Cthulhu Classic (1920s & 1930s) Rulebooks

Investigators' Companion, Volume 2: Occupations & Skills

1994 Alternate Rules Sourcebook Call of Cthulhu (2nd - 6th Edition) 1920s Investigator's Companion (1) Horror (Cthulhu Mythos)

The 1920s Investigator's Companion

1996 Sourcebook Call of Cthulhu (2nd - 6th Edition) 1920s Investigator's Companion (1) Horror (Cthulhu Mythos)

Abominations of the Amazon

2009 Adventure Call of Cthulhu (2nd - 6th Edition) Age of Cthulhu (1) Horror (Cthulhu Mythos)

Death in Luxor

2008 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Age of Cthulhu (1) Horror (Cthulhu Mythos)

Madness in London Town

2008 Adventure Call of Cthulhu (2nd - 6th Edition) Age of Cthulhu (2) Action / Adventure (Pulp) Horror (Cthulhu Mythos)

Shadows of Leningrad

2009 Adventure Call of Cthulhu (2nd - 6th Edition) Age of Cthulhu (3) Action / Adventure (Pulp) Horror (Cthulhu Mythos)

Horrors From Yuggoth

2009 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Age of Cthulhu (4) Action / Adventure (Pulp) Horror (Cthulhu Mythos)

The Long Reach of Evil

2010 Adventure Call of Cthulhu (2nd - 6th Edition) Age of Cthulhu (5) Horror (Cthulhu Mythos)

A Dream of Japan

2010 Adventure Call of Cthulhu (2nd - 6th Edition) Age of Cthulhu (6) Horror (Cthulhu Mythos)

The Timeless Sands of India

2011 Adventure Call of Cthulhu (2nd - 6th Edition) Age of Cthulhu (7) Horror (Cthulhu Mythos)

Starfall Over the Plateau of Leng

2013 Adventure Call of Cthulhu (2nd - 6th Edition) Age of Cthulhu (8) Horror (Cthulhu Mythos)

The Darkness Over Arkham

2023 Solo Play Resource Novel Arkham Horror Investigators Gamebo… Arkham Horror Investigator Gameboo… (1) History (Americas) Horror (Cthulhu Mythos) Fantasy Horror

The Tides of Innsmouth

2024 Solo Play Resource Arkham Horror Investigators Gamebo… Arkham Horror Investigators Gamebo… (2) Horror (Cthulhu Mythos) Fantasy

Cthulhu Classics

1989 Adventure Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu (1st Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos) Weird / Surreal

Curse of Cthulhu

1990 Adventure Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

Death in Dunwich

1983 Adventure Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu (1st Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

Escape From Innsmouth (1st Edition)

1991 Adventure Sourcebook Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

Green and Pleasant Land

1987 Adventure Sourcebook Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

King of Chicago

1993 Adventure Sourcebook Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

Mansions of Madness (1st Edition)

1989 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

Minions

1997 Adventure Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu (1st Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

Shadows of Yog-Sothoth (1st Edition)

1981 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

Terror Australis

1987 Adventure Sourcebook Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu (1st Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

Terror From the Stars

1985 Adventure Sourcebook Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

The Asylum & Other Tales

1983 Adventure Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu (1st Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

The Compact Trail of Tsathoggua

1997 Adventure Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu (1st Edition) Call of Cthulhu: Adventure: 1920s (1) Horror Horror (Cthulhu Mythos) Occult

The Great Old Ones

1989 Adventure Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu (1st Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

The Horrible Secret of Monhegan Island

1984 Adventure Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu: Adventure: 1920s (1) Horror (Cthulhu Mythos)

A Sourcebook for the 1920's

2002 Sourcebook Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu: Core Book (1)

Call of Cthulhu (5th Edition)

1991 Campaign Setting Core Rules Adventure Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu: Core Book (1) History (Americas) History (Victorian Era) Modern Horror (Cthulhu Mythos) Weird / Surreal

Call of Cthulhu Roleplaying Game

2001 Campaign Setting Core Rules Call of Cthulhu Roleplaying Game (… Call of Cthulhu: D20 System (1) Horror (Cthulhu Mythos)

Avalon: The County of Somerset

2009 Adventure Sourcebook Call of Cthulhu (2nd - 6th Edition) Cthulhu Britannica (1) Horror (Cthulhu Mythos)

Cthulhu Britannica

2008 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Cthulhu Britannica (1) Horror (Cthulhu Mythos)

Cthulhu Britannica: Folklore

2011 Adventure Sourcebook Call of Cthulhu (2nd - 6th Edition) Cthulhu Britannica (1) Horror (Cthulhu Mythos)

Cthulhu Britannica: London

2014 Sourcebook Call of Cthulhu (7th Edition) Cthulhu Britannica (1) Horror (Cthulhu Mythos)

Cthulhu Britannica: London - Adventures in Mythos

2014 Book Part Sourcebook Call of Cthulhu (7th Edition) Cthulhu Britannica (1) Horror (Cthulhu Mythos)

Cthulhu Britannica: London - Investigator's Guide

2014 Book Part Sourcebook Call of Cthulhu (7th Edition) Cthulhu Britannica (1) Horror (Cthulhu Mythos)

Cthulhu Britannica: London - Keeper's Guide

2014 Book Part Sourcebook Call of Cthulhu (7th Edition) Cthulhu Britannica (1) Horror (Cthulhu Mythos)

Shadows Over Scotland

2010 Campaign Setting Adventure Sourcebook Call of Cthulhu (2nd - 6th Edition) Cthulhu Britannica (1) Horror (Cthulhu Mythos)

