| Title | Pages | Publication | Code | Date | Publisher | System (Setting) |
|---|
 The Adventure Begins | A:14-17 |  Spawn of Azathoth | CHA2316-X | 1986 | Chaosium | Call of Cthulhu (Classic) | Providence; 1927; May |
 Advice for Players | 208-223 |  Investigator's Handbook | CHA23136 | 2015 | Chaosium | Call of Cthulhu (Classic) | |
 Alien Races | 150-164 |  The Keeper's Companion Vol 1 | CHA2388 | 2000 | Chaosium | Call of Cthulhu (Classic) | |
| Alien Races | 53-66 | Keeper's Compendium | CHA2344 | 1993 | Chaosium | Call of Cthulhu (Classic) | |
| The Andaman Islands | B:28-35 | Spawn of Azathoth | CHA2316-X | 1986 | Chaosium | Call of Cthulhu (Classic) | India; 1927; Atlach-Nacha |
| The Andaman Islands | 94-105 | Spawn of Azathoth | CHA23101 | 2005 | Chaosium | Call of Cthulhu (Classic) | India; 1927; Atlach-Nacha |
| Appendix A: The Professional Investigator | 56-60 | 1920s Investigator's Companion Vol. II | CHA2346 | 1994 | Chaosium | Call of Cthulhu (Classic) | |
| Appendix B: 1920s Forensics | 61-62 | 1920s Investigator's Companion Vol. II | CHA2346 | 1994 | Chaosium | Call of Cthulhu (Classic) | |
| Becoming an Investigator | 15-68 | The 1920s Investigator's Companion | CHA2370 | 1997 | Chaosium | Call of Cthulhu (Classic) | |
| A Brief History of Arkham | 13-16 | Arkham Unveiled | CHA2325 | 1990 | Chaosium | Call of Cthulhu (Classic) | |
| By the Bay, Part I | 47-54 | The Fungi From Yuggoth | CHA2305 | 1984 | Chaosium | Call of Cthulhu (Classic) | San Francisco; 1929; August |
| By the Bay, Part I | 67-74 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | San Francisco; August; 1929 |
| By the Bay, Part II | 55-60 | The Fungi From Yuggoth | CHA2305 | 1984 | Chaosium | Call of Cthulhu (Classic) | San Francisco; 1929; August |
| By the Bay, Part II | 75-80 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | San Francisco; August; 1929 |
| By the Bay, Part One | 98-106 | Day of the Beast | CHA2374 | 1998 | Chaosium | Call of Cthulhu (Classic) | San Francisco; August; 1929 |
| By the Bay, Part Two | 107-113 | Day of the Beast | CHA2374 | 1998 | Chaosium | Call of Cthulhu (Classic) | San Francisco; August; 1929 |
| The Case | 7-14 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | Providence; 1928 |
| Castle Dark | 19-29 | The Fungi From Yuggoth | CHA2305 | 1984 | Chaosium | Call of Cthulhu (Classic) | Romania; 1929 |
| Castle Dark | 60-70 | Day of the Beast | CHA2374 | 1998 | Chaosium | Call of Cthulhu (Classic) | Romania; 1929 |
| Castle Dark | 39-49 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | Romania; 1929 |
| The Condemned | 116-134 | Arkham Unveiled | CHA2325 | 1990 | Chaosium | Call of Cthulhu (Classic) | Arkham; 1920s |
| The Condemned | 166-188 | H.P. Lovecraft's Arkham | CHA8803 | 2003 | Chaosium | Call of Cthulhu (Classic) | Arkham; 1920s |
| Creating Investigators | 40-65 | Investigator's Handbook | CHA23136 | 2015 | Chaosium | Call of Cthulhu (Classic) | |
| The Cthulhu Mythos | 10-12 |  Different Worlds | 40 | Jul 1985 | Chaosium | Call of Cthulhu (Classic) | |
| The Curse of Tsathoggua | 30-47 | The Compact Trail of Tsathoggua | CHA2362 | 1997 | Chaosium | Call of Cthulhu (Classic) | Canada |
