Expand your Empire and Rule the World. Age of Empires II: The Conquerors Expansion is the official add-on to the award-winning, best-selling real-time strategy game Age of Empires II: The Age of Kings. Focusing on legendary leaders, The Conquerors Expansion will challenge veterans and novices to wage war on an epic scale with all-new civilizations, unique units and technologies, and campaigns based on infamous conquerors such as Attila the Hun, El Cid and Montezuma.