Solar System Sim

Name: Solar System Sim
Rating: 4.5 (4030 reviews)
Author: WPC

Space & Planet Physics Sandbox

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

4K Ratings
Age Rating

4+
Years
Category

Simulation
Developer

WPC
Language

EN
English
Size

533.4
MB

Smash worlds together: craters carve the surface, firestorms sweep the globe, glowing debris rains back down. Then rebuild the Solar System your way Zoom from a planet's surface out to distant galaxies, then reshape the whole system with your own hands. Solar System Sim 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 Sim.

Ratings & Reviews

4.5

out of 5

4K Ratings

Unstable orbits and other issues
05/11/2024
United Space Exploration
One thing that has been happening for a while is terrible orbital mechanics. If I’m creating a custom solar system, I try to place moons around orbit in a planet. But over time the moons orbit falls out and ejects itself out into space around a star. It could happen if placing to many moons around a planet or having a large moon with several smaller ones. Although there is an alternative way to fix by using a Sphere of influence. A gravitational sphere of influence (abbreviated as SOI) is how large a planet's gravitational influence reaches into space. For a celestial body to orbit around a planet, the celestial body must be inside of the sphere of influence of it. If it's a moon, that moon will have its sphere of influence of its own. The moon can have satellites of its own and have their own spheres of influence. It keeps ahold of the moons a planet can pull. But a SOI is only finite due to the radius and mass of the host planet. And some other suggestions I would like to consider is a reverse Timelapse option which could be useful. And some overhaul options and to rework physics and graphics mechanics. Thanks for reviewing this review. Update if possible.
Unstable orbits and other issues
05/11/2024
United Space Exploration

One thing that has been happening for a while is terrible orbital mechanics. If I’m creating a custom solar system, I try to place moons around orbit in a planet. But over time the moons orbit falls out and ejects itself out into space around a star. It could happen if placing to many moons around a planet or having a large moon with several smaller ones. Although there is an alternative way to fix by using a Sphere of influence. A gravitational sphere of influence (abbreviated as SOI) is how large a planet's gravitational influence reaches into space. For a celestial body to orbit around a planet, the celestial body must be inside of the sphere of influence of it. If it's a moon, that moon will have its sphere of influence of its own. The moon can have satellites of its own and have their own spheres of influence. It keeps ahold of the moons a planet can pull. But a SOI is only finite due to the radius and mass of the host planet. And some other suggestions I would like to consider is a reverse Timelapse option which could be useful. And some overhaul options and to rework physics and graphics mechanics. Thanks for reviewing this review. Update if possible.
It is good, but that one bug
May 30
NH BH
I honestly think this app is amazing except for that one bug that the devs didn’t fix, it’s the one where if you zoom out the game just freezes until you zoom back in if you didn’t save your progress to try to go to a bigger planet/star the game just freezes and you can’t undo it so you’re forced to let your progress be unsaved, and yeah, it’s pretty annoying, but I hope they fix this. For devs: you guys have made an amazing game and I wonder why you haven’t released a new update in a while, I have always wanted the ability to change the temperature of planets since I do not want to reach the temperature of the star and. This app is pretty cool, but I don’t understand why that bug exists. you made an amazing app. I really want more of these types of games. and also don’t forget to fix that bug if you see my review.
It is good, but that one bug
May 30
NH BH

I honestly think this app is amazing except for that one bug that the devs didn’t fix, it’s the one where if you zoom out the game just freezes until you zoom back in if you didn’t save your progress to try to go to a bigger planet/star the game just freezes and you can’t undo it so you’re forced to let your progress be unsaved, and yeah, it’s pretty annoying, but I hope they fix this. For devs: you guys have made an amazing game and I wonder why you haven’t released a new update in a while, I have always wanted the ability to change the temperature of planets since I do not want to reach the temperature of the star and. This app is pretty cool, but I don’t understand why that bug exists. you made an amazing app. I really want more of these types of games. and also don’t forget to fix that bug if you see my review.
Good Game, but more things
04/18/2025
Cidjdhoeidibd
So i think overall this game is amazing but has few flaws like for instance, the asteroids, i feel like it shouldn’t only be the asteroids over 300 km doing like a shockwave maybe like 60km-300km does a shockwave, but also the shockwaves i feel like you guys should add like when a stellar object hits another it causes like an actual shockwave and like say if you made a 200km procedural asteroid hit near the west coast of California maybe like then shockwave could bring a tsunami with it that floods that part of the west coast (i know that maybe you would have to get more graphics for that or like more advanced coding) and like the asteroid belt i feel like it should be like the particles from the particle ring and two more suggestions can you make it so we can like spawn a new object, then we can edit the name of it and one more (last one) can you make it so we can see like the life chance on the planet
Good Game, but more things
04/18/2025
Cidjdhoeidibd

