From the introduction: Hello and welcome to my shop rules! The shop rules are meant to be used as the basis for a campaign, not just as a downtime activity. These rules are best for a group of adventurers who enjoy searching for treasure, hunting monsters, and building up a ridiculous amount of wealth through their adventures. Instead of constantly working towards a BBEG or other overlying end goal and going on adventures that specifically contribute to that goal, this campaign gives the DM a way to have many different, mostly unrelated adventures for the players but still gives them a constant sense of progression to work towards. Along with that, the rules give the DM opportunities to spark curiosity in their players about the shop itself and its origins.