPS, now upgraded for modern platforms with improved visuals, new campaign content, online multiplayer/co-op, and more.
Quake
Developed by the award-winning id Software, Quake® is the ground-breaking, original dark fantasy first-person shooter that inspires today’s retro-style FPS games. With Quake (Enhanced), experience the authentic, updated, and visually enhanced version of the original.
DOOM + DOOM II
Developed by id Software, and originally released in 1993 and 1994, the definitive, newly enhanced versions of DOOM + DOOM II are available as a combined product.
Most played sci-fi games
Discover top-rated Sci-fi Steam games and hidden indie gems
Finding quality Sci-fi experiences on Steam can be challenging with hundreds of new releases every month. Wasdland filters through the noise by analyzing real-time user reviews, player satisfaction metrics, and historical pricing data. Instead of raw store dumps, this curated selection brings together 1879 of the most relevant titles currently available.
Whether you are looking for widely acclaimed hits like Apex Legends and HELLDIVERS 2, or searching for undiscovered indie gems, our catalog helps you find the best value for your next play session. Compare live Steam game discounts with entry prices starting at 0.13€, track community ratings, and explore handpicked Sci-fi recommendations. All updated continuously in one streamlined catalog.