The RPG hobby is in the midst of a significant supply-demand mismatch. With high switching costs and higher still depth of play, most hobbyists stick with one or a couple games and tend to funnel their dollars towards known quantities with existing fanbases and deeper supplement libraries. Meanwhile, there is the appearance that designing a game takes only incrementally more effort than simply running an existing one, something reinforced by the over 130,000 products on DriveThruRPG (most of them selling fewer than 50 copies). Designers struggle to differentiate in this environment, which makes the strategy of hitching your proverbial wagon to an existing property as popular as it ever has been.