Early Access · Sci-fi · Simulation games to play together

26 Early Access · Sci-fi · Simulation games your group can play together online, including Roadside Research, StarRupture, and SpaceCraft.

All games: 24

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

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

Nexus Legacy

Rebuild civilization from a single planet in Nexus Legacy, a persistent sci-fi 4X MMO. Colonize worlds, manage resources, research technologies, command fleets, forge alliances, and fight for control of a living galaxy.

65% positive of 381 reviewsPlaying now: 97Free

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

BattleGroupVR2

BattleGroupVR2 is a virtual reality real-time space strategy where you explore the galaxy and lead a fleet of powerful warships from the bridge of your flagship. Explore, mine, trade, hunt. Grow your fleet, upgrade your ships, train your captains, and battle the enemy from the captain's chair.

84% positive of 219 reviewsPlaying now: 3$24.99

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

FOUNDRY

Build a sophisticated robot factory optimized to perfection in an infinite voxel world. Mine and harvest resources, automate your production lines and manage complex systems while researching your way to become the galaxy’s leading robotics megacorp.

82% positive of 3,325 reviewsPlaying now: 218$29.99

Nuclear Option

Fly near-future aircraft with immersive physics across dynamic battlefields, facing land, air, and sea threats. Wage war against AI or rival pilots using an array of advanced weaponry, including tactical and strategic nuclear weapons capable of annihilating anything in your path.

95% positive of 10,780 reviewsPlaying now: 484$19.99

Final Factory

Final Factory blends factory building, spaceship design, and a rich universe to explore. Build a mega factory and command a massive fleet against the hostile local aliens. Discover new technologies and unlock the secrets of an ancient civilization as you explore an infinite cosmos.

78% positive of 288 reviewsPlaying now: 5$18.99

Duels of Fortune

A crazy, explosive fighting game with an expressive combo system and a diverse character roster! Play as superhumans, skeletons, aliens, and even stick figures! Battle dangerous foes, take part in lots of exciting singleplayer modes, throw your opponents into the sun, and so much more!

94% positive of 171 reviewsPlaying now: 2Free

Cosmoteer: Starship Architect & Commander

Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!

94% positive of 12,107 reviewsPlaying now: 610$19.99

QANGA

QANGA: 750 years after humanity's fall, you must survive in a shattered world where Earth itself demands vengeance. Tear through the fabric of space to face the Voss, awaken the ancient civilisation, and dare to challenge the Sanglines, born from the bowels of a world that condemned you.

70% positive of 567 reviewsPlaying now: 1$19.99

Under A New Sun

While searching for a new home, an unexpected failure in your ship has left you stranded on a planet surprisingly similar to Earth. Discover a vast open world, hunt for food, develop technologies, and build yourself a new home to survive!

75% positive of 387 reviewsPlaying now: 8$17.99

NEBULOUS: Fleet Command

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.

80% positive of 4,109 reviewsPlaying now: 123$29.99

Starship EVO

Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.

82% positive of 1,347 reviewsPlaying now: 45$24.99

SPACERIFT: Arcanum System

Space. Ships. Resources. Trading. Production. Combat. Mine ore, haul cargo, and find profitable trade routes. Buy and capture ships, build your fleet, construct stations, and develop your production. Start with your first ship. Build your empire!

77% positive of 414 reviewsPlaying now: 3$12.90

No Time

Go on a trip through time! Experience the freedom of traveling into any date, hour and minute in time between the years 1 and 3033 AD! Help your best friend Edward in his scientific affairs! Watch out for the Time Agents & avoid yourself!

97% positive of 2,144 reviewsPlaying now: 14$12.99

Prismata

A perfect-information strategy game inspired by RTS, deckbuilders, and board games. Choose from three distinct technology classes and outwit your foes by snowballing your starting resources into a powerful cybernetic army. ABSOLUTELY NO PAY-TO-WIN.

80% positive of 1,226 reviewsPlaying now: 12Free

Build a shared galaxy in StarMade

Build ships, stations, and factions with friends in StarMade’s online voxel sandbox. Create your own goals across a generated universe, with server-based co-op and PvP.

66% positive of 2,200 reviewsPlaying now: 7$14.99

Gods and Idols

Take the role of a newly ascended deity in Gods and Idols. Carve your place among the stars in an open, dynamic, and massive MMORTS universe. Command the powers of the cosmos, form alliances, and use your worshipers as instruments to further your goals.

67% positive of 761 reviewsPlaying now: 0Free

Infinity: Battlescape

Infinity: Battlescape is a multiplayer space combat sim supporting hundreds of players on a single server. Join one of the corporate factions and fight for domination of a seamless, true-to-scale procedural star system. Participate in massive space and planetary battles involving hundreds of ships.

79% positive of 639 reviewsPlaying now: 0$34.99

Stellar Warfare

Space RTS with base building and ship customization. Personal passion project. More than 200 available ships, weapons and modules to design your fleet with. Contains a small campaign, several single and multiplayer game modes and a coop game mode. Also contains Wave defense!

80% positive of 320 reviewsPlaying now: 0$19.99