The Ballad of Bass Rock

2011 Adventure Call of Cthulhu (2nd - 6th Edition) Cthulhu Britannica (1) Horror (Cthulhu Mythos)

The Curse of Nineveh

2014 Adventure Call of Cthulhu (7th Edition) Cthulhu Britannica (1) Horror (Cthulhu Mythos) History (Europe)

Digging for a Dead God

2008 Adventure Call of Cthulhu (2nd - 6th Edition) Curse of the Yellow Sign (1) Horror (Cthulhu Mythos)

Call of Cthulhu 7th Edition Quick-Start Rules

2012 Fast Play Rules Call of Cthulhu (7th Edition) Gratisrollenspieltag 2015 (1) Horror (Cthulhu Mythos)

Before the Fall

1998 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Lovecraft Country Series (1) Horror (Cthulhu Mythos)

Realms of Cthulhu

2008 Campaign Setting Sourcebook Savage Worlds Explorer's Edition (… Realms of Cthulhu (1) Action / Adventure (Pulp) Horror (Cthulhu Mythos)

A Cold Fire Within

2018 Campaign Setting Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Alone Against the Dark (1st Edition)

1984 Solo Play Resource Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

Alone Against the Dark (2nd Edition)

2016 Solo Play Resource Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Alone Against the Flames

2014 Solo Play Resource Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Alone Against the Frost

2018 Solo Play Resource Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Alone Against the Tide (2nd Edition)

2019 Solo Play Resource Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Alone Against the Wendigo

1984 Solo Play Resource Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

A Peculiar Pentad

2008 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

Arkham Sanitarium

1996 Sourcebook Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

A Time for Sacrifice

2019 Adventure Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Berlin: The Wicked City

2018 Campaign Setting Adventure Call of Cthulhu (7th Edition) History (Europe) Horror (Cthulhu Mythos)

Black Goat of New Orleans

2013 Adventure Call of Cthulhu (2nd - 6th Edition) Crime (Mystery / Detective / Noir) Horror (Cthulhu Mythos)

Bookhounds of London

2009 Campaign Setting Trail of Cthulhu Horror (Cthulhu Mythos)

Cathulhu

2006 Alternate Rules Sourcebook Call of Cthulhu (2nd - 6th Edition) Animal Horror (Cthulhu Mythos)

Cold Warning

2016 Adventure Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Cthulhu Casebook

1990 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

Dead Light

2012 Adventure Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Dead Light and Other Dark Turns

2018 Adventure Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Dwellers in Shadow

1995 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

Grimrock Isle

1991 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

Harlem Unbound (2nd Edition)

2019 Sourcebook Call of Cthulhu (7th Edition) History (Americas) Horror (Cthulhu Mythos)

Horror's Heart

1996 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

H. P. Lovecraft's Arkham

2002 Campaign Setting Adventure Sourcebook Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Call of Cthulhu Roleplaying Game (… Horror (Cthulhu Mythos)

Investigator Handbook

2013 Core Rules Sourcebook Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Keeper Rulebook

2013 Core Rules Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Keeper Rulebook (Revised)

2013 Core Rules Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Lurking Fears

1989 Adventure Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

Mansions of Madness (2nd Edition)

2007 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

Mansions of Madness Volume I: Behind Closed Doors

2019 Adventure Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Masks of Nyarlathotep (3rd & 4th Edition)

1995 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) History Horror (Cthulhu Mythos)

Mythos Expeditions

2013 Adventure GUMSHOE Trail of Cthulhu Horror (Cthulhu Mythos)

Shadows of Cthulhu

2008 Core Rules True20 Horror (Cthulhu Mythos)

Spawn of Azathoth (1st Edition)

1986 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

Tales of the Sleepless City

2012 Adventure Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

Tatters of the King

2005 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

Terror Australis (2nd Edition)

2017 Campaign Setting Adventure Call of Cthulhu (7th Edition) History Horror (Cthulhu Mythos)

The Cairo Guidebook

1995 Campaign Setting Sourcebook Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

The Children of Fear

2019 Adventure Maps Call of Cthulhu (7th Edition) Culture (Asian / Far Eastern) Horror (Cthulhu Mythos)

The Creature Companion

1997 Sourcebook Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)

The Dreaming Stone

1996 Adventure Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) Fantasy Horror (Cthulhu Mythos)

The London Guidebook

1996 Sourcebook Call of Cthulhu (1st Edition) Call of Cthulhu (2nd - 6th Edition) History (Britain / Ireland) History (Europe) Horror (Cthulhu Mythos)

The Shadow Over Providence

2018 Adventure Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

The Star on the Shore

2016 Adventure Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Trail of the Loathsome Slime

1984 Adventure Call of Cthulhu (2nd - 6th Edition) Horror (Cthulhu Mythos)