Ruan is a world that I've had in my head for a few years now, and it keeps evolving and changing and eating up my other world ideas to make this big but vaguely laid out thing.

Luckily, through a World Design class I was taking, I had the chance to flesh it out a bit more, but it still has a long way to go.

In this smog infested collapsing world, people are kind of forced to take refuge in any place they can find. These are small villages that are attached to the ruined tops of skyscrapers, keeping them held up above the poisonous smog.