From the back of the book: Claim the throne of an ancient kingdom and turn its vast resources to your own ends. Lead a massive legion of warriors into battle. Crush your foes, scatter them before you, and carve your name into history. Empire provides all the rules and guidelines you need to transform your character from wandering hero to mighty lord. Empire introduces rules for managing a tiny barony or a sprawling empire, with details for running battles with thousands of troops on each side. Mass combat rules for epic scale warfare Guidelines for running political campaigns with the d20 system New classes and prestige classes Sample units and foes A complete system for managing kingdoms