Black & White: Creature Isle is the first and only official expansion pack released for Black & White. Creature Isle differs greatly from the main game in that the entire game takes places on one level, the Isle of Creatures. The Creature AI and training system has been expanded upon; creatures can learn new traits and can now keep pets. The main objective of the expansion is completing missions from the Brotherhood, a group of independent creatures who are not controlled by a god. In fact, the player is the only god in the game.