So in the spirit of Halloween, here's a list of good horror anime... That is woefully incomplete and that I will update as time goes on, because I want to only recommend things I've already seen and can put a seal of approval on. Don't wanna rec any fuckshit on accident, you know. So don your Dracula capes and glue on your fake fangs (if you have real fangs please email me), here's that good good. Good creepy scary atmospheric anime horror.
I wrote a fairly comprehensive review/recommendation for Another here, and I stand by it as one of the best modern efforts to make a horror anime. I'm probably the only person on Earth to ever recommend it with the caveat that the death scenes are overdone and tacky, but it is legitimately very good at building an atmosphere and the ending is excellent.
The original short movie... The first and frankly only good entry in the franchise. It's much more actiony than scary, but the Halloween setting and vampire theming make it an indispensable watch. It's really not even that much of your time. Please. Watch Saya do big stab with a sword. You won't regret it.
Imagine if Ghost Adventures was real and Zak Bagans was a stoic handsome bishounen instead of being a huge fucking fraud, and you get to be his girlfriend [ASMR]. Then you've got a good rough idea of what Ghost Hunt is. It's a really fun and unique take on the whole ghost hunter deal that I would gladly recommend to anyone looking to get some scares in.
Presidential Alert: The supernatural beings are fightingggggggggg!!!!!!!!!!! Pulling really heavily from traditional Japanese influences, Mononoke is one of the prettiest shows ever made by anybody, and it's also full of legitimately terrifying horror (fitting, as it was originally spun off from Ayakashi:Classic Japanese Horror Tales). Even if you don't like scary stuff, watch it for the art alone. And also because Kusuri-uri is a sex icon. We stan one man.
Fun fact! I was scared shitless of this show as a small child and would cry when it came on. I watched it anyway. It's not really horror so much as it is surrealism, but it is a really good show and full of creepy imagery. Maromi is so cute yet so unsettling.
Uh Oh! I tricked you! This is really a list of Satoshi Kon works! But no, really, you can't have a list of anime horror without including Perfect Blue. It's the anime horror film. It's literally Perfect.
Vampires! Sci-fi! Goth!! Watch vampire movie . D.