Concentrating on the late medieval period, Age of Chivalry: Hegemony replaces or significantly alters each of the civilizations in the original game, while adding a number of new ones, allowing the player to control Central and Western European states. Many new units and technologies have been added and gameplay dynamics have been changed considerably in this complete overhaul of Age of Empires II.
New civilisations,technologies,units and buildings AND graphics.This mod is perfect even if you are not good at the game.The only flaw is its AI.But you need to get used to it.Great mod.