| Title | Pages | Publication | Code | Date | Publisher | System (Setting) |
|---|
 100 Things to Find on Someone in the Wild West | 1-3 |  100 Things to Find on Someone in the Wild West | | 2019 | Pink Dice Bag Publishing | Call of Cthulhu (Darker Trails) | |
 Adios A-Mi-Go! | 4-32 |  Adios A-Mi-Go! | 9007 | 1998 | Pinnacle Entertainment Group | Call of Cthulhu (Darker Trails) | |
 Adios A-Mi-Go! The Adventure | 33-60 | Adios A-Mi-Go! | 9007 | 1998 | Pinnacle Entertainment Group | Call of Cthulhu (Darker Trails) | Colorado |
| Ahiga and the Machine | 165-176 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| And Madness Shall Rise to Devour the West | 69-104 | Red Eye of Azathoth | REAz | 2011 | Kobold Quarterly | Call of Cthulhu (Darker Trails) | Arizona; 1887 |
| Beneath the Burning Sun | 85-128 | Shadows Over Stillwater | CHA23156 | 2019 | Chaosium | Call of Cthulhu (Darker Trails) | New Mexico; Star Spawn of Cthulhu |
| The Black Mine of Teihiihan | 1-13 