A thought on Houses: The actual role of the Houses Minor is not elaborated on much in Herbert's work. Perhaps Saintheart, with his copy of the Dune Encyclopedia, can help us out some on this issue. What I've read about the cancelled d20 game, however, seems to indicate that the Houses Minor are mostly planetary powers whose influence may not extend very far beyond a particular world. In fact, the Houses Minor do not, necessarily, even control entire worlds. As such, any number of Houses Minor might be subject to a particular House Major; this makes sense, of course, as the Faufreluches is a kind of feudal system. Perhaps, then, in the structuring of the game, we focus on a few Houses Major and the Houses Minor they lord over. What's more, the Houses Minor apparently convene in something called the Sysselraad, and their decisions are given some weight in the votes of the Landsraad. This, then, could influence the way we decide how the Minor Houses can affect the universe?