Bethesda Softworks has confirmed the upcoming release of The Elder Scrolls IV: Shivering Isles, the official expansion for the award-winning The Elder Scrolls IV: Oblivion.

Shivering Isles will be released for Xbox 360 this Autumn. 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 players can continue playing with their existing save game/character, or create an all new character just to explore the new content.

“We’re thrilled with the response that Oblivion has received to date and feel that Shivering Isles will offer a whole new and different experience to anyone who played and enjoyed Oblivion,” says Todd Howard, executive producer for Elder Scrolls.

Within the Realm of Sheogorath, players can explore the two extreme sides of the god’s madness – the sublimely creative and the completely psychotic. Something is happening to the Shivering Isles and Sheogorath himself looks to the player to be his champion and defend his realm and its inhabitants from destruction.

Shivering Isles features a bizarre landscape split between the two sides – Mania and Dementia –filled with vast, twisting dungeons mirroring the roots of the trees they are buried within. Players will encounter more than a dozen new creatures including hideous insects, Flesh Atronachs, skeletal Shambles, and amphibious Grummites. Throughout the adventure, players will discover all new items, ingredients, spells, and more, and have the talented craftsmen of Crucible and Bliss forge new armour and weapons just for them.

“The enthusiastic response we’ve received to our downloadable content has been overwhelming, and we’re excited to bring Oblivion fans a full expansion,” says Vlatko Andonov, president of Bethesda Softworks. “The world we’ve created for Shivering Isles is unlike anything you’ve seen or played in Oblivion and we can’t wait for folks to play it.”

Released in March 2006 for Xbox 360, Oblivion sold more than three million units in 2006. The Windows version of Shivering Isles will be available at retail and is co-published by Bethesda Softworks and 2K Games, while the Xbox 360 version is currently planned for release through Xbox Live.

For more information, visit elderscrolls.com.