Co-op games like Planet Forge

Did Planet Forge leave you in a relaxing and atmospheric frame of mind? These co-op games are a good place to start. Many of them are fun to share with friends.

Inspiral: Echoes of Gravity
Start as an asteroid, grow by absorbing other celestial bodies to become a planet, a star, and ultimately a black hole. Experience realistic gravity and orbital physics in an ever-evolving sandbox universe.
Relaxing, Atmospheric
74% of 57 Steam reviews are positive$3.99
The Planet Crafter
Turn a dead planet green with up to ten co-op friends. You land on red dust, gather ore, build a base, then raise heat, pressure, and oxygen until lakes form and forests take root. Calm, steady teamwork with no enemies but the weather.
Relaxing, Atmospheric
96% of 70,040 Steam reviews are positivePlayers online now: 4,524$23.99
ADIOS Amigos: Galactic Explorers
Improvise fuel efficient trajectories to keep your rusty ship running. Break into a space station with an asteroid. Tow a sofa into a black hole. Experience the perils and intrigue of space exploration with 1-4 players.
93% of 107 Steam reviews are positive$14.99
Stationeers
Stationeers gives you and your co-op friends a space station to build and keep alive together. You mine ore, raise walls and pipes, balance air, heat and power, and split jobs until the base runs itself. Hard, systems-heavy fun for co-op friends who like solving problems as a crew.
Relaxing, Atmospheric
88% of 8,675 Steam reviews are positivePlayers online now: 464$34.99
Astro Colony
Astro Colony is a voxel-space factory game about turning scattered planets into one linked industrial colony, alone or with friends. You move stations, dock them together, run conveyors and pipes, keep astronauts fed and housed, and research your way toward home. Relaxed and open-ended, it suits co-op friends who want to build side by side.
Relaxing
80% of 2,447 Steam reviews are positivePlayers online now: 106$19.99
ASTRONEER
Land on bright alien planets with co-op friends, reshape the ground with your terrain tools, and build a shared base from printers, power plants, and rails. A relaxed space sandbox built for 2-4 players to explore, build, and survive together.
Relaxing, Atmospheric
91% of 119,366 Steam reviews are positivePlayers online now: 1,036$29.99
Eden Crafters
Pick a hostile planet with co-op friends and turn it into somewhere humans can live. You gather, craft, build factories with conveyors and machines, then shift the climate, air and water until toxic lakes run clean. A steady shared project with a clear payoff: a dead world slowly becoming an Eden.
Relaxing
84% of 2,619 Steam reviews are positivePlayers online now: 351$19.99
Approximately Up
Build a spaceship out of thousands of parts, climb aboard in first person, and launch it with up to three co-op friends. Approximately Up pairs sandbox shipbuilding with a 200-hour mission story across 15 planets, where every backward thruster and missing cable is your crew's problem to solve.
Relaxing, Atmospheric
93% of 1,177 Steam reviews are positivePlayers online now: 266$18.74
Last Breath
Last Breath is a solo and online co-op terraforming survival game where you and your co-op friends dig through a dead planet and bring it back to life. Share resources, split the digging and building, and watch forests and lakes return as your machines do the heavy lifting.
Relaxing, Atmospheric
82% of 106 Steam reviews are positivePlayers online now: 8$7.99
Skyformer
Create an automated system that terraforms a planet with an army of drones. Craft and build bases, set up a weather monitoring system, prepare to survive different types of storms, and take control of the climate and biomes! Play alone or up to 4 player co-op.
Relaxing
79% of 84 Steam reviews are positive$14.99
Main Sequence
A first-person space factory builder. Start with one small mining ship in an asteroid belt, scan rocks, refine ore, then grow a station with conveyor-fed production lines into an interstellar industry. Design every ship yourself, automate supply routes between star systems, and watch an ancient alien defence network take an interest in your work.
Relaxing
79% of 179 Steam reviews are positivePlayers online now: 1,728
Astronimo
Crash-landed and ill-prepared, you and your friends must build, break, and rebuild to escape. A chaotic co-op puzzler about creativity, comedy, and questionable engineering.
Relaxing
81% of 47 Steam reviews are positive$14.99

Cheaper than Planet Forge

VOYAGER

Come with us now on a journey through music and space... To the world of VOYAGER ◯∘ A minimalist, relaxing & atmospheric experience to chill out to…

$1.99

Centrifugal

Navigate your rocket through the universe by using the centripetal and centrifugal forces! Wander around the stars and find your way home!

$0.99

Super-Spatial

Explore, build, and master the art of automation. Build your base, discover colorful new worlds, and develop new technologies as you tame the far…

$0.99

Build In Space

Build In Space is a relaxing tycoon game where you can grow crops, build your base, and raise animals.

$0.99

Super Mining Mechs

Build a mining mech and burrow under alien planets with up to 7 co-op friends. You dig, haul ore, sell it, and bolt on better parts to go deeper.

$4.99

Take On Mars

Take On Mars places you right in the middle of mankind’s most exciting undertaking.

$1.99

Iron Stars

Iron Stars is a realistic space 4X strategy game where you explore believable star systems, colonize planets and moons, grow your population, and…

$0.74

Deep Space Battle Simulator

Two teams of players control their capital ship in an epic battle.

$9.99

Orbital Clash

Turn-based space battle tactical/strategic game

$1.99

Not Enough Space

Land with your friends on the surface of various planets, gather resources, create items and buildings, defeat enemies and move to other planets to…

$0.99

HangTogether

This game challenges you to control a machine and climb upward to escape.

$1.99

SpaceWorms

SpaceWorms is a turn-based strategy game which puts you in the role of "Ze Wormperor", overlord over a galactic civilization.

$0.99

Hidden gems like Planet Forge

Approximately Up

Build a spaceship out of thousands of parts, climb aboard in first person, and launch it with up to three co-op friends.

$18.74

Earth Simulator

Shape continents and climates, then watch civilizations rise under your hand, with friends along for the ride.

$4.99

Blossom: The Seed of Life

Team up with co-op friends to bring a dead Mars back to life as Blossom, a small robot built for places humans cannot survive.

$16.99

Eden Crafters

Pick a hostile planet with co-op friends and turn it into somewhere humans can live.

$19.99

Last Breath

Last Breath is a solo and online co-op terraforming survival game where you and your co-op friends dig through a dead planet and bring it back to…

$7.99

Astro Colony

Astro Colony is a voxel-space factory game about turning scattered planets into one linked industrial colony, alone or with friends.

$19.99

Final Factory

Final Factory blends factory building, spaceship design, and a rich universe to explore.

$18.99

The Planet Crafter

Turn a dead planet green with up to ten co-op friends. You land on red dust, gather ore, build a base, then raise heat, pressure, and oxygen until…

$23.99

Starship EVO

Starship EVO strands you on a planet and asks you to mine, craft and build your way back to orbit.

$24.99

ADIOS Amigos: Galactic Explorers

Improvise fuel efficient trajectories to keep your rusty ship running. Break into a space station with an asteroid. Tow a sofa into a black hole.

$14.99

Evospace

Evospace is a first-person factory builder with no enemies, only engineering problems.

$14.99

Per Aspera

You are AMI, the AI in charge of turning Mars green, and in Sandbox Mode up to three co-op friends can join you.

$29.99

Newest co-op games like Planet Forge