So i think overall this game is amazing but has few flaws like for instance, the asteroids, i feel like it shouldn’t only be the asteroids over 300 km doing like a shockwave maybe like 60km-300km does a shockwave, but also the shockwaves i feel like you guys should add like when a stellar object hits another it causes like an actual shockwave and like say if you made a 200km procedural asteroid hit near the west coast of California maybe like then shockwave could bring a tsunami with it that floods that part of the west coast (i know that maybe you would have to get more graphics for that or like more advanced coding) and like the asteroid belt i feel like it should be like the particles from the particle ring and two more suggestions can you make it so we can like spawn a new object, then we can edit the name of it and one more (last one) can you make it so we can see like the life chance on the planet
Almost 5 star, but one thing…
11/20/2024
🖼️🧸
Hello, game makers!(devs) I just got the game yesterday, and I love it💝! I made 2 Solar Systems, and I love making a giant planet to destroy Earth, before I use another planet, or the crack/explode button to destroy the giant planet (sorry if there is spelling mistakes). But there is one thing that I don't like… I wanted to create a chaotic solar system, but when I put the Black Hole for the planets to orbit, the Grid turned sideways! It made it very hard for me to make the solar system! I ended up quitting right after the first planet. If you could fix this problem by keeping the grid horizontal, it would make me very happy😃, and I could make a 3rd solar system! Thank you for reading this. This is a very good game and I haven run into an ad yet, and I'm glad that my Mom got this game for me. This was just the only problem I found. Edit: As it turns out, I was too far away. 5 stars for this wonderful game👍!
Almost 5 star, but one thing…
11/20/2024
🖼️🧸

Hello, game makers!(devs) I just got the game yesterday, and I love it💝! I made 2 Solar Systems, and I love making a giant planet to destroy Earth, before I use another planet, or the crack/explode button to destroy the giant planet (sorry if there is spelling mistakes). But there is one thing that I don't like… I wanted to create a chaotic solar system, but when I put the Black Hole for the planets to orbit, the Grid turned sideways! It made it very hard for me to make the solar system! I ended up quitting right after the first planet. If you could fix this problem by keeping the grid horizontal, it would make me very happy😃, and I could make a 3rd solar system! Thank you for reading this. This is a very good game and I haven run into an ad yet, and I'm glad that my Mom got this game for me. This was just the only problem I found. Edit: As it turns out, I was too far away. 5 stars for this wonderful game👍!

• 3D tsunamis after collisions • 16 new moons for Jupiter and Saturn • Irregular shapes for asteroids and comets • 8 new bodies: ringed Quaoar & Chariklo, Orcus, Gonggong, Bennu, Ryugu, Eros, Kamo'oalewa • 2 new comets • Speed up to 2048x, backward time to -2048x (Kepler mode only) • Orbit helper: force-lock moons • More stable n-body mode, better performance

Version 0.390 Jul 31

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Accessibility

Information

Seller: WPC
Size: 533.4 MB
Category: Simulation
Compatibility: Requires iOS 15.0 or later.

iPhone
Requires iOS 15.0 or later.

iPad
Requires iPadOS 15.0 or later.

iPod touch
Requires iOS 15.0 or later.

Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English
Age Rating: 4+

4+

Learn More

Contains
Advertising
In-App Purchases: Yes

No-ads $3.99

HD 3-body pack $6.99

HD Earth $2.99

HD Mars $2.99

HD Moon $2.99

Learn More

Developer Website

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Ratings & Reviews

Unstable orbits and other issues

It is good, but that one bug

Good Game, but more things

Almost 5 star, but one thing…

What’s New

App Privacy

Data Used to Track You

Data Linked to You

Data Not Linked to You

Accessibility

Information

More by WPC

Space Crash Simulator

Ship Maneuvering Simulator

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Solar Smash 2D: Space Game

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SandBox - sand box

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