I'll probably pass, not much time to play computer games these days.
BUT HOLY SHIT...
I was checking out the site and look what I found out:
If you check out the video, and freeze frame right around the dungeon scene, you'll see that a lot of the bricks on that wall are subtly differently shaded than the surrounding ones. (Focus on where the torch is pointing to.)
Took me a while to figure out, but if you block out the differently shaded blocks, what appears is quite disturbing indeed.
I dunno about this guys.