The description this person gives of a lovecraft story as ‘you discover the existence of an ancient god and you go mad’ is exactly the kind of memetic lovecraft I was talking about. There’s very few if any actual lovecraft stories that fit that particular pattern. In actual details, Bloodborne’s focus on pure bloodlines, miscegenation with eldritch monsters, the dangers of scientific curiosity, xenophobia, even entering dream states to explore different worlds is textbook lovecraft tropes that aren’t otherwise common to other turn of the century horror and supernatural fiction. Even the iconic ‘story told through item descriptions’ thematically coheres with intertextual readings of Lovecraft: Almost all of Lovecraft’s stories do not begin with a direct observation of the horror, but with an unreliable second hand account of a reproduction of a facsimile of the event. This works to keep the nature of the world unsettled, to have the truth in the mouths and minds of untrustworthy witnesses.
Yes, people that stop at facile tentacle trivia are wrong but I think it is just as wrong to ignore the many ways the game can be read through a Lovecraftian lens.
As far as specific stories:
Shadow over Innsmouth (bloodlines and miscegenation and xenophobia, but fish people instead of werewolf people, Attention to architectural detail and the ‘level design’ of that chase)
At the Mountains of Madness (the twist that one of the species of aliens is not hostile at all and exploring the remaining ruins of their once great civilization)
Polaris (communicating with star entities, worlds within dreams that exist outside of the normal curve of time)
The Statement of Randolph Carter (journeys into forbidden underworlds that follow rules of dream logic, essentially the Chalice Dungeons can be strongly associated with this story but also with the general lovecraft theme of the true horror being buried underground.)
Celephais (Mostly this echoes the common interpretation of Gehrmann that he is trapped in a dream that resembles a location in the real world. When we later see the main character of Celephais in another dreamlands story, he has grown homesick and made parts of it resemble his memories of the real location)
The Outsider (becoming abhuman from a first person perspective. Many people only memetically aware of Lovecraft assume that there’s a hard separation between human and monstrous in lovecraft’s works but this is not the case at all)
The Festival (obsession with 17th and 18th century architecture:
with its ancient vanes and steeples, ridgepoles and chimney-pots, wharves and small bridges, willow-trees and graveyards; endless labyrinths of steep, narrow, crooked streets, and dizzy church-crowned central peak that time durst not touch
Its the one I think of most in association with Bloodborne. It also centers around a strange occult ritual happening at a centralized church, the denizens of the town becoming progressively less human as the story progresses, and one of them pointing out the ‘family resemblance’ between the narrator and the townsfolk.)
This is rambling and pedantic but I hope this at least illustrates that there are far more commonalities with specifically HPL’s lit than just ‘some of the monsters have tentacles’