Sway fierce battles in your favor with the powerful WarChief and lead one of three great Native American civilizations. Take the next step in the battle for control of the Americans with the WarChiefs Expansion Pack for Age of Empires III. Age of Empires III: The WarChiefs is the first expansion pack for the real-time strategy game Age of Empires III. It was released on October 17, 2006 in the United States. The expansion pack was bundled with the full game of Age of Empires III, called Age of Empires III Gold Edition on October 23, 2007. The Mac version was ported over, developed and published by Destineer's MacSoft. The full game for Mac was released on June 12, 2007 in the United States. It was followed by a second expansion pack to the original game called Age of Empires III: The Asian Dynasties.