Emperor: Battle for Dune/Nightmare Fuel


 * The Tleilaxu creations are nightmarish in Dune canon, and they continue to be here. The Contaminators spread mutations that turn other living beings into other Contaminators. When you return to Arrakis, you learn that the Tleilaxu spread the contaminants that create these things across the entire planet, and almost everyone on the planet as been turned into one.