This game, I swear to god, is the freakiest thing ever. It's called Ghoul's Forest 3
Back when Doom modding was really popular, some sick fuck made a WAD (which is a modification, but for Doom!) which scared the shit out of the community. It used sprites from other games, so nothing really to custom, but it freaked me out, it looks like it's from 1994, which the graphics ARE, but it's very thrilling.
You need Doom 2 and ZDoom engine to play this masterpiece!
Just thought I'd share some horror-fun. Nice and simple