And we are here again. When I started talking about the many D&D settings it was a simple Twitter thread. I was trying to list all the official D&D published D&D settings. I was trying to figure out what Wizards of the Coast might release next as a setting in 5e. They had already released a large amount for Forgotten Realms and had just announced Ravnica and Eberron books. I thought I could list them all off as I had been around for most of them.
I managed to get most of the big ones. The ones I missed were the sub-settings (subsets of the larger settings), meta-settings(settings that crossover to other settings) and the micro settings. Micro settings are small tightly contained campaign settings with little thought given to a larger world.