There also new units that are shared with many civs like: Napoleonic Era adds plenty of new unique units to the game such as: The new maps received new minor civs like: Napoleonic Era comes with over 20 new maps, for example: The expansion mod adds 7 new and reworks 2 old civilizations with unique units, techs, politicians, AI personalities, unit sounds and homecities: The Napoleonic Wars were chosen as the mod's theme because these count to 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. It greatly expands and reworks the game with new units, buildings, maps, sounds, music, civilizations and a better AI. Napoleonic Era is and has been one of the most popular mods for Age of Empires III and its expansions for over 8 years.