I have just ordered a physical copy of RUNE and after perusing the Creator document to design realms I have thought about perhaps designing a RUNE realm at some time. I am new to this universe. Is there any suggested documents about the world so that I can get some sense of what content would work. For example, I love dungeon delving would a exclusively dungeon setting be permitted? Could I make up my own monsters or is there a bestiary I should follow?