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)

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

You can even create a "Tiny System" by shrinking a star down to the size of a flashlight while keeping it hot enough to support life. 2. Build the Worlds (Planetary Composition) Adjust the axial tilt to create extreme seasons