I've got a couple of ideas floating around in my head for plot, but my real problem is gauging interest. Essentially, I'm thinking about starting a game because no games exist for this fandom anymore and I really want to play with it. But I also don't want to go to the work of creating it if no one's going to want to play. Does anyone have any suggestions for how to go about seeing if there'd be a player base for it?
(Fandom's Bishoujo Senshi Sailor Moon, by the way. It'd most likely be a mixture of anime & manga history.)