Buru AmbelauNumber of Players: 1 5 The Ambelau expansion adds seven discrete modules to expand and deepen your games of Buru, including a new board region, multiple mini expansions, and the option for a fifth player. These modules may be used individually or in any combination. Included in this expansion are: Fifth Player Module: All the components required to add a fifth player to the game. Ukum Module: The spirit Ukum represents justice and order on Buru.