In Age of Empires 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 games 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. Playable Native American civilizations Lead one of three proud Native American civilizations, including the Iroquois Confederacy and the Sioux Nation, to expand their empires and fight for control of the Americas. Each Native American civilization has its own unique units, led by the powerful WarChief unit, buildings reflecting each culture's architectural style, and a distinct approach to their Home City feature. Enhancements to European civilizations The expansion pack also provides exciting additions to existing European civilizations, with new Home City content, new units including new mercenaries, and new ways to look at your card deck. ESRB content rating: T for Teen (Blood, Violence) System Requirements Mac OS v10.3.9 or later 1.4GHz or faster PowerPC G5 or Intel Core processor 512MB RAM 64MB VRAM DVD-ROM drive Mfr. Part No.: 10330 Note: Products sold through this website that do not bear the Apple Brand name are serviced and supported exclusively by their manufacturers in accordance with terms and conditions packaged with the products. Apple's Limited Warranty does not apply to products that are not Apple-branded, even if packaged or sold with Apple products. Please contact the manufacturer directly for technical support and customer service.