What are "Storyworlds?"

Sometimes the thing that stands out the most of a work of fiction is the world itself. We all know the Star Wars universe, Middle Earth, To Kill A Star, Marvel, or even the DC universe. These worlds are unified by all their stories, and they aren't held back by a couple of bad ones. They can be so engrossing or interesting that entire franchises are build off of knockoffs. Look at Dungeons and Dragons, and all of it's "not middle earth" elements (Balor Demon, tree-ents, and more). We love storyworlds too, we have even made some of our own, or acquired the licences to them. So this is where we will list them out.