Space Sim Indie games to play together

45 Space Sim Indie games your group can play together online, including Moon Sweepers, Approximately Up, and Starlathe.

All games: 24

Moon Sweepers

An entire Moon to clean. One toothbrush to start. Team up with up to 16 players, collect and sell lunar dust, upgrade your tools, and unlock cleaning vehicles. Turn a ridiculous job into a thriving operation, if your friends actually help.

77% positive of 2,404 reviewsPlaying now: 70,427$7.64

Approximately Up

Design, build, and pilot fully modular spaceships in first person, solo or with up to 4 players. Explore 15 unique planets, complete challenging missions, face the dangers of space, and unlock new components to improve or completely rethink your ship.

92% positive of 1,125 reviewsPlaying now: 79$24.99

Starlathe

Command your ship and fleet in a galaxy that truly lives: 150 sectors where six factions mine, haul, trade, build and wage war whether you're there or not. Trade it, rob it, defend it — or forge your own fleet and carve out your place in it. Play solo or in online co-op.

88% positive of 150 reviewsPlaying now: 90$14.99

Space Defender: Frontier Squadron

A top-down space shooter with deep RPG progression. Fly a voiced story in four acts, from a war across three galaxies to the gravity wells of Kepler, lead your wingmen, hunt pirate captains and hold a collapsing front. Solo, or with a friend on the second controller.

98% positive of 125 reviewsPlaying now: 13$6.99

Astro Colony

Astro Colony throws you into an endless Universe of exploration, automation and survival! Build interconnected colonies, alone or with friends, and turn planets into thriving industrial hubs! Design conveyor systems and take care of your Astronauts as you expand your intergalactic empire!

80% positive of 2,436 reviewsPlaying now: 189$19.99

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

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% positive of 1,056 reviewsPlaying now: 28$16.99

Mars First Logistics

Build physically simulated rovers to transport awkwardly shaped cargo across the rugged terrain of Mars. Earn funds, unlock new parts, and use your ingenuity to help the Martians establish a new home. Playable solo or in online co-op!

94% positive of 3,551 reviewsPlaying now: 51$19.99

Space Station: Beyond

Play as a variety of creatures or characters and try to survive either maintaining or attacking a space station while everything that can go wrong has already gone wrong.

80% positive of 142 reviewsPlaying now: 49Free

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

Archean

Gather resources, craft components, build vehicles, and code their logic in a physics-driven engineering sandbox and full scale space sim.

86% positive of 245 reviewsPlaying now: 13$19.99

Stellar Settlers: Space Base Builder

Stellar Settlers is a chill space base/city builder and colony sim game. With unique vertical and horizontal base-building gameplay, settle on 10 hostile alien planets and build your own thriving colony. Get enough materials to build a physics-based Spaceship and try to escape from disasters.

68% positive of 747 reviewsPlaying now: 1$4.79

Underspace

The spiritual successor to Freelancer with a Lovecraftian, sandbox RPG twist. Explore a vast handmade universe with mod support and PvP/co-op multiplayer. You're going to need a bigger ship.

80% positive of 436 reviewsPlaying now: 3$9.99

Executive Assault 2

The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.

81% positive of 1,605 reviewsPlaying now: 10$24.99

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

Pixel Starships

Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.

73% positive of 3,034 reviewsPlaying now: 129Free

Tower! Simulator 3

The Gold Standard in Air Traffic Control Simulation Control aircraft at 11 included airports, issue voice commands, manage traffic, and work together in multiplayer in the most immersive air traffic control simulator available.

67% positive of 1,083 reviewsPlaying now: 41$59.99

First Class Trouble

First Class Trouble is a party game where players must work together and against each other to survive a disaster. The goal is to shut down a deadly A.I. Some players are impostors, secretly playing as human-looking killer robots intent on betraying the other players.

78% positive of 3,112 reviewsPlaying now: 44$14.99

PULSAR: Lost Colony

The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits

89% positive of 4,413 reviewsPlaying now: 24$19.99

Empyrion - Galactic Survival

Build and explore in a true space sandbox survival adventure. Construct mighty capital vessels, sprawling planetary settlements, and vast space stations in your galactic journey to discover the mysteries of Empyrion!

78% positive of 29,243 reviewsPlaying now: 566$19.99

Avorion

A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.

89% positive of 13,057 reviewsPlaying now: 415$24.99

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

Nimbatus - The Space Drone Constructor

Command the Nimbatus and craft drones out of hundreds of different parts. Survive unknown threats in a fully destructible, procedural universe, compete against other players in different arenas or enjoy complete creative freedom in the sandbox.

78% positive of 1,764 reviewsPlaying now: 16$4.99