Dream Journal of September 19th

I was playing some kind of horrifying Doom-esque first person game, but with no guns or shooting. I was just a guy opening and closing doors in a vast industrial facility, not unlike SCP. The only enemy was a walking skeleton that didn't even look scary, but had many eldritch powers to make its horror more lovecraftian. It could kill me in one touch, but looking at it also killed me by making me go insane. As our game of cat and mouse continued, it played more mind games on me, causing hallucinations, and leading to levels where I played as the skeleton hunting myself, and a lemure surrounded by other abominations.