Flat worlds, toroidal planets, cube planets, etc.
My longest-lasting conworld existed on the inner surface of a sphere with a light source at the center. I briefly considered having Yih (the homeworld of the yinrih) be a toroidal planet, but thought it was too out there and decided to give it a ring instead.
I’ve been thinking about a toroidal world for literally decades, on and off.
(This is a magic planet for fantasy based role playing games, so I don’t really care too much about real physics or gravity. Anything that doesn’t fit physics “just works” because it’s magic).
I have notebooks full of maps and diagrams, trying to work out how to map it (possibly two equators, no singular north and south poles), how the cycle of day and night; and seasons; would work. What would the view be like from the “inside” of the donut hole? Is it better to rotate “horizontally” around the centre of the donut hole (I think so) or “vertically” around a north and South Pole on the planet?