202 Sci-fi Strategy games your group can play together online, including Subspace Discovery, Slipstream: Rogue Space, and Captain Forever Trilogy.
All games: 10
Fly through Subspace, build your own ship, and engage in epic battles. Mine asteroids and research new technologies. Uncover the origins of the alien homeworld by solving weekly events in this Co-op PvE MMO.
A multiplayer roguelike about teamwork, survival...and cute animals in space! Play with a few friends or join a streamer's crew of dozens as you work together to battle aliens across the vast Rogue Space.
Millions of players worldwide have flown, built, and fought their way through Captain Forever. CF Trilogy brings Captains Forever, Successor, and Impostor to Steam with a beautiful new renderer, new modules, and a reimagined world written by acclaimed novelist Cassandra Khaw.
Parcel is a brain-twisting puzzle game where unique character abilities are used in unison to solve interlocking laser conundrums. Switch between members of your colorful team of postpeople and make your way through over 120 futuristic mind-benders!
Moduwar is an adaptive organic RTS where you control an alien creature, Modu - and your body is your army. Grow new organs, split, merge and mutate them into unique units that adapt to your needs as you fight against human and alien threats in single and multiplayer modes.
Scuffy Game is a First-Person Multiplayer party game that let's you play various minigames to play with friends (or by yourself. Your choice).
Command antique WWI Toy Soldiers in the trench-filled battlefields of Europe. Deploy an exciting arsenal of guns, artillery, flamethrowers, tanks and planes to defend your WWI toy dioramas. Take direct control of individual units or command the entire battlefield from above.
A free-to-play co-op sci-fi looter shooter where every mission changes the universe for everyone. Squad up with up to 4 friends, on the ground or in space, in real time or turn based, and push back the Void together.
Athena Crisis is a modern retro turn-based strategy game that places you in command of 40+ units in your journey across the multiverse. Embark on a challenging single-player quest or dive into the thrill of ranked or casual multiplayer modes to become the best Athena Crisis player!
Death or Glory: the ultimate duelling card game! Explore exciting realms that are the proving grounds for heavenly warriors, mighty beasts, powerful mechs, and more. Build your champion deck in a roguelike adventure mode and score ranks in intense battles against fellow champions!