| The Curse of Tsathoggua | 22-37 | The Trail of Tsathoggua | CHA2308 | 1984 | Chaosium | Call of Cthulhu (Classic) | Canada |
| d20 Cthulhu Townsfolk | 212-224 | H.P. Lovecraft's Arkham | CHA8803 | 2003 | Chaosium | Call of Cthulhu (Classic) | |
| d20 Investigator Backgrounds | 207-211 | H.P. Lovecraft's Arkham | CHA8803 | 2003 | Chaosium | Call of Cthulhu (Classic) | |
| d20 System Conversions | 165-174 | H.P. Lovecraft's Dunwich | CHA8802 | 2002 | Chaosium | Call of Cthulhu (Classic) | |
| Day of the Beast | 61-64 | The Fungi From Yuggoth | CHA2305 | 1984 | Chaosium | Call of Cthulhu (Classic) | Egypt; September; 1929 |
| Day of the Beast | 114-118 | Day of the Beast | CHA2374 | 1998 | Chaosium | Call of Cthulhu (Classic) | Egypt; 1929; September |
| Day of the Beast | 81-84 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | Egypt; September; 1929 |
| Dead of Night | 135-150 | Arkham Unveiled | CHA2325 | 1990 | Chaosium | Call of Cthulhu (Classic) | Arkham; 1920s |
| Dead of Night | 189-206 | H.P. Lovecraft's Arkham | CHA8803 | 2003 | Chaosium | Call of Cthulhu (Classic) | Arkham; 1920s |
| The Dreamer | 8-13 | The Fungi From Yuggoth | CHA2305 | 1984 | Chaosium | Call of Cthulhu (Classic) | New York; Summer; 1928 |
| The Dreamer | 34-42 | Day of the Beast | CHA2374 | 1998 | Chaosium | Call of Cthulhu (Classic) | New York; Summer; 1928 |
| The Dreamer | 25-33 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | New York; Summer; 1928 |
| The Dreamlands | 16-18 | Different Worlds | 41 | Jan 1986 | Chaosium | Call of Cthulhu (Dreamlands) | |
| The Dunwich Horror | 118-122 | Return to Dunwich | CHA2330 | 1991 | Chaosium | Call of Cthulhu (Classic) | |
| The Dunwich Horror | 155-160 | H.P. Lovecraft's Dunwich | CHA8802 | 2002 | Chaosium | Call of Cthulhu (Classic) | |
| Dunwich Village | 27-47 | Return to Dunwich | CHA2330 | 1991 | Chaosium | Call of Cthulhu (Classic) | |
| Earth, Sky, Soul | 151-154 | H.P. Lovecraft's Dunwich | CHA8802 | 2002 | Chaosium | Call of Cthulhu (Classic) | Dunwich |
| Edge of Darkness | 225-232 | Call of Cthulhu | CHA2386 | 1999 | Chaosium | Call of Cthulhu (Classic) | Arkham; 1928 |
| The Edge of Darkness | 256-264 | Call of Cthulhu | CHA23106 | 2005 | Chaosium | Call of Cthulhu (Classic) | Arkham; 1928 |
| The Edge of Darkness | 161-169 | Call of Cthulhu | CHA2336 | 1992 | Chaosium | Call of Cthulhu (Classic) | Arkham; 1928 |
| Edge of Darkness | C:19-50 | Call of Cthulhu Starter Set | CHA23158-X | 2018 | Chaosium | Call of Cthulhu (Classic) | Arkham; 1928 |
| Equipment & Arms | 45-64 | 1920s Investigator's Companion Vol. I | CHA2343 | 1993 | Chaosium | Call of Cthulhu (Classic) | |
| The Eternal Quest | B:45-52 | Spawn of Azathoth | CHA2316-X | 1986 | Chaosium | Call of Cthulhu (Classic) | Dreamlands; 1927; Ghoul |
| The Eternal Quest | 122-134 | Spawn of Azathoth | CHA23101 | 2005 | Chaosium | Call of Cthulhu (Classic) | Dreamlands; 1927; Ghoul |
| The Evil Stars | 107-124 | Cthulhu Now | CHA2322 | 1987 | Chaosium | Call of Cthulhu (Now) | Florida; Hastur |
| The Evil Stars | 107-124 | Cthulhu Now | CHA3307 | 1992 | Chaosium | Call of Cthulhu (Now) | Florida; Hastur |
