World of Warcraft Battle Chest (this is obsolete and no longer available as it has been replaced by the World of Warcraft package) is a collection of World of Warcraft products released by Blizzard Entertainment on October 2, 2007. It combines the DVD versions of World of Warcraft and its first expansion World of Warcraft: The Burning Crusade with the BradyGames strategy guides for both titles, as well as two Guest Pass Keys, in one package at a suggested retail price of $39.99 in the United States and €34.99 in Europe