I was thinking about the Hollow World setting that came out years ago with the floating continents that circled a molten red sun. Each of the continents are supposed to be devoid of life if you can believe such noise. Anyway the idea I've been having kick around my head is this: what if each of these floating continents are actually where all the people that you don't kill immediately live and the world below is filled with monsters.
It keeps bouncing round my head and I think that would be a lot of fucking fun to explore. I follow that with what the fuck is wrong with me? Ideas like that are soul-suckers that draw you down a rabbit hole where nothing productive gets done and life becomes a dreary repetition where hate is your only sustenance.
What about you? What's the idea that's been kicking about your brain that seems like a great idea and terrible one all at the same time?