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Message: <blockquote data-quote="orsal" data-source="post: 1778351" data-attributes="member: 16016">I've contemplated (haven't actually done it) doing a world that's a torus. Imagine a rectangular world map, but that if you go off the right edge you come back on the left edge, and if you go off the top edge you come back on the bottom. (It's also equivalent to playing on the surface of a donut.) This means that there can be no absolute north and south, only relative, since going north all the way around the world becomes south. East and west work like that in our world, so it's not such a crazy idea.I briefly considered a projective plane, Mobius strip or Klein bottle; those are stranger surfaces on which you can go off one edge and show up on the opposite side but reversed, so that if you keep going east until you go all the way around the world you come back and find that your idea of south has turned into north and vice versa. Also that your idea of up has turned into down and vice versa. When I realized that would happen I decided it really wouldn't work out, so I abandoned those plans. But the torus I think would be possible.Of course, I'd only do this if I actually expected players in the course of the campaign to travel around the world. Otherwise, I'd just stick with the "we know what it looks like locally, who really cares beyond that" approach.</blockquote>