| Foiling the Brotherhood | 65 | The Fungi From Yuggoth | CHA2305 | 1984 | Chaosium | Call of Cthulhu (Classic) | |
| Foiling the Brotherhood | 85 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | |
| Forbidden Books | 6-34 | Keeper's Compendium | CHA2344 | 1993 | Chaosium | Call of Cthulhu (Classic) | |
| Garrison, Montana | B:3-13 | Spawn of Azathoth | CHA2316-X | 1986 | Chaosium | Call of Cthulhu (Classic) | Montana; May; 1927 |
| Garrison, Montana | 52-68 | Spawn of Azathoth | CHA23101 | 2005 | Chaosium | Call of Cthulhu (Classic) | Montana; 1927; May |
| A Ghostly Presence | 16-23 | Spawn of Azathoth | CHA23101 | 2005 | Chaosium | Call of Cthulhu (Classic) | |
| A Guide to Arkham | 20-91 | The Compact Arkham Unveiled | CHA2356 | 1995 | Chaosium | Call of Cthulhu (Classic) | |
| A Guide to Arkham | 19-93 | Arkham Unveiled | CHA2325 | 1990 | Chaosium | Call of Cthulhu (Classic) | |
| A Guide to Arkham | 41-134 | H.P. Lovecraft's Arkham | CHA8803 | 2003 | Chaosium | Call of Cthulhu (Classic) | |
| A Guide to Dunwich Environs | 64-118 | H.P. Lovecraft's Dunwich | CHA8802 | 2002 | Chaosium | Call of Cthulhu (Classic) | |
| A Guidebook to Dunwich Environs | 47-97 | Return to Dunwich | CHA2330 | 1991 | Chaosium | Call of Cthulhu (Classic) | |
| Halls of Celaeno | 66-68 | The Fungi From Yuggoth | CHA2305 | 1984 | Chaosium | Call of Cthulhu (Classic) | Celaeno; 1929 |
| The Halls of Celaeno | 71-76 | Day of the Beast | CHA2374 | 1998 | Chaosium | Call of Cthulhu (Classic) | Celaeno; 1929 |
| Halls of Celaeno | 86-88 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | Celaeno; 1929 |
| The Haunted House | 95-119 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | Boston; 1920 |
| History of Arkham | 16-19 | The Compact Arkham Unveiled | CHA2356 | 1995 | Chaosium | Call of Cthulhu (Classic) | |
| History of Arkham | 36-40 | H.P. Lovecraft's Arkham | CHA8803 | 2003 | Chaosium | Call of Cthulhu (Classic) | |
| Howard Phillips Lovecraft | 104-107 | Call of Cthulhu | CHA2386 | 1999 | Chaosium | Call of Cthulhu (Classic) | |
| Howard Phillips Lovecraft | 115-119 | Call of Cthulhu | CHA23106 | 2005 | Chaosium | Call of Cthulhu (Classic) | |
| Howard Phillips Lovecraft | 186-187 | Call of Cthulhu | CHA2336 | 1992 | Chaosium | Call of Cthulhu (Classic) | |
| Introduction | 10-17 | Investigator's Handbook | CHA23136 | 2015 | Chaosium | Call of Cthulhu (Classic) | |
| Investigator Organizations | 122-145 | Investigator's Handbook | CHA23136 | 2015 | Chaosium | Call of Cthulhu (Classic) | |
 Keeper's Bookmark | | Keeper's Kit | CHA5110 | 1992 | Chaosium | Call of Cthulhu (Classic) | |
| Keeper's Screen | | Keeper's Kit | CHA5110 | 1992 | Chaosium | Call of Cthulhu (Classic) | |
| Life as an Investigator | 146-159 | Investigator's Handbook | CHA23136 | 2015 | Chaosium | Call of Cthulhu (Classic) | |
| The Little People | 2-23 | Keeper's Kit | CHA5110 | 1992 | Chaosium | Call of Cthulhu (Classic) | Arkham; 1920s |
| Mountains of the Moon | 37-46 | The Fungi From Yuggoth | CHA2305 | 1984 | Chaosium | Call of Cthulhu (Classic) | Peru; July; 1929 |
| Mountains of the Moon | 86-97 | Day of the Beast | CHA2374 | 1998 | Chaosium | Call of Cthulhu (Classic) | Peru; July; 1929 |
