Milky Way

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.