Solar System Simulator

Contains adsIn-app purchases
9.58K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
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About this game

Zoom from a planet's surface out to distant galaxies, then reshape the whole system with your own hands.

Solar System Simulator is a real-time gravity sandbox built on Newton's laws and real astronomical data. Every body you add, move or destroy recalculates the orbits of everything else, live.

• Smash worlds together: impact craters carve into the surface, firestorms sweep the globe, and glowing debris rains back down.
• Build your own universe: add planets, moons, asteroids and comets with their own size, mass and looks, or customise the ones already there.
• Land anywhere: drop to a first-person view on any planet's surface and experience its environment.
• Sculpt rings: add particle rings and watch gravity shape them in real time.
• Witness real eclipses: solar and lunar, with real-world astronomical precision.
• Follow comets: watch them streak past and interact with the bodies they meet.
• Leave the Solar System: travel to remarkable nearby stars and find them within the Milky Way.
• Feel the scale: see the true vastness of space, from a pebble-sized moon to the nearest galaxies.

Whether you're here to learn how gravity really works or just to break planets with it, explore at your own pace.

Start your cosmic adventure with Solar System Simulator!
Space gravity sandbox: build planets, smash worlds, explore the solar system.
Updated on
Oct 24, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    App activity
  • This app may collect these data types
    Location, App info and performance, and Device or other IDs
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

7.92K reviews
Douglas Newman
June 19, 2025
this is a great game, it's always fun to create your own system. although from time to time the lighting is bugged, and the day side of planets gets flooded in light even out to the cold zone of a star. and some types of stars, when I'm trying to place planets to orbit it, the grid is vertical, please fix these. other than that this is a great game
356 people found this review helpful
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SK-san
September 3, 2026
The game is well, but transparency and luminosity for ocean is not saved, and transparency is not 0 from start of slider so planets with shallow water don't look as good. slider could have number values and you can type number in there, since it is hard to make it look smoother planets. I hope you make these changes please
5 people found this review helpful
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Nicholas Smith
May 30, 2026
the first time I played this I loved it but later on it gets very boring and its very confusing to learn but one recommendation that could fix this is if you could actually choose what planets, stars, black holes, or neutron stars you want to place/add when creating a new planet and the game constantly freezes or bugs if you try to increase the size of anything to a high amount, if your going to let us do that can you at least make it work correctly. Otherwise this game is good 5 stars.
51 people found this review helpful
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What’s new

What's new:
• Dozens of new nearby systems, with info cards (tap "I" next to the name)
• New comets: 67P, Swift-Tuttle & NEOWISE, with ion and dust tails
• Hear pulsars tick at their real rhythm when you come close
• Turn sunlike stars into red giants, then into white dwarfs
• Give any star a Kuiper belt, Oort cloud or custom nebula
• Redesigned orbit lines
• Smoother on phones, especially older devices
• Bigger, walkable impact craters with crater walls
• Supernova lag fix
• Many fixes