In order to get maximum rewards per increased difficulty check out Titanite Guide by Robai (very useful for free to play players). The term "floor" in that guide means +10 new fights (visually it's 2 floors).
In order to get maximum rewards per increased difficulty check out Titanite Guide by Robai (very useful for free to play players). The term "floor" in that guide means +10 new fights (visually it's 2 floors).