Launching a product page for the upcoming expansion to Age of Empires 3, Microsoft unveiled that its name is Age Of Empires III: The WarChiefs. Thanks: Blues. Age Of Empires III: The WarChiefs will allow players to lead one of three Native American civilizations, including the Iroquois Confederation, to expand their empire and fight for control of the Americas. Scheduled for this Fall, the expansion pack will include new civilizations, a new single player campaign, Home City enhancements and additional maps and units. New screenshots? Three.