Universe Sandbox Guide

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)

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) universe sandbox

Will it be a stable yellow dwarf like our Sun, or a volatile blue giant ? Adjust the axial tilt to create extreme seasons

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