This expansion adds two new houses, CHOAM and the Richese. Just like the Ixiams, Richese had a well-earned reputation for ingenuity and created important tech innovations. After being ousted from governing Arrakis, they are reduced to selling off important creations simply raise enough funds to continue their efforts to compete. The Combine Honnete Ober Adavancer Mercantiles, control much of the economic affairs across the cosmos and have a keen interest in Arrakis above.