Searching Steam for games tagged as lovecraft and horror and sorting by user review gives me about 500 entries.

I think that Lovecraft's setting is actually virtually the only fictional setting where you're spoiled for choice, because Lovecraft permitted other people to use his setting. Like, you only get to do a Star Wars game if Lucasarts licenses it, because they leverage their copyright on the setting. Most people and companies who create a setting don't allow other people to freely use it, and copyright law permits them to make that restriction. But Lovecraft was unusual in that he specifically encouraged other people to build on his world.

Maybe Robin Hood or a small handful of others from history, like Greek or Norse mythology, that developed before copyright law had really become the norm.

I dunno. Maybe there should be some kind of Creative Commons license that permits use of setting and maybe characters, while still keeping an individual work copyrighted, to encourage creation of collaboratively-developed settings like that.

This could mix with other genres as well like survival and potentially rogue-like stuff.

One of the top entries I see on Steam -- though I've never played it -- is an Overwhelmingly Positive-rated game, Disfigure, that appears to be a Lovecraftian action roguelike that just came out a couple of months ago.

https://store.steampowered.com/app/2083160/Disfigure/

EDIT: Well, hmm. Someone tagged it as Lovecraftian, but the author doesn't really describe it that way. Just creepy.