The board game Dune: CHOAM and Richese Expansion is the second expansion for the classic board game Dune: A Game of Conquest, Diplomacy, and Betrayal, which was re-released in 2019. This expansion introduces two unique factions, CHOAM and House Richese, as well as new game mechanics. Players can command CHOAM, the greatest economic power in the Dune universe, or House Richese, a noble family that still possesses advanced technology. This expansion also introduces new leader skills, providing players with an advantage over rivals.

Note: To play the Dune: CHOAM and Richese Expansion, the base game Dune: A Game of Conquest, Diplomacy, and Betrayal is required.