35 Action · Character Customization · Space games your group can play together online, including Zombie Assault: Resurgence, Space Station: Beyond, and Aliens: Fireteam Elite 2.
All games: 24
Zombie Assault: Resurgence is an intense, action packed top-down shooter, featuring deep RPG elements. Customise your loadout with unique upgradeable weapons as you gear up to take on hordes of enemies. Play solo or team up in co-op with up to 4 players.
Play as a variety of creatures or characters and try to survive either maintaining or attacking a space station while everything that can go wrong has already gone wrong.
This is a fight for survival. Xenomorphs swarm in overwhelming numbers. Every room could be your last.
Void Crew is a Chaotic, Co-op Roguelite game for 1 to 6 players: Outfit your spaceship and crew for thrilling quests, brave fierce enemies in Space Battles... and try not to panic!
The year is 2182, but the engine is from 2003. Join the Falling Falcons in a massive tactical deathmatch RP fest held together by spaghetti code and duct tape. Build bases, perform surgery, or evolve as the Hive. It's laggy, it's complex, and it is the most fun you will have dying in space.
Explore the Koronus Expanse with up to five friends in online co-op, then share a six-character party through tactical battles, ship combat, and one Lord Captain’s story decisions.
Stranded on a barren moon with nothing but your tools, fuelless ship, and celestial powers of creation, you are destined to recreate what was once lost and be the hero of your own Little Universe! Don't forget to call in up to three of your friends to join your journey in the Splitscreen Co-op Mode!
A fiercely formidable sci-fi survival game, set on a hostile alien world that wants you dead! Alone, or with a crew, do you have what it takes to survive?
The fastest racing game in the universe. Redout 2 is a tribute to classic arcade racing games and the sequel to the critically acclaimed Redout. Reach impossible speeds in exhilarating futuristic races across an extensive single-player campaign and competitive multiplayer.
Aliens: Fireteam Elite is a cooperative third-person survival game set in the iconic Alien Universe. Battle through hordes of different types of Xenomorph, customize your character and gear, and level-up as you try to contain this ever-growing threat.
The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits
CryoFall is a sci-fi colony simulation survival game set on a forgotten planet in a distant future. Master technology, agriculture, trading, industry, cybernetics, exploration, and more!
Be the hero in the ultimate STAR WARS™ battle fantasy with STAR WARS™ Battlefront™ II: Celebration Edition!
MARS is a Free-To-Play Third Person Shooter set in an evolving sci-fi world. From the hilarious Headhunter mode, to Huge Mecha vs Mecha battles, to fully customizable loadouts; whether Co-op or PvP, M.A.R.S. has something for everyone. Kill, Die, Repeat.
Return to the Mass Effect universe & lead the first humans in Andromeda on a desperate search for our new home.
Earth is burning. The Reapers have taken over and other civilizations are falling like dominoes. Lead the final fight to save humanity and take back Earth from these terrifying machines, Commander Shepard.
Take command of your own mercenary outfit of 'Mechs and the MechWarriors that pilot them, struggling to stay afloat as you find yourself drawn into a brutal interstellar civil war.
Space Hulk: Deathwing - Enhanced Edition is a First-Person Shooter based on Games Workshop’s cult classic board game set in Warhammer 40,000 universe. Expanding upon the original game, and featuring a host of new content, new features and a richer multiplayer mode.
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
LEGO Star Wars III: The Clone Wars will allow fans to explore endlessly and laugh their way through the Star Wars galaxy in the most humorous, accessible and action-packed LEGO game to date.
Over 20 years of legendary space battles! Explore a massive living universe of danger and opportunity in a challenging and highly rewarding space adventure. Fight, trade, build, and connect with a universe driven and shaped directly by players.
Moonbreaker is a turn-based strategy, tactical skirmish game. The game is designed to be a true digital miniatures experience, set in an expansive sci-fi universe crafted by Brandon Sanderson. Direct Captain and Crew in gripping, ever-changing competition and adventure.
Ripout is an online Co-Op horror FPS that will have players fight their way through procedurally generated derelict ships filled with mutants capable of reconfiguring their alien bodies. Survive with your trusty Pet Gun companion, collect loot, and customize your character to fit your playstyle.
Battle for survival against endless alien hordes with your friends! The Anacrusis is a first-person shooter that dynamically adjusts difficulty to you. Experience intense 1-4 player co-op action or play as the aliens and stop your friends in 1-8 player Versus mode. Full Steam Workshop support!