Sci-fi games to play together

702 Sci-fi games your group can play together online, including ARC Raiders, Outworld Station, and Outlive 25.

All games: 24

ARC Raiders

ARC Raiders is a multiplayer extraction adventure, set in a lethal future earth, ravaged by a mysterious mechanized threat known as ARC.

82%82% positive of 308,140 reviews30.1KPlaying now: 30,113$39.99

Outworld Station

Take the helm as a new Station Commander and exploit an alien star system in this stunning space-station factory automation game. Amass resources and construct starships using increasingly advanced manufacturing and expand your station in a hostile universe.

83%83% positive of 855 reviews50Playing now: 50$18.99

Outlive 25

Build your base, prepare your troops, and face your most epic battle yet in this old-school real-time strategy game. Choose between two factions, test your skills in three epic campaigns and engage in online battles with up to 16 players simultaneously.

93%93% positive of 215 reviews14Playing now: 14$11.99

Roadside Research

Roadside Research is a 1 to 4 player co-op gas station simulator. Except you’re aliens. And undercover. Do very human things like restocking shelves while preparing for the invasion. Just don’t get caught.

85%85% positive of 4,096 reviews87Playing now: 87$14.99

StarRupture

StarRupture is a first-person open world base-building game with advanced combat and tons of exploration. Play alone or in a group on this sublime and ever-changing planet, extract and manage resources, create your complex industrial system and fight off hordes of alien monsters.

80%80% positive of 12,566 reviews1.1KPlaying now: 1,145$19.99

Abiotic Factor

Abiotic Factor is a survival crafting experience for 1-6 players set in the depths of an underground research facility. Caught between paranormal containment failure, a military crusade, and chaos from a dozen realms, the world’s greatest minds must survive against the universe’s biggest threats.

94%94% positive of 42,834 reviews2.5KPlaying now: 2,527$34.99

33 Days till Extraction

33 Days till Extraction is a top-down sci-fi action RPG shooter with roguelike progression. Harness brutal firepower and necromantic skills to survive.

83%83% positive of 102 reviews6Playing now: 6$17.99

Blossom: The Seed of Life

Terraform a dead planet back to life in this open world survival crafting game. Explore ruins, gather resources, print machines, drive modular vehicles, grow forests, biomes, and ecosystems. Create life and make it thrive with your own hands.

87%87% positive of 1,056 reviews28Playing now: 28$16.99

Heroes of Science and Fiction

A turn-based sci-fi strategy that combines exploration and exciting clashes on the battlefield. Take control over several different species, raise powerful armies for your heroes and destroy your opponents! This HoMM-like is set in a scifi universe, with new mechanics on top of the classic formula.

89%89% positive of 865 reviews17Playing now: 17$29.99

Inferno Protocol

A survival horror set in a massive maze. Play solo or 6-player co-op. Scavenge resources to craft gear and survive against terrifying enemies. Unlock unique abilities and find the exit.

77%77% positive of 195 reviews11Playing now: 11$9.44

Species: Unknown

Species: Unknown is a 1 to 4 players co-op survival horror. Complete high-risk missions aboard an abandoned ship while being hunted by an unknown creature. Survive and upgrade your gear to face each new threat that lurks in the dark.

92%92% positive of 9,967 reviews77Playing now: 77$7.99

LOCKDOWN Protocol

A first person social deduction game, combining real time action and communication, playable up to 16 players. While most players will cooperate to complete objectives to ensure victory, a small portion of dissidents will try their best to stop them at all cost, without being caught.

84%84% positive of 16,725 reviews152Playing now: 152$9.99

Desynced

Desynced is a sci-fi strategy game with fully customizable units and behaviors. Gather, build, research, and explore the unknown. Alone or with friends, unveil the mystery of an AI on the edge of self-awareness and uncover the hidden truth in this blend of strategy, automation, and exploration.

79%79% positive of 1,911 reviews63Playing now: 63$20.99

Chrono CCG

Rewrite history in a free-to-play card battler built for competitors. Shift the Timeline to change the rules for both players, Immortalize your agents into their ultimate forms mid-match, and win deliberate, skill-first duels. Made by CCG champions, creators and community leaders.

71%71% positive of 667 reviews50Playing now: 50Free

Warhammer 40,000: Dawn of War - Definitive Edition

Warhammer 40,000: Dawn of War - Definitive Edition is the ultimate Dawn of War experience, featuring the original Dawn of War and all its expansions, along with enhanced visuals, an improved camera, and 64-bit platform support.

84%84% positive of 12,564 reviews1KPlaying now: 1,043$13.99

KILL IT WITH FIRE! 2

KILL IT WITH FIRE! 2 is the ultimate co-op spider-hunting experience! Either solo or as a team of Exterminators, unleash an arsenal of crazy weapons, wreak havoc, and complete dozens of challenges across seven dimensions under spider siege.

92%92% positive of 1,455 reviews16Playing now: 16$14.99

R.E.P.O.

An online co-op horror game with up to 6 players. Locate valuable, fully physics-based objects and handle them with care as you retrieve and extract to satisfy your creator's desires.

96%96% positive of 346,703 reviews17KPlaying now: 16,979$6.49

Granvir

Granvir is a 3rd person action roguelite mech-builder with co-op multiplayer. Scavenge the battlefield for parts to replace and upgrade your Granvir and weaponry. PIlot your Granvir and manage your campaign between battles to find the best equipment and stay supplied while fighting a guerilla war.

91%91% positive of 938 reviews92Playing now: 92$14.99

Jump Space

Jump Space (formerly Jump Ship) is a mission based co-op PvE for 1-4 players, where you are the crew of a spaceship. Transition seamlessly from crewing the ship to on-foot exploration and space walks. Explore, upgrade, and survive intense encounters in deep space together.

85%85% positive of 11,474 reviews186Playing now: 186$19.99

John Carpenter's Toxic Commando

Pick a character and team up with three friends ‘cause it’s time to save the world. Experience intense FPS action as you obliterate hordes of terrifying monsters! You may not be on the best team of mercenaries, but you are… a Toxic Commando!

71%71% positive of 6,410 reviews139Playing now: 139$19.99

Meta Ghost: Breaking Show

Immerse yourself in the reality show — "Breaking Show", where you engage in real-time battles with various intelligent machines using cybernetic enhancements and weapons. Whether for personal gain or lofty ideals. Fight! Until you reach the final victory on this Rogue-lite journey.

71%71% positive of 1,499 reviews10Playing now: 10$17.99

Super Alloy Crush

Super Alloy Crush is a fast-paced 2D roguelike brawler inspired by classics like Mega Man X. Play as Kelly and Muu (No.02) to defeat enemies and obtain the ultimate cosmic treasure: Planet AE-38. Alone or with a friend in local co-op, get ready for your biggest challenge yet!

89%89% positive of 202 reviews4Playing now: 4$11.99

Age Of Warbots

A sandbox battle simulator game where you can build your own shape-shifting warbots, program their AI, and watch them smash each other up on the battlefield! Join the battles yourself by taking control of the warbots! Use Steam Workshop to check out warbots created by players from around the world!

83%83% positive of 167 reviews7Playing now: 7$9.99

Split Fiction

Embrace mind-blowing moments as you’re pulled deep into the many worlds of Split Fiction, a boundary-pushing co-op adventure.

97%97% positive of 79,510 reviews1.8KPlaying now: 1,785$0

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