| Mountains of the Moon | 57-66 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | Peru; July; 1929 |
| Movie Previews | 6-9 | Blood Brothers 2 | CHA2340 | 1992 | Chaosium | Call of Cthulhu (Classic) | |
| Mysteries, Legends and Rumors | 161-164 | H.P. Lovecraft's Dunwich | CHA8802 | 2002 | Chaosium | Call of Cthulhu (Classic) | |
| Mysterious Innsmouth | 6-12 | Escape from Innsmouth | CHA2338 | 1992 | Chaosium | Call of Cthulhu (Classic) | |
| Mysterious Innsmouth | 8-12 | Escape from Innsmouth | CHA2371 | 1997 | Chaosium | Call of Cthulhu (Classic) | |
| Mysterious Places | 165-176 | The Keeper's Companion Vol 1 | CHA2388 | 2000 | Chaosium | Call of Cthulhu (Classic) | |
| Mysterious Places | 67-78 | Keeper's Compendium | CHA2344 | 1993 | Chaosium | Call of Cthulhu (Classic) | |
| The Necronomicon | 101-103 | Call of Cthulhu | CHA2386 | 1999 | Chaosium | Call of Cthulhu (Classic) | |
| The Necronomicon | 112-114 | Call of Cthulhu | CHA23106 | 2005 | Chaosium | Call of Cthulhu (Classic) | |
| The Necronomicon | 69-70 | Call of Cthulhu | CHA2336 | 1992 | Chaosium | Call of Cthulhu (Classic) | |
| Occupations | 66-93 | Investigator's Handbook | CHA23136 | 2015 | Chaosium | Call of Cthulhu (Classic) | |
| On Becoming an Investigator | 6-47 | 1920s Investigator's Companion Vol. II | CHA2346 | 1994 | Chaosium | Call of Cthulhu (Classic) | |
| Orientation | 9-15 | The Compact Arkham Unveiled | CHA2356 | 1995 | Chaosium | Call of Cthulhu (Classic) | |
| Orientation | 6-13 | Arkham Unveiled | CHA2325 | 1990 | Chaosium | Call of Cthulhu (Classic) | |
| A Painted Smile | 42-50 | Tales of the Miskatonic Valley | CHA2334 | 1991 | Chaosium | Call of Cthulhu (Classic) | Arkham |
| Pickman's Student | 169-191 | H.P. Lovecraft's Dreamlands | CHA2394 | 2004 | Chaosium | Call of Cthulhu (Dreamlands) | Boston; Dreamlands |
| Pickman's Student | 55-76 | H.P. Lovecraft's Dreamlands | CHA3302 | 1988 | Chaosium | Call of Cthulhu (Dreamlands) | Boston; Dreamlands |
| Pickman's Student | B:16-38 | H.P. Lovecraft's Dreamlands | CHA2315-X | 1986 | Chaosium | Call of Cthulhu (Dreamlands) | Boston; Dreamlands |
| Pickman's Student | 55-76 | H.P. Lovecraft's Dreamlands | CHA3308 | 1992 | Chaosium | Call of Cthulhu (Dreamlands) | |
| Proof of Life | 63-86 | New Tales of the Miskatonic Valley | MRP0003 | 2008 | Miskatonic River Press | Call of Cthulhu (Classic) | Massachusetts; Mi-Go |
| Proof of Life | 73-100 | New Tales of the Miskatonic Valley | 3009 | 2020 | Stygian Fox | Call of Cthulhu (Classic) | Massachusetts; Mi-Go |
| Providence, Rhode Island | A:18-31 | Spawn of Azathoth | CHA2316-X | 1986 | Chaosium | Call of Cthulhu (Classic) | Providence; May; 1927 |
| Providence, Rhode Island | 24-51 | Spawn of Azathoth | CHA23101 | 2005 | Chaosium | Call of Cthulhu (Classic) | Providence; May; 1927 |
| Reference | 224-261 | Investigator's Handbook | CHA23136 | 2015 | Chaosium | Call of Cthulhu (Classic) | |
| Research & Resources | 18-27 | 1920s Investigator's Companion Vol. I | CHA2343 | 1993 | Chaosium | Call of Cthulhu (Classic) | |
| Return to Dunwich | 2-13 | Return to Dunwich | CHA2330 | 1991 | Chaosium | Call of Cthulhu (Classic) | |
