Cube Planets

The Mainframe contains many cube planets, that together make up a Galaxy.

The gravity on cube planets always points down. However, when you get to a corner of a cube planet, there is a special edge effect where you switch over to the gravity of the other side.

If you are creative, you can play with these effects. For example, putting a loot box that you can only access while standing on it, so that you have to cross over to another side, then walk back to drop on top of it.