Fantasium is the name of this world, a world that (for better or worse) is based on areas and characters who have shown up in my dreams, cobbled together into something vaguely coherent. It is one of a set of four different worlds, alongside Pathopeir and Neo-Fantasium as its fellow dream-based areas, and Somnius, a world that is nothing like the others.

Fantasium is split into four major districts- Moonview City in the south, The Treebound Sanctum in the north, the Blackstone Bastion in the east and the Darkshine Carnival in the west. Each of the areas is home to its own unique set of Fantasms.