This expansion for Alhambra contains four different modules which can be combined individually or all together with the basic game. The Favor of the Vizier allows players to take a turn out of order. The Exchange Office contains cards which allow buildings to be purchased using two different currencies. The Bonus Cards include secret tiles which can be revealed to count as an additional building of the type shown. The Building Huts features extra tiles which can be built as an additional action choice (in addition to buying and placing buildings, rearranging one’s Alhambra, and taking money) and count as 0-3 of a given building type, depending on adjacent tiles. You must have the game Alhambra to use this expansion.