Planet Crash Sandbox

A solar system you're allowed to break.

Every world pulls on every other

Knock one planet off course and the whole system feels it. Orbits bend, moons tear loose and worlds collide.

Smash planets and watch the chaos

Every star, planet and moon pulls on every other, so nothing in the system is safe. Send one world into another and both break apart into thousands of molten pieces that glow, cool and fall into new orbits, while every planet around them feels the change.

Crash planets on your coffee table

Tap AR and the whole system lands on a real table in front of you. Walk around it, pinch it bigger, and watch a planet break apart right there in your living room.

Collide worlds with real fluid physics

In Fluid Collisions two worlds meet as thousands of liquid particles under their own gravity. A graze drags out a glowing arm, a head-on hit splashes both into a molten cloud, and what survives pulls itself back together. Set the speed, angle and tilt of the shot, then let it fly.

Swap the sun for a black hole

Trade the sun for any of fourteen kinds of star, from red dwarfs to blue supergiants, neutron stars, pulsars and magnetars. Or make it a black hole that bends the starlight behind it and heats the debris spiralling in until it glows white-hot.

Build the worlds you want to break

Turn any planet or moon into another kind of world, from lush and ocean worlds to crystalline ones and gas giants, set its size, or roll the dice for a fresh one. Its mass follows its size, so a bigger world hits harder.

Compute a crash in cinematic detail

Cinematic mode works a collision through at up to 64,000 particles, far more than a phone can run live, then hands you two minutes of it to play back and scrub at full frame rate.

The Planet Crash Sandbox app icon

Coming soon to the App Store