Nyarlathotep is a character in the works of H. P. Lovecraft and other writers. The character is commonly known in association with its role as a malign deity in the Lovecraft Mythos fictional universe, where it is known as the Crawling Chaos. First appearing in Lovecraft's 1920 prose poem of the same name, he was later mentioned in other works by Lovecraft and by other writers and in the tabletop role-playing games making use of the Cthulhu Mythos. Later writers describe him as one of the Outer Gods.