Oh, I'm sure we could come up with quite a few campaign ideas. How about something like a 'world' constructed by Torog. Of course its really the most vast underground vault in existence, but he's equipped it with its own Sun, Moon, etc. Of course the fun part is, its all controlled by Torog, whatever twisted thing THAT means. I'm sure its not a happy fun world... OTOH it isn't just another torture den. Maybe its a little exercise in "How things should have been."