This past summer i have fallen in love with Lovecraft, but more specifically, the Cthulhu Mythos.
Call of Cthulhu was my bread and butter as a little comrade growing up. I'd also like to point out that revolutionary fantasy writer China Mieville considers himself inspired by the likes of Lovecraft.
If you're into visual novels, then Demonbane is very heavily influenced by Lovecraft. WARNING: It's 18+ and doesn't really take itself seriously.