Games like Protoplanet Express

Loved how relaxing Protoplanet Express can get? These games make natural next picks for you.

Hidden gems like Protoplanet Express

Drifter Star: Evolution

Drifter Star: Evolution

A calm physics playground where every run starts as stardust and ends as something that swallows universes.

73% of 1,256 Steam reviews are positivePlayers online now: 27$3.99
Heliopedia

Heliopedia

A fictional universe sandbox/exploration game. 🪐☄️✨ Shape your own solar system by terraforming planets.

87% of 202 Steam reviews are positive$4.99
Solar System VR

Solar System VR

An educational virtual reality journey through space. Be the first space tourist in history and explore planets and moons in our Solar System like…

74% of 321 Steam reviews are positive$3.99
SpaceEngine

SpaceEngine

Fly from Earth to the far edge of space at your own pace, landing on worlds no one has seen before.

96% of 16,279 Steam reviews are positivePlayers online now: 220$29.99
Star Explorers

Star Explorers

Planets, aliens, resources, upgrades, caves, mapping & documenting star systems ... seek a new home for the human race.

82% of 245 Steam reviews are positive$3.24
Earth Analog

Earth Analog

In this relaxing space flight adventure, you pilot the science vessel Eurisko XI on a quest through deep space.

65% of 102 Steam reviews are positive$19.99
Universe Sandbox

Universe Sandbox

Build solar systems, bend orbits and set off cosmic disasters with real physics, all at your own pace.

96% of 28,282 Steam reviews are positivePlayers online now: 470$29.99
Solar 2

Solar 2

Grow from a tiny asteroid into planets, stars and a black hole in an open sandbox universe.

91% of 1,578 Steam reviews are positivePlayers online now: 4$9.99
Star Rangers™ XE

Star Rangers™ XE

Explore space and build on other worlds in Star Rangers! Star Rangers is a space exploration and construction game that allows players to build…

28% of 118 Steam reviews are positive$11.99
Planetarium 2 - Zen Odyssey

Planetarium 2 - Zen Odyssey

Planetarium 2 Zen Odyssey is a physics-based space simulator that is a fun and interactive way to explore, discover and play with the solar system…

50% of 8 Steam reviews are positive$1.99
I Am a Rock

I Am a Rock

A rock's solar system odyssey.

93% of 40 Steam reviews are positive$1.99

Newest games like Protoplanet Express

Planet Forge

Planet Forge

A multiplayer space simulator to play with friends. Control your planet's gravity to pull in rare gases, absorb space dust, and increase your mass.

100% of 8 Steam reviews are positive$2
Spiritus Astrum

Spiritus Astrum

Spiritus Astrum is a persistent, open-world roleplaying sandbox with multiplayer support.

77% of 30 Steam reviews are positiveFree
Planet Genesis 2

Planet Genesis 2

Design your own solar systems and enjoy watching them orbit, collide and smash each other in a cosmic dance!

100% of 6 Steam reviews are positiveFree
Periapsis: Gravity Slingshot

Periapsis: Gravity Slingshot

Lead humanity’s final journey beyond Earth. Launch ships, harness gravity slingshots, and explore distant star systems to make humanity…

79% of 28 Steam reviews are positive$5.99
Solar Expanse - Space Exploration Manager

Solar Expanse - Space Exploration Manager

Run a space company at your own pace, moving cargo across the solar system one careful calculation at a time.

87% of 1,347 Steam reviews are positivePlayers online now: 86$17.99
Space Commanders: Solar System

Space Commanders: Solar System

A lone space commander explores real planetary surfaces, builds small outposts, rescues stranded astronauts, and fights to survive in the cold…

100% of 12 Steam reviews are positive$2.99
Keplerian Space Discovery

Keplerian Space Discovery

Travel through the solar system in your own spaceship! The motion of each celestial body is accurately reproduced by the Kepler equation.

88% of 26 Steam reviews are positivePlayers online now: 1$24.99
Super Starship

Super Starship

A futuristic sci-fi persistent universe exploration game with one million stars and 18 million planets and moons.

91% of 11 Steam reviews are positive$9.99
Gaia Maker

Gaia Maker

Gaia Maker is a planet-wide simulation game of terraforming, based on real physics and geology.

95% of 37 Steam reviews are positiveFree
Astronook

Astronook

An astronomy game where you can explore space from the comfort of your study.

97% of 38 Steam reviews are positive$6.74
Drifter Star: Evolution

Drifter Star: Evolution

A calm physics playground where every run starts as stardust and ends as something that swallows universes.

73% of 1,256 Steam reviews are positivePlayers online now: 27$3.99
Space Crash Simulator

Space Crash Simulator

Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!

89% of 38 Steam reviews are positivePlayers online now: 1$9.99