Universe Sandbox May 2026

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)

In the , planets aren't just static spheres; they are made of 12 distinct materials , including iron, silicate, water, and hydrogen.

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

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

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 . Adjust the axial tilt to create extreme seasons

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

Will it be a stable yellow dwarf like our Sun, or a volatile blue giant ? Once your planets are in orbit, you can

Every cosmic story needs a center. You can begin by adding a to an empty simulation.