Lovecraft detested the cliché-ridden traditional gothic ghost story and has forgone the expectations of the genre to develop a brand of horror personified by a pervasive cosmic evil that lurks just behind visible reality and always threatens to burst forth into the prosaic, mundane world. Bloodborne too seeks to assault the nerves of even the most hardened player on a psychological level.
Enough has been said about what Bloodborne takes from the work of H.P. Lovecraft, but not enough has been said about Bloodborne’s influence from the gothic.
Source: N4G PC Bless Us With Blood: Bloodborne and the Horror of Childbirth