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Everything the universe can do, one chapter each. Or let it show you: the guided lessons walk you through it step by step.
Pinch to zoom. Dragging away from a selected world stops the camera following it; tap it again to follow.
How much simulated time passes for each real second.
This code holds every star, planet, moon and name. Send it to a friend; they paste it below on their own copy of the page to visit.
Visit a friend's universe. Your own universe stays saved; use Return home to come back.