Napoleonic Era 2.1.7b has automatic installers available for Windows and Mac OS X. In addition to the 14 regular civilizations already offered by Age of Empires III and its two official expansion packs ( The WarChiefs and The Asian Dynasties ), the Napoleonic Era presents the players with an additional set of new playable civilizations that hold their own unique units, technologies, buildings, home cities and tactical abilities. The Napoleonic Wars were chosen as the mod's theme because they were regarded as the most influential military events during the time period of Age of Empires III, which did not cover Europe, Africa, and Western Asia as historical spheres of interest.In addition to the 14 regular civilizations already offered by Age of Empires III and its two official expansion packs ( The WarChiefs and The Asian Dynasties ), the Napoleonic Era presents the players with an additional set of new playable civilizations that hold their own unique units, technologies, buildings, home cities and tactical abilities.