426 Sci-fi · Singleplayer-games om online samen te spelen, waaronder Mega City Force, Tom Clancy’s Rainbow Six® Extraction en Guardians Frontline.
Alle games: 24
Retrowave Action Roguelike featuring tough agents battling crime to the electrifying music of artists like Droid Bishop, Timecop1983, and more! Choose your agent and dive into hardcore action against enemies and bosses, utilizing a vast arsenal and special abilities that will define your playstyle
Tom Clancy's Rainbow Six® Extraction is a tactical, co-op, PvE first-person shooter where you and your squad face an evolving alien threat. Teamwork, tactics, and flawless execution are key to your survival.
Guardians Frontline is a sci-fi VR shooter that makes you a soldier and a commander. Fight off enemies and build bases in a single-player and co-op campaign, plus PvP game modes with full cross-play support.
Step into the Arena. Compete against players from around the world in this fast-paced shooter that combines the dark mythos of the original Quake with the skill-based competition of Quake III Arena. Become a Champion.
EZ2ON REBOOT : R – The latest entry in the beloved rhythm-action franchise is now released on Steam! Revisit the huge collection of classics with remastered audiovisual. Catch up with the freshest new songs and experiences.
Action Packed Pixelated FPS! Run, Slide, and Wall-Jump your way through the battlefield! Play Team Deathmatch, Deathmatch, Duels, or Pixel Royale, where the last one standing wins! Compete in leaderboards to win exclusive items and rise to the top of the world! No Pay-To-Win. Forever.
LASERS is a brutally hard multiplayer game about surviving deadly laser mazes. Only one player can win. Will it be you?
Serious Sam: Siberian Mayhem is a new stand-alone expansion to the world of the classic FPS series. Join the fight against Notorious Mental on a journey through the wild lands of Russia, and find your way through this lost chapter of Sam Stone's adventures.
Welcome to Keplerth! Try to survive on a hostile alien planet in this 2D sandbox RPG, where you can choose to live alone or fight side by side with your friends in the online multiplayer mode. Survive, build, farm, fight, and explore your way to victory in this open-world adventure!
Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.
Use Nukes, Electricity, Heat Rays and powerful Minions in this wave-based first person shooter providing endless hours of Ghost-slaying entertainment, solo or Co-Op. Only Ghosts stand in the way of your invasion of Earth.
Assault Bots is a fast-paced multiplayer robot shooter game. Create your robot, let it drive, walk, or fly, and battle other players online in this intense shooter. Game features multiple maps and game modes.
Warhammer 40,000: Battlesector is a fast-paced turn-based strategy game set in the grimdark universe of the 41st Millennium. Pick your force, develop your army, field mighty heroes and fight for victory using superior strategy, awesome abilities, and devastating weaponry.
Hidden Deep is an atmospheric sci-fi action game heavily inspired by Aliens, The Thing, and Half-Life. Explore, climb, swim, scan, blast and shoot your way through dangerous missions in a huge sub oceanic mining and research facility. Fear the horrors that lurk below…
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.
From one of gaming's most iconic sagas, Halo is bigger than ever. Featuring an expansive open-world campaign and a dynamic free to play multiplayer experience.
SD Gundam Battle Alliance is a multiplayer Gundam action RPG where you can smash foes solo or with friends in thrilling mechanized combat. Acquire new mobile suits, power them up, and take them into battle in various missions!
EXPLORE YOUR WAY. Awoken to a world ruined by war, Alma must traverse the vast city of Arcadia before the life force of her friends and herself withers away. Time is ticking, and every moment matters. Who will you save, and who will you leave to turn UNSIGHTED?
The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.
Run your own 60s-inspired space-age alien airlines in this randomly-generated chaotic 1-to-4-player local and online co-op game!
The cult game that marked MercurySteam's origins returns; a sci-fi adventure with memorable characters, powerful ships and humor! Enjoy intense Multiplayer battles and races with ships you build.
Respawn Entertainment gives you the most advanced titan technology in its new, single player campaign & multiplayer experience. Combine & conquer with new titans & pilots, deadlier weapons, & customization and progression systems that help you and your titan flow as one unstoppable killing force.
In Nemesis: Lockdown, you're part of a team exploring an alien-infested space base. Craft, hide and fight to make it out of its dark, threat-filled corridors. Fulfill your objective even if it means betraying your allies, but remember - this time, you are not the hunter. You are the PREY.
A new EDF adventure begins! Only this time, the action unfolds in a parallel world where the Earth is made of digital blocks. This world has befallen into chaos, as the once peaceful square Earth has been shattered into pieces. Shape aside, it is an Earth nonetheless which needs to be defended.