Universe Sandbox May 2026

Use the Habitable Zone view (shortcut 'H') to see where liquid water can exist.

Here is how you can put together a story using the tools available in the simulation: 1. Set the Stage (The Star) universe sandbox

Adjust the axial tilt to create extreme seasons or "tidally lock" a planet so one side is always burning and the other is always frozen. 3. Add the Details (Moons, Rings, and Life) Use the Habitable Zone view (shortcut 'H') to

Every cosmic story needs a center. You can begin by adding a to an empty simulation. Once your planets are in orbit, you can

Once your planets are in orbit, you can flesh out their history.

Building a story in is a unique way to explore the "what ifs" of the cosmos, whether you are recreating famous sci-fi worlds like Star Wars systems or simulating the future of our own Solar System .

Will it be a stable yellow dwarf like our Sun, or a volatile blue giant ?