An idle game that doesn't require a lot of effort. As you upgrade your planet, it will change before your very eyes. Add atmosphere to start, and as you gain more and more spirit, you can purchase better upgrades.
Atmosphere, Land, Plants, Humans, and Temples all have visual effects attached to their overall level. Bacteria (too small), Organisms (too small), Prophets (just humans), and Animals (too small) don't have any visible changes.