Bethesday today announced that The Elder Scrolls IV: Shivering Isles (Official Expansion) for Xbox 360 and PC would be released in Spring 2007.

The Shivering Isles expansion will feature more than 30 hours of gameplay and takes gamers to a new plane of Oblivion, the realm of Sheograth, the Daedric Prince of Madness. Gamers will be able to continue playing with their current save game/character or create a new one.

"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," said Todd Howard, executive producer for The Elder Scrolls."

The PC version of The Elder Scrolls IV: Shivering Isles will be available for purchase at retail locations, while the Xbox 360 version is planned to be distributed through Xbox Live Marketplace. No price has been set at this time.