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.

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Fallout 3: Game of the Year Edition Prepare for the Future™ With Fallout 3: Game of the Year Edition, experience the most acclaimed game of 2008 like never before. Create a character of your choosing and descend into an awe-inspiring, post-apocalyptic world where every minute is a fight for survival.

Price -67% 6.59€
Rating 8.0
Release 17 Dec 2009
STAR WARS™ - The Force Unleashed™ Ultimate Sith Edition A game that will show gamers the deepest, darkest side of the Force in a story that puts them on a collision course with Luke Skywalker himself.

Price 19.50€
Rating 7.4
Release 15 Dec 2009
Serious Sam HD: The First Encounter Serious Sam HD: The First Encounter is a visually upgraded and fully Steam supported remake version of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS which was Gamespot's Game of the Year 2001 and which scored overall of 87% on Metacritic!

Price -83% 2.57€
Rating 9.1
Release 24 Nov 2009
Gratuitous Space Battles Who 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.

Price 14.79€
Rating 6.9
Release 16 Nov 2009
LEGO® Star Wars™ - The Complete Saga Kick Some Brick in I through VI! Play through all six Star Wars movies in one videogame! Adding new characters, new levels, new features and for the first time ever, the chance to build and battle your way through a fun Star Wars galaxy on your PC!

Price 19.50€
Rating 9.4
Release 12 Nov 2009
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...

Price -93% 0.69€
Rating 7.9
Release 21 Oct 2009
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!

Price -96% 0.88€
Rating 9.3
Release 16 Oct 2009
Command & Conquer: Red Alert 3 - Uprising Red Alert 3: Uprising features four new mini-campaigns, giving players a deeper dive into the storyline's of the Soviets, the Allies, the Empire of the Rising Sun and a unique campaign centered on the origins of everyone’s favorite psionic Japanese schoolgirl commando, Yuriko Omega.

Price -36% 7.77€
Rating 8.1
Release 06 Oct 2009
MDK ON A GOOD DAY, ONLY 2.5 MILLION PEOPLE WILL DIE. As vast alien mining cities suck the power and minerals from every major metropolis on Earth simultaneously, time is of the essence as millions of civilians are expiring by the second.

Price 9.99€
Rating 7.4
Release 17 Sep 2009
STAR WARS™ Jedi Knight II - Jedi Outcast™ The Legacy of Star Wars Dark Forces™ and Star Wars® Jedi Knight lives on in the intense first-person action of Jedi Outcast.

Price 9.75€
Rating 8.8
Release 16 Sep 2009
STAR WARS™ Jedi Knight - Jedi Academy™ Forge your weapon and follow the path of the Jedi Jedi Knight: Jedi Academy is the latest installment of the highly acclaimed Jedi Knight series. Take on the role of a new student eager to learn the ways of the Force from Jedi Master Luke Skywalker.

Price 9.75€
Rating 9.3
Release 16 Sep 2009
STAR WARS™ Dark Forces (Classic, 1995) Behind a veil of secrecy the evil Empire is creating a doomsday army - one that, if finished, will become the final cog in the Empire's arsenal of terror and domination. Your Mission? Join the Rebel Alliance's covert operations division, infiltrate the Empire.

Price 5.89€
Rating 8.6
Release 16 Sep 2009
STAR WARS™ Jedi Knight - Mysteries of the Sith™ It is five years after Kyle's victory over the seven dark Jedi. Invading Imperial forces advance upon a quiet Rebel outpost, interrupting Kyle's training of a brave new Jedi, Mara Jade. First introduced in Timothy Zahn's award-winning Star Wars novel, Heir to the Empire, Mara Jade blends her past experiences as a one time smuggler and...

Price 2.99€
Rating 6.4
Release 16 Sep 2009
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.

Price 5.89€
Rating 7.7
Release 16 Sep 2009
STAR WARS™ Knights of the Old Republic™ It is four thousand years before the Galactic Empire and hundreds of Jedi Knights have fallen in battle against the ruthless Sith. You are the last hope of the Jedi Order. Can you master the awesome power of the Force on your quest to save the Republic? Or will you fall to the lure of the dark side?

Price 9.75€
Rating 8.9
Release 05 Sep 2009
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.

Price -75% 2.49€
Rating 9.2
Release 19 Aug 2009
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,...

Price -81% 1.98€
Rating 7.6
Release 19 Aug 2009
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.

Price -75% 2.07€
Rating 8.2
Release 18 Aug 2009
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.

Price -95% 0.51€
Rating 8.3
Release 05 Aug 2009
TimeShift™ Master time to become the ultimate weapon! Dr. Aiden Krone has made a Time Jump across the space-time continuum - a reckless act with frightening consequences. Now, a disturbing alternate reality has evolved within the bleak and rain-soaked Alpha District.

Price 14.99€
Rating 7.6
Release 23 Jul 2009
STAR WARS™ Battlefront II (Classic, 2005) Join the rise of Darth Vader’s elite 501st Legion of Stormtroopers as you fight through an all new story-based saga where every action you take impacts the battlefront and, ultimately, the fate of the Star Wars galaxy.

Price 9.75€
Rating 9.3
Release 08 Jul 2009
The Dig® An asteroid the size of a small moon is on a crash course toward Earth. Once the wayward asteroid is nuked into a safe orbit, a trio conducts a routine examination of the rocky surface. What they uncover is anything but routine.

Price 5.89€
Rating 8.7
Release 08 Jul 2009
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.

Price 9.75€
Rating 9.3
Release 08 Jul 2009
SPORE™ Galactic Adventures Take Your Creature From Zero To Galactic HeroGet out of your starship and turn your Spore creatures into legendary Space Captains. For the first time, beam down with your allies to take on action-packed, planetside adventures. Complete quests, collect rewards, and even create your own missions.

Price -75% 4.99€
Rating 8.6
Release 23 Jun 2009