An extensive look at the Imperium, its society, factions, history, technology, culture, faith, and more. Guidelines for novice and experienced gamemasters on how to run Dune-themed adventures and campaigns of intrigue and adventure for the elite agents of a noble House. Rules for creating a noble House of your own, from House Minor to Major House, detailing its holdings, areas of expertise, and agenda. Systems for architect play, where you become the puppet masters, moving agents to your designs to serve your House. An introductory adventure designed to quickly get you and your fellow players involved in the byzantine plots of the Imperium on Arrakis.