Complex sentence: The add-on offered twelve new single-player and twelve multiplayer levels, with a continuation of the storyline begun in the previous game, where the player takes on the role of a new shaman who must restore peace to the solar system.
Split into simpler sentences: The add-on offered twelve new single-player and twelve multiplayer levels, with a continuation of the storyline begun in the previous game. The player takes on the role of a new shaman, who must restore peace to the solar system.