I'm making my way through the last chapter of Corpse Party on 3DS (yeah, bit of an older game at this point) and holy wow I can't believe this is actually on a Nintendo system lol. The story is effectively unsettling and disturbing, despite having 16-bit pixel graphics. Most of it relies on your imagination, but the sound effects do a lot to paint a picture.

I usually can't handle playing scary games, but funny enough love watching other people play (or Let's Plays on YT). I did play through P.T. a few years back and that got me to about the limit of what I can handle.