'The Spooky Love Tale of Gongchan Seol'-- it's just a bit spooky, the story is alright imo but the concept is pretty good
'MADK'-- cool story, has gore
You Control Me
Suki ni Shitaiyo
Dark Mirror (psychological horror)
Dead Man's Switch (thriller)
Into the Deep (body horror, disproportional monsters)
Mr. Lewelyn's Candlelight Dinner (forgot the full title, just typing the last 2 words is enough)
Dreadful Night (perfect to read as a murder mystery game)
[There are others, but can't remember all 700+ of them]
SHEEP MASK
trust me
Rec sum good gore/horror/dark yaoi, im in the mood rn for sum depraved shit (=・ω・=)