The Shivering Isles are ruled by the Daedric Prince of Madness, his name being Sheogorath
. The land is split into two parts, one being Mania and the other Dementia. Players enter the world after downloading the DLC via "A Strange Door".
Players are at first restricted to a small portion of the area called "The Fringe". Reaching other areas requires the player to beat the Gatekeeper of the land. The player is soon conscripted by Sheogorath to prevent the destruction of the Shivering Isles.
Shivering Isles looks quite different from the rest of Cyrodiil. The world is a visual representation of madness
as many of the characters suggest. The land is much more vibrant and colorful compared to other parts of the world.