Calling Shadow of the Erdtree a DLC is kind of misleading when you actually enter the Land of Shadow and see just how massive this new region is. The base game was already massive, and this feels like another game about half its size was plopped into the world, with bosses, weapons, dungeons, and secrets all included. Among all the hidden areas and items, the most mysterious include the Prayer Room and the Prayer Room Key. Players may stumble upon one or the other — most likely neither — but almost certainly not both without some help. If you’re interested in the lore of the game in particular, you will want to see what’s hidden behind this very secluded door.