Creating a setting for a tabletop roleplaying game is a lot of work. Regardless of whether it is supposed to be the backdrop for an entire campaign or a temporary location your players find themselves, it takes a lot of work to get it ready. I have had a lot of experience creating worlds, given that it was always my favorite part of writing stories and running D&D games, and I’ve learned a lot of lessons about how to do it effectively and quickly. Not every setting can be created quickly, of course, some things just take time to work out, but I have a few tips and principles I stick to that help me create something I can use without making it so rigid that there’s no room to improvise and adapt as your players (or characters, for written stories) explore.