Expansion for Dune that adds two new factions, the Ixians and the Tleilaxu. Tleilaxu: Led by a small council of Masters, the fanatical and xenophobic Tleilaxu were tolerated for their superior expertise in genetic engineering. As despised and undervalued by many, they hope to one day dominate the universe. Ixiani: Prince Rhombur of House Vernius, a cyborg, is the leader of the Ixians, a people of experts in the realization of technologies that no one else would know how to employ. Both the Ixians and the Tleilaxu are essential to the economy of the CHOAM and the Empire. Ix's royal family was once the richest in the universe. Following the invasion of Ix by the Tleilaxu and the Emperor's Sardaukar, and the subsequent liberation of the planet by the Ixians and Atreides, the Ixians and Tleilaxu have become bitter enemies. This expansion also introduces new game mechanics that will help you gain the advantage over your rivals.