Pbartender said:How setting specific is the adventure?
Probably not much. That was what was cool about Planescape. No matter what campaign you were in, they fit into Planescape neatly. Though the original adventure wasn't a Planescape module, Sigil definitely is Planescape territory. But it has connections to all other settings, including Eberron (yes, I said it Eberron fanboys, Sigil has portals connected to that place too
