Question: Call of Cthulhu: The Official Video Game is an upcoming role-playing survival horror video game developed by Cyanide, it is based on the short story, "The Call of Cthulhu", a short story by which American writer?
Sentence (from "Call of Cthulhu: The Official Video Game"): It is based on H. P. Lovecraft's short story "The Call of Cthulhu", while also being an adaptation of the 1981 role-playing game of the same name.
Relevant evidence: Yes