overworld
/ˈoʊvərˌwərld/Definitions
1. noun
The part of a video game, especially a role-playing game, that is set outside the main game area, often providing a wider perspective on the game world.
“The overworld of the game allowed the players to travel between different regions and complete quests.”
2. noun
A hypothetical realm or dimension that exists above or beyond the physical world, often associated with fantasy or science fiction.
“In the book, the protagonist discovered that the overworld was a realm of eternal peace and harmony.”