The Elder Scrolls IV®: Shivering Isles, is the official expansion for the award-winning The Elder Scrolls IV: Oblivion. Shivering Isles features more than 30 hours of new gameplay and allows you to explore an entirely new plane of Oblivion – the realm of Sheogorath, the Daedric Prince of Madness. Shivering Isles adds to the existing world of Oblivion so you can continue playing with your existing save game/character, or create an all new character just to explore the new content.