| Return to Dunwich | 140-150 | H.P. Lovecraft's Dunwich | CHA8802 | 2002 | Chaosium | Call of Cthulhu (Classic) | Dunwich; 1929 |
| The Roaring Twenties | 8-17 | 1920s Investigator's Companion Vol. I | CHA2343 | 1993 | Chaosium | Call of Cthulhu (Classic) | |
| The Roaring Twenties | 5-14 | The 1920s Investigator's Companion | CHA2370 | 1997 | Chaosium | Call of Cthulhu (Classic) | |
| The Roaring Twenties | 160-207 | Investigator's Handbook | CHA23136 | 2015 | Chaosium | Call of Cthulhu (Classic) | |
| Sample Fire-Arms and Explosives | | Keeper's Kit | CHA5110 | 1992 | Chaosium | Call of Cthulhu (Classic) | |
| The Sanatorium | 70-88 | Mansions of Madness | CHA2327 | 1990 | Chaosium | Call of Cthulhu (Classic) | New England |
| The Sanatorium | 72-89 | Mansions of Madness | CHA23110 | 2007 | Chaosium | Call of Cthulhu (Classic) | New England |
| Sands of Time | 30-36 | The Fungi From Yuggoth | CHA2305 | 1984 | Chaosium | Call of Cthulhu (Classic) | Egypt; 1929 |
| The Sands of Time | 77-84 | Day of the Beast | CHA2374 | 1998 | Chaosium | Call of Cthulhu (Classic) | Egypt; 1929 |
| Sands of Time | 50-56 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | Egypt; 1929 |
| Secret Cults | 102-120 | The Keeper's Companion Vol 1 | CHA2388 | 2000 | Chaosium | Call of Cthulhu (Classic) | |
| Secret Cults | 35-52 | Keeper's Compendium | CHA2344 | 1993 | Chaosium | Call of Cthulhu (Classic) | |
| Secrets of Dunwich | 22-27 | Return to Dunwich | CHA2330 | 1991 | Chaosium | Call of Cthulhu (Classic) | |
| Secrets of Dunwich | 37-63 | H.P. Lovecraft's Dunwich | CHA8802 | 2002 | Chaosium | Call of Cthulhu (Classic) | |
| Secrets, Mysteries, Legends, and Rumors | 123-125 | Return to Dunwich | CHA2330 | 1991 | Chaosium | Call of Cthulhu (Classic) | |
| The Shadow Over Innsmouth | 15-23 | Escape from Innsmouth | CHA2338 | 1992 | Chaosium | Call of Cthulhu (Classic) | |
| Shadow Over Innsmouth | 15-20 | Escape from Innsmouth | CHA2371 | 1997 | Chaosium | Call of Cthulhu (Classic) | |
| Sinister Seeds | 153-157 | Escape from Innsmouth | CHA2338 | 1992 | Chaosium | Call of Cthulhu (Classic) | |
| Sinister Seeds | 159-164 | Escape from Innsmouth | CHA2371 | 1997 | Chaosium | Call of Cthulhu (Classic) | |
| Sinister Seeds | 124-126 | Cthulhu Casebook | CHA3305 | 1990 | Chaosium | Call of Cthulhu (Classic) | |
| Skills | 94-121 | Investigator's Handbook | CHA23136 | 2015 | Chaosium | Call of Cthulhu (Classic) | |
| Skills for the 1920s | 48-55 | 1920s Investigator's Companion Vol. II | CHA2346 | 1994 | Chaosium | Call of Cthulhu (Classic) | |
| Sourcebook Additions | 130-137 | Call of Cthulhu | CHA2317-H | 1986 | Chaosium | Call of Cthulhu (Classic) | |
| The Spawn of Azathoth | B:53-61 | Spawn of Azathoth | CHA2316-X | 1986 | Chaosium | Call of Cthulhu (Classic) | Tibet; 1927; Azathoth |
| Spells, Feats, and Skills | 225-231 | H.P. Lovecraft's Arkham | CHA8803 | 2003 | Chaosium | Call of Cthulhu (Classic) | |
| St Augustine | B:14-27 | Spawn of Azathoth | CHA2316-X | 1986 | Chaosium | Call of Cthulhu (Classic) | Florida; May; 1927 |
| St Augustine, Florida | 69-93 | Spawn of Azathoth | CHA23101 | 2005 | Chaosium | Call of Cthulhu (Classic) | Florida; May; 1927 |
