This is a list of adventures and supplements published for the Call of Cthulhu role-playing game.
Call of Cthulhu is a horror fiction role-playing game based on H. P. Lovecraft's story of the same name and the associated Cthulhu Mythos. The game, often abbreviated as CoC, is published by Chaosium; it was first released in 1981 and is in its seventh edition, with licensed foreign language editions available as well. Its game system is based on Chaosium's Basic Role-Playing (BRP) with additions for the horror genre. These include special rules for sanity and luck.
Chaosium Inc. is a publisher of tabletop role-playing games established by Greg Stafford in 1975. Chaosium's major titles include Call of Cthulhu, based on the horror fiction stories of H. P. Lovecraft, RuneQuest Glorantha, Pendragon, based on Thomas Mallory's Le Morte d'Arthur, and 7th Sea, "swashbuckling and sorcery" set in a fantasy 17th century Europe.
Nyarlathotep is a fictional character created by H. P. Lovecraft. The character is a malign deity in the Cthulhu Mythos, a shared universe. First appearing in Lovecraft's 1920 prose poem "Nyarlathotep", he was later mentioned in other works by Lovecraft and by other writers, to the point of often being considered the main antagonist of the Cthulhu Mythos as a whole. He is presented as the messenger of Azathoth. He is later described by other authors as being part of the Other Gods, an alien pantheon.
Arkham is a fictional city situated in Massachusetts, United States. An integral part of the Lovecraft Country setting created by H. P. Lovecraft, Arkham is featured in many of his stories and those of other Cthulhu Mythos writers.
The Dream Cycle is a series of short stories and novellas by author H. P. Lovecraft (1890–1937). Written between 1918 and 1932, they are about the "Dreamlands", a vast alternate dimension that can only be entered via dreams. The Dreamlands are described as lying deeper than space, matter and time, and are a "limitless vacua beyond all thought and entity".
Call of Cthulhu: The Card Game is an out-of-print card game produced and marketed by Fantasy Flight Games from 2004 to 2015. It is based on Chaosium's Call of Cthulhu role-playing game, the writings of H. P. Lovecraft, and other Cthulhu Mythos fiction.
Arkham Horror is a cooperative adventure board game designed by Richard Launius, originally published in 1987 by Chaosium. The game is based on Chaosium's roleplaying game Call of Cthulhu, which is set in the Cthulhu Mythos of H. P. Lovecraft and other horror writers. The game's second edition was released by Fantasy Flight Games in 2005, with a third edition in 2018.
"The Haunter of the Dark" is a horror short story by American author H. P. Lovecraft, written between 5–9 November 1935 and published in the December 1936 edition of Weird Tales. It was the last written of the author's known stories and is part of the Cthulhu Mythos. The epigraph to the story is the second stanza of Lovecraft's 1917 poem "Nemesis".
Lovecraft Country is a term coined for the New England setting used by H. P. Lovecraft in many of his weird fiction stories, which combines real and fictitious locations. This setting has been elaborated on by other writers working in the Cthulhu Mythos. The phrase was not in use during Lovecraft's own lifetime; it was coined by Keith Herber for the Lovecraftian role-playing game Call of Cthulhu.
The Whisperer in Darkness is a 26,000-word novella by American writer H. P. Lovecraft. Written February–September 1930, it was first published in Weird Tales, August 1931. Similar to The Colour Out of Space (1927), it is a blend of horror and science fiction. Although it makes numerous references to the Cthulhu Mythos, the story is not a central part of the mythos, but reflects a shift in Lovecraft's writing at this time towards science fiction. The story also introduces the Mi-Go, an extraterrestrial race of fungoid creatures.
Shadows of Yog-Sothoth is a series of adventures published by Chaosium in 1982 for the horror role-playing game Call of Cthulhu.
Masks of Nyarlathotep, subtitled Perilous Adventures to Thwart the Dark God, is an adventure campaign first published by Chaosium in 1984 for the second edition of the horror role-playing game Call of Cthulhu. A number of revised editions have subsequently been published. Masks of Nyarlathotep is a series of several sequential adventures set in the 1920s that take the player characters from New York, to London, Cairo, Nairobi, and Shanghai as they deal with the threat of the god Nyarlathotep. Screenwriter Larry DiTillio wrote the adventure with game designer Lynn Willis during a writer's strike. It received positive reviews in game periodicals including Casus Belli, The Space Gamer, White Dwarf, Different Worlds, and Dragon, and is considered to be one of the best roleplaying adventures of all time.
The Complete Masks of Nyarlathotep is an adventure campaign published by Chaosium in 1996 for the horror role-playing game Call of Cthulhu; it is the third edition of the adventure campaign Masks of Nyarlathotep originally published in 1984. It is a series of several sequential adventures set in the 1920s that take the player characters from New York, to London, Cairo, Nairobi, and Shanghai as they deal with the threat of the god Nyarlathotep. The Complete Masks of Nyarlathotep is a revised and expanded version of the original adventure scenario with additional material by new authors. It won an Origins Award and received positive reviews in game periodicals including Arcane and Dragon.
Cthulhu Classics is an anthology of adventures published by Chaosium in 1989 for the horror role-playing game Call of Cthulhu.
Miskatonic U. Graduate Kit is an accessory published in 1987 by Chaosium for the horror role-playing game Call of Cthulhu.
Cthulhu Companion is a supplement published by Chaosium in 1983 for Call of Cthulhu.
Pursuit to Kadath is an adventure published in 1983 under license by Theatre of the Mind Enterprises (T.O.M.E.) for Chaosium's horror role-playing game Call of Cthulhu.
The Fungi from Yuggoth is a set of eight adventures published by Chaosium in 1984 for the horror role-playing game Call of Cthulhu, itself based on the works of H.P. Lovecraft.
Arkham Unveiled, subtitled "Adventures and Background in the Home of Miskatonic University", is a supplement published by Chaosium in 1990 for the horror role-playing game Call of Cthulhu, which itself is base on the works of H.P. Lovecraft.