[Term] Dungeon/overworld [Description] 
A subset of "area/map" terminology which is commonly used to describe stock "hub-to-areas" level design; in this case the "overworld" functioning as a hub to the "dungeons". The overworld is often designed to resemble a true landscape, replete with civilization, economy, and expansive terrain design. The player can access dungeons from the overworld, which are areas that more directly challenge the player's abilities, usually using enemies, exploration, and puzzles. This design format is commonly seen in RPGs and action/adventure games, where they originated; they have become so prevalent a concept that the terms are used even when a medieval fantasy element is not present. The overworld is also known as a "world map".