| The Thing in the Well | 14-18 | The Fungi From Yuggoth | CHA2305 | 1984 | Chaosium | Call of Cthulhu (Classic) | Boston; 1929 |
| The Thing in the Well | 54-59 | Day of the Beast | CHA2374 | 1998 | Chaosium | Call of Cthulhu (Classic) | Boston; 1929 |
| The Thing in the Well | 34-38 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | Boston; 1929 |
| The Tibetan Interior | 135-151 | Spawn of Azathoth | CHA23101 | 2005 | Chaosium | Call of Cthulhu (Classic) | Tibet; 1927; Azathoth |
| The Tools of the Trade | 69-114 | The 1920s Investigator's Companion | CHA2370 | 1997 | Chaosium | Call of Cthulhu (Classic) | |
| The Trail of Tsathoggua | 4-29 | The Compact Trail of Tsathoggua | CHA2362 | 1997 | Chaosium | Call of Cthulhu (Classic) | Greenland; Gnoph-Keh; Formless Spawn of Tsathoggua |
| The Trail of Tsathoggua | 4-21 | The Trail of Tsathoggua | CHA2308 | 1984 | Chaosium | Call of Cthulhu (Classic) | Greenland; Gnoph-Keh; Formless Spawn of Tsathoggua |
| Trail of Yig | 99-109 | Tales of the Miskatonic Valley | CHA2334 | 1991 | Chaosium | Call of Cthulhu (Classic) | Dunwich; Arkham; Yig |
| Transport & Travel | 28-44 | 1920s Investigator's Companion Vol. I | CHA2343 | 1993 | Chaosium | Call of Cthulhu (Classic) | |
| Two New Skills | 13 | Cthulhu Companion | CHA2304 | 1983 | Chaosium | Call of Cthulhu (Classic) | |
| A Typical Dunwich Farm | 16-17 | The Unspeakable Oath | 4 | Dec 1991 | Pagan Publishing | Call of Cthulhu (Classic) | |
| Ulthar and Beyond | B:36-44 | Spawn of Azathoth | CHA2316-X | 1986 | Chaosium | Call of Cthulhu (Classic) | Dreamlands; 1927; Yibb-Tstll |
| Ulthar and Beyond | 106-121 | Spawn of Azathoth | CHA23101 | 2005 | Chaosium | Call of Cthulhu (Classic) | Dreamlands; 1927; Yibb-Tstll |
| Uncle Timothy's Will | 6-15 | Blood Brothers | CHA2329 | 1990 | Chaosium | Call of Cthulhu (Classic) | Vermont; April; 1928; Demon |
| The Underground | 97-117 | Return to Dunwich | CHA2330 | 1991 | Chaosium | Call of Cthulhu (Classic) | |
| The Underground | 119-139 | H.P. Lovecraft's Dunwich | CHA8802 | 2002 | Chaosium | Call of Cthulhu (Classic) | |
| Voice Out of Time | 69-70 | The Fungi From Yuggoth | CHA2305 | 1984 | Chaosium | Call of Cthulhu (Classic) | |
| Voice Out of Time | 89-90 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | |
| Wail of the Witch | 15-24 | Curse of Cthulhu | CHA3306 | 1990 | Chaosium | Call of Cthulhu (Classic) | Massachusetts; 1928 |
| The Wail of the Witch | M1-M7 | Different Worlds | 30 | Sep 1983 | Chaosium | Call of Cthulhu (Classic) | Massachusetts; 1920s |
| Welcome to Arkham | 27-35 | H.P. Lovecraft's Arkham | CHA8803 | 2003 | Chaosium | Call of Cthulhu (Classic) | |
| Welcome to Dunwich | 14-21 | Return to Dunwich | CHA2330 | 1991 | Chaosium | Call of Cthulhu (Classic) | |
| Welcome to Dunwich | 27-36 | H.P. Lovecraft's Dunwich | CHA8802 | 2002 | Chaosium | Call of Cthulhu (Classic) | |
| Welcome to Innsmouth | 13-14 | Escape from Innsmouth | CHA2338 | 1992 | Chaosium | Call of Cthulhu (Classic) | |
| Welcome to Innsmouth | 13-14 | Escape from Innsmouth | CHA2371 | 1997 | Chaosium | Call of Cthulhu (Classic) | |
| Words of Wisdom | 115-125 | The 1920s Investigator's Companion | CHA2370 | 1997 | Chaosium | Call of Cthulhu (Classic) | |
