Horror animes?

Well, JoJo is a one horrorest, like Dio final battle, or Death 13 with his dream world is freackin me out!

Another and maybe Serial Experiments Lain

Tokyo dragon, Zombie world, Jagaaaaan, Sweet Home(webtoon) there are so many

Steins;Gate
-Erased
-Death Note
-Hellsing Ultimate
-Mob Psycho 100
-Psycho Pass
-Death Parade
-Tokyo Ghoul
-Elfen Lied
-Claymore
-Shiki
-Devilman: Crybaby
-Akira
-Mardock Scramble
-K
-Deadman Wonderland
-King of Thorn
-Gantz
-Kabaneri of the iron Fortress
-Attack on Titan
-Jigoku Shoujo (Hell Girl)
-Ghost Hunt

i have some recs that r like within the realm of scary so id say u could school days lol, shiki, elfen lied for gore, corpse party (for entertainments sake), deadman wonderland and HIGURASHI ! some of these arent even good plot wise but it should satiate the horror factor