Azilut: It's a bit of a stretch to call this one Lovecraftian, but those who enjoy Lovecraft (in the "ancient forbidding secrets" sense, not the "BLARGH Squiddemon!" sense) will probably also enjoy
Barrow Hill.
Possibly. It nails its visual/aual atmosphere, that's for sure, and it's not too confounding in the puzzle department. But I personally found the actual horror to be badly done, sometimes even humorous.
Has anyone mentioned Scratches yet? Because it's got some issues when it comes to its gameplay, but the horror is fantastic and very Lovecraft inspired.