Does the #dnd tabletop RPG have one official setting? The answer is yes. That setting is the multiverse, which includes all #dnd worlds.
— Jeremy Crawford (@JeremyECrawford) January 22, 2015
@atlemarmy kid keeps asking me to explain whether each setting is a planet or a plane and I don’t know the answer. The worlds occupy pockets of the Material Plane—sort of like planets but in a space shaped by magic and divine forces.
— Jeremy Crawford (@JeremyECrawford) January 22, 2015
@pedr The inhabitants of each world in the Material Plane have different ways of imagining the multiverse (check out chapter 2 in the DMG).
— Jeremy Crawford (@JeremyECrawford) January 23, 2015