Space Indie games to play together

195 Space Indie games your group can play together online, including Astroloot, Starship Troopers: Extermination, and Sixtar Gate: STARTRAIL.

All games: 24

Astroloot

Loot, level up, and obliterate everything in your path. Astroloot is a sci-fi bullet heaven with deep ARPG systems, featuring a massive skill tree, deterministic crafting, and near-endless build possibilities.

91% positive of 597 reviewsPlaying now: 10$6.99

Starship Troopers: Extermination

Starship Troopers: Extermination is an up to 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!

79% positive of 29,763 reviewsPlaying now: 323$29.99

Sixtar Gate: STARTRAIL

Sixtar Gate: STARTRAIL is a rhythm game for keyboard set against a space exploration backdrop. Captain your science vessel alongside your navigator Shii as you explore the vast Sixtar system!

86% positive of 1,424 reviewsPlaying now: 5$24.99

Star Vortex

Star Vortex is a fast-paced Action-RPG inspired by classics of the genre. Design your ship, fight through hostile alien sectors solo or with friends, salvage rare weapons and experiment with powerful builds until nothing can stand against you.

84% positive of 159 reviewsPlaying now: 1$24.99

Warhammer 40,000: Rogue Trader Co-op for Six

Explore the Koronus Expanse with up to five friends in online co-op, then share a six-character party through tactical battles, ship combat, and one Lord Captain’s story decisions.

87% positive of 34,531 reviewsPlaying now: 3,979$49.99

Relentless Expanse

Capture and upgrade planets, outsmart your enemies, and conquer the galaxy! Simple yet addicting, you can play alone or outsmart your friends in this 2D top-down space RTS. Completely free, no monetization, just fun!

91% positive of 113 reviewsPlaying now: 1Free

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

Nexus 5X

eXplore, eXpand, eXploit, eXterminate, EXPRESS. All of the depth, diplomacy, conflict and conquest of a turn-based 4X epic but played in fast-paced 60-minute competitive sessions. Play Solo or Multiplayer for 2-8 players.

90% positive of 890 reviewsPlaying now: 8$14.99

Entropy Survivors

Pilot a sword-swinging mech and a sharpshooting space frog at the same time in this bullet heaven roguelike. Throw empty shotguns, fire guns that shoot bees and build absurd combos across 20-minute runs: solo or in 2–4 player online co-op.

79% positive of 496 reviewsPlaying now: 2$9.99

Planet S

Planet S is a real-time strategy game where your goal is to colonize multiple planets in a solar system to advance your civilization, build a city and supply it to grow your faction.

91% positive of 2,904 reviewsPlaying now: 19Free

SENTRY

SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.

82% positive of 863 reviewsPlaying now: 5$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

Spin Rhythm XD

Enter the Rhythm Dimension. A homage to classic arcade rhythm games (Guitar Hero, DDR), with a modern aesthetic and soundtrack. Match colours and beats, spin, tap, flick and flow through the juiciest beats in the universe. Supports multiple control styles including MIDI DJ gear on Steam!

97% positive of 3,806 reviewsPlaying now: 31$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

DemonStar

The shareware legend DemonStar comes soaring back with new game modes and revised gameplay. Originally published in 1997, DemonStar has earned the Computer Gaming World's "Shareware Game of the Year 1999" award..

94% positive of 251 reviewsPlaying now: 1$2.99

TerraTech Worlds

TerraTech Worlds is an open world, build-craft adventure game, set on an uncharted alien world. Play solo or with friends, explore your surroundings, craft unique vehicles, construct automated bases, and battle your way through hazards and enemies to harness the power of your environment

61% positive of 2,034 reviewsPlaying now: 26$29.99

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

Chicken Invaders Universe

A deliciously addictive core of finger-blistering shooting action, surrounded by delectable morsels of galactic exploration, spacecraft customization, and community competitions.

90% positive of 3,851 reviewsPlaying now: 22Free

Beyond Contact

A fiercely formidable sci-fi survival game, set on a hostile alien world that wants you dead! Alone, or with a crew, do you have what it takes to survive?

70% positive of 1,013 reviewsPlaying now: 14$19.99

Heavenly Bodies

Wrangle the hands and arms of a 1970s space cosmonaut and push, pull and twist your way through an increasingly precarious range of physically simulated stellar scenarios, where without gravity, nothing is still, nothing is secure, and nothing is simple.

95% positive of 3,786 reviewsPlaying now: 17$19.99

Mimicry

A terrifying online horror game where one player becomes an impostor monster. Disguise, hunt, and destroy your friends — or work together to survive. Mimicry is a fast-paced, multiplayer fun game full of deception, fear, and chaos.

77% positive of 253 reviewsPlaying now: 8$2.99

Space Beast Terror Fright

S.B.T.F. is a very hard arcade-style / rogue-like / perma-death first person shooter. You play as Marines who must brave dark, claustrophobic and terrifyingly intense Space Beast infested spacecraft in order to extract critical data and lucrative upgrades. Can you make it out alive?

91% positive of 1,259 reviewsPlaying now: 2$4.94