Online co-op Space Sim games

Every online co-op Space Sim game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 31–40 of 81 games matching Space Sim · updated 12 Oct 2026

Filters: Space Sim × Clear all
Free
Released
Price
Free
Players
👥 Up to 4 players
Reviews
42% of 7

Survive the lunar wasteland on a modular rover in perpetual motion. Scrap resources, expand your mobile base, and automate simple systems in a scientifically grounded world. Team up with up to 4 players to survive and build a rocket and escape back to Earth.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 12 players
Reviews
50% of 4

Handgun Football shatters physics: FPS meets soccer brawl. Revolvers, shotguns blast the ball into rival goals. Solo vs AI, slide from chill to hell; .LAN or global 2,3,4-teams,up to 12 players. Classic gravity or zero-g space variants. One shot flips the match.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
92% of 115

Riftborne is a classic terminal based, real time, grand strategy game. Construct space ships. Take part in factional warfare. Hire galactic hit-men on your rivals. Raid neighbors for rare resources. Train spies to infiltrate enemy bases for key intel. Grow your empire to dominate the galaxy.

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
87% of 1,036

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.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
0% of 1

Co-op sci-fi extraction mining for up to 4 players. You’re prisoners working for a cold Corporation. Drill planets, meet mandatory quotas, keep the surplus, and upgrade your gear. No heroes — only contracts, pressure, and profit.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
94% of 17

Build spacecrafts and fight with or against your friends! This game offers physics driven gameplay, with a variety of weapons and powerups. Slice your enemies in half with a laser beam, or erase them from existence with a black hole bomb!

Free
Released
Price
Free
Players
👥 Not stated
Reviews
82% of 141

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.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 5 players
Reviews
81% of 64

A space tactics roguelite with naval combat and extraction elements. Explore space, pick fights, collect loot, then escape. Upgrade and unlock new ships to strengthen your fleet and face tougher foes. Play with up to 4 friends in online coop.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
32% of 520

Dark Orbit is a free-2-play space MMO where three companies battle for galactic domination. Customize ships, trade resources, fight aliens and uncover a grand conspiracy on your epic cosmic journey. Thrilling PvP and PvE missions await! Will you lead your faction beyond the final frontier?

If you loved these, you'll love this