Dragons, Dracoliches, and Drakes (Roses, Thorns, and Buds but elfgames)
Dragons: I really like the extra lives mechanics as well as the Castle Cleared Number.
Dracoliches: The rooms in each castle are all dressed up and there aren't really anything to them aside for enemies, which in a game like shadowdark, isn't gonna go well for the PCs.
Drakes: The skeleton is there for eight dungeons though the GM is going to need to beef them up substantially. Definitely enough information given to do so though.