From the ones I've played, Subarashiki Hibi is by far the most fucked up. Shit's REALLY fucked up.
Seems really mysterious, probably with less gore but I think it's worth a try
It's definitely worth a try, a masterpiece of modern literature
Intrigued. Definatelty going on my list.
do it, it's really really great. it's pretty philosophical too if you like that stuff since it's built around wittgenstein's tractatus.
gotta agree with @Aldnox on this one, I haven't read any vn more fucked up than this one so far.