Experience the power of the WarChief in the new expansion for Age of Empires III! In Age of Empire III: the WarChiefs, play as one of three new civilizations - Aztec, Iroquois, or Sioux - each with unique units, buildings, and abilities that will test your strategic mettle. Use upgrades for the European civilizations from the original game to earn civ-specific bonuses, build units at a new mercenary saloon, collect new Cards, and battle toward victory with the new Revolution feature. Explore the new single player Campaign and follow the continuing tale of the Black family as they witness the birth of a new nation.