Simulation · Sci-fi · Simulation games to play together

103 Simulation · Sci-fi · Simulation games your group can play together online, including CRACK, Angels Fall First, and Outworld Station.

All games: 24

CRACK

Why is there a giant egg in this lab? Your job is simple: crack it open. Don't ask questions. CRACK is a 1-4 player co-op incremental adventure about uncovering what's inside a mysterious giant egg.

87% positive of 570 reviewsPlaying now: 4,931$6.79

Angels Fall First

From commanding the battle standing on the bridge of your flagship all the way down to tactical infantry firefights - AFF brings together all the combat you ever loved in a rich science fiction setting. Boarding, pilotable capital ships, deep weapon customization and full Bot support included!

80% positive of 3,893 reviewsPlaying now: 20$17.99

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% positive of 855 reviewsPlaying now: 50$18.99

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% positive of 4,096 reviewsPlaying 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% positive of 12,566 reviewsPlaying 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% positive of 42,834 reviewsPlaying now: 2,527$34.99

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% positive of 1,911 reviewsPlaying now: 63$20.99

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% positive of 1,455 reviewsPlaying now: 16$14.99

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% positive of 938 reviewsPlaying now: 92$14.99

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% positive of 167 reviewsPlaying now: 7$9.99

SpaceCraft

The Universe is yours. SpaceCraft is an online space exploration and building game. Explore a vast galaxy of solar systems and planets, mine and craft resources, design and build ships, automate planetary bases and interplanetary logistics, trade and cooperate.

62% positive of 2,713 reviewsPlaying now: 317$29.99

ERA ONE

Start with your Command Center and expand it into a colossal modular flagship, module by module. Design custom warships from the ground up, grow a thriving civilization, and command powerful fleets across the Solar System in tactical real-time battles.

87% positive of 1,611 reviewsPlaying now: 45$29.99

Feed the Reactor

An incremental unfolding game about feeding fuel into a reactor. Combine elements to produce energy, unlock exotic technologies and explore a strange galaxy.

81% positive of 672 reviewsPlaying now: 7$6.99

Occupy Mars: The Game

Survive and colonize Mars alone or in online co-op. Build and upgrade your base, craft equipment, mine resources, produce water, oxygen and food, explore an open world, and repair complex machinery in a technical survival sandbox.

67% positive of 2,736 reviewsPlaying now: 87$29.99

Satisfactory: Build a Factory Together

Join up to three friends online to explore an alien world, automate production, and expand one shared factory in Satisfactory.

96% positive of 236,919 reviewsPlaying now: 16,205$39.99

Solar Nations 2

In this Grand Strategy game, you take control of the Solar System's Great Powers in 2092 and weather the storm of change as you navigate the uncertain waters of the future. Control the greatest military forces in the world and wage wars on an epic scale: outer space is yours to conquer!

85% positive of 656 reviewsPlaying now: 52$14.99

The Gold River Project

The Gold River Project™ is a camping trip gone wrong in the Pacific Northwest. Explore, craft, build, and survive in this open-world experiment that traps you and up to 4 friends in this single player or co-op survival adventure game.

61% positive of 647 reviewsPlaying now: 45$12.49

ANEURISM IV

A dystopian simulator where your choices shape a decaying city. Join other players to protect the metropolis from ruin, hasten its downfall, or simply work in the factories. With no set goals or rules, every action has consequences in a world teetering on the brink.

74% positive of 5,763 reviewsPlaying now: 59$4.99

Block Fortress 2

Choose a planet, build your fortress, and prepare for war. Arm yourself with powerful weapons, deploy troops, construct turrets, and defend your stronghold against relentless attacks. Team up with a friend or fight alone in this action packed block builder, where only the strongest survive.

82% positive of 269 reviewsPlaying now: 5$19.99

Alpha League HD

Alpha League HD is a free-to-play, hero based Autobattler. In Alpha League, simply pick and build your favorite hero in a Roguelike fashion with 12 different combat genres, and then battle the other 7 Bots or Players to be the winner.

88% positive of 909 reviewsPlaying now: 3Free

MechWarrior 5: Clans

In MECHWARRIOR 5: CLANS, players become new Smoke Jaguar pilots in the Clan Invasion of the Inner Sphere. Lead a five-mech "Star" squad across diverse planets, engaging in an expansive campaign with immersive gameplay and intricate combat. Customize BattleMechs and explore strategic options.

73% positive of 5,646 reviewsPlaying now: 241$29.99

Dune: Imperium

The award-winning board game of strategy and intrigue in the iconic universe of Dune. The Spice must flow.

93% positive of 3,880 reviewsPlaying now: 299$22.99

Nano Neighbors

A cozy online incremental idle game you can play with your friends at the bottom of your screen. Customise, play mini games, earn & spend!

74% positive of 116 reviewsPlaying now: 1$7.99

War Robots: Frontiers

Gear up for tactical mech action in War Robots: Frontiers, a free-to-play multiplayer mech shooter. Construct and customize, squad up with Pilots online, and fire up your engines in massive intergalactic battles.

65% positive of 5,020 reviewsPlaying now: 195Free