As many of you have noted, this book provides many hooks, and basic background for these new worlds, but few new rules, items, and monsters. But think of the future Setting books this may spawn! I can easily see at least one book for each of the planets, plus a space-travel/vehicles book, magi-technology book, augmentations book (mystical&technological), etc.. I've already come up with an addition to the dragonkin, the True-blooded (dragonkin with the half-dragon template, with the damage, energy type, and DC of their breath weapon changing to that of their progenitor, along with their fire immunity being replaced with the respective type).
