TLEILAXU: Led by a small council of Tleilaxu Masters, the fanatic, xenophobic Tleilaxu were tolerated because of their useful genetic engineering superiority. IXIAN: The cyborg, Prince Rhombur of House Vernius, leads the Ixians who are masters of manufacturing and technologies only they know how to deploy. These two new houses open up new play options for the smash hit Dune boardgame.