Ever wondered what would happen if Jupiter slammed into the Sun?
Or what our galaxy will look like when it crashes into Andromeda?
Milky Way is the cosmic sandbox where you stop wondering and start
playing. Smash planets, merge galaxies, build solar systems, and
pick up real science along the way.
If you like Solar Smash, Universe Sandbox, Spaceflight Simulator,
or Solar System Sim, this is your next favorite app.
No lectures. No textbooks. Just gravity, collisions, and "what if?"
experiments you run with your fingers.
GRAVITY SANDBOX
Drop in planets, stars, and black holes. Real Newton's-law gravity
takes over. Build stable orbits, send moons flying, or kick off
total chaos. Every planet in the Solar System is here — Earth, Mars,
Jupiter, Saturn, even Pluto.
GALAXY MERGER
Crash the Milky Way into Andromeda. Watch supermassive black holes
fling stars across space. This is the same kind of simulation
astronomers use to model what will actually happen to our galaxy
in 4 billion years.
PROTOPLANETS (3D)
See how planets are born. Run a protoplanetary disk simulation and
watch dust clumps grow into rocky worlds and gas giants — millions
of years compressed into seconds.
SPH SIMULATION (PREVIEW)
Smoothed Particle Hydrodynamics, the technique real astrophysicists
use. Try the Three-Body Problem. Trigger Tidal Disruption when a
star wanders too close to a black hole. Watch math turn into a
fireworks show.
PLANET RIVALS
A fast game mode where you compete with other planets to grow into
the biggest world in the Solar System.
STELLAR COLLISIONS
Smash stars together. Trigger a supernova. Form a neutron star or
a black hole. All the violent cosmic events you'll never see with
a telescope, now in your hands.
MECHAZILLA CATCH
A SpaceX-inspired mini-game. Fire the Raptor engines on the Super
Heavy booster and help Mechazilla make the chopstick catch.
SOLAR SYSTEM COMPARISON
Put Earth next to Jupiter. Compare the Sun to Betelgeuse. Get a real
feel for how big the universe actually is.
WHY PEOPLE LOVE IT
- Real physics that doesn't feel like homework
- Real astronomy: galaxy formation, planet formation, stellar
evolution, black holes, and more
- Endless replay — every simulation runs differently
- Loved by space fans, students, teachers, and curious kids 9 and up
Rated 4.8 stars by 1,300+ space fans.
NOW FREE TO PLAY
Milky Way just went freemium. Download free.
PRIVACY FIRST
We collect zero data. Nothing leaves your device. No tracking, no
accounts, no ads following you around the internet.
Whether you're a high schooler curious about physics, a stargazer
who wants more than a star map, a teacher hunting for a classroom
tool, or just someone who's always wondered what would happen if
two galaxies collided — Milky Way is built for you.
Download now. Bend gravity. Build worlds. Learn the cosmos.
Valuable Tips for Game Growth: Insights from a Fellow Game Developer
SpaceSheb!
This game is indeed remarkable. I have been searching for a similar experience on the iOS App Store for quite some time, as I recall encountering games of this nature (albeit with subpar graphics) on the Play Store. I express my gratitude to you for creating this game. Allow me to offer you a suggestion: it appears that you have removed advertisements from your game due to user complaints about their excessive frequency. However, once your game attains popularity, reaching, for instance, 100,000 downloads, you may consider reintroducing advertisements at a reduced frequency, such as displaying an ad every 10 minutes. Additionally, if feasible, you could implement an intelligent mechanism that assesses the level of activity on a user's screen, for example checking how many pixels are changing on their sceen to gauge their engagement (higher pixel changes = more engagement) and exhibit advertisements only during periods of minimal activity, ensuring that users are not interrupted during captivating moments. One more tip, you could make the simulation run more smoothly which may be hard but when you find the time to you could. I often see collisions happening in frames which doesn’t let me see the collision, and you could also slow the simulation speed because the stars move way too fast. I hope these recommendations prove beneficial to you, and I wish your game the recognition it rightfully deserves. Thank you, and I also saw your post on Reddit.
Developer Response
Thank you so much for your super helpful tips that allow great user experience while maintaining business viability.
Best space game on the App Store
Cures boredom for a while
This game is amazing! I’ve never seen a mobile game make such realistic destruction with the gravity making cool looking scenes or the galaxy merger mode where you can literally make andromeda and the milky ways collide with the black holes throwing stars everywhere. I do have one complaint and that’s when your in the galaxy merger mode there’s not an option to switch off spawning and then back on. I hope your making that sense you did that with the protoplanets. Over all you have to try this game at least once.
Developer Response
Thank you so much for your 5-star review and a helpful suggestion 🙏 I'll keep working on it. Please stay tuned.
Best game I’ve played but needs more
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Me personally I think this game is amazing because of what it says like galaxy mergers (some adds or Werid) but it needs more like a sandbox mode or add more planets ,stars , and black holes to that collision game mode also give impacts more graphics with you being able to land on the planet and look at collision or when it’s about to happen from the planet that’s colliding Other then that if you add this it would be amazing and thank you for making this awsome game
Can you fix and add these
Crackers wither storm
Can you add custom velocity’s to the stellar collisions and galaxy mergers And can you fix the bug of when you speed the protoplanet simulator the planets explode and when you keep it slow it stays normal and when you put a planet next to a gas giant instead of shrinking the gas giant eats it and plz add custom planets so we can edit the mass velocity and size now the gas giants are exploding as soon as I spawn them and the protoplanets are shaped like the plus sign and when you have a rocky planet then spawn a gas giants the rocky planet explodes so all planets are randomly exploding plz fix this now the planets are turning into plus signs
Developer Response
Thank you so much for your helpful suggestions and the bug report 🙏 I'll keep working on it.
Improve UI/UX in 3D SPH Sandbox game
+ Drag-and-drop planet creation
+ Change the number of particles in the simulation
Version 0.5.2
The developer, Panatpong Jantarawattanawanich, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Panatpong Jantarawattanawanich
Size
446.1 MB
Category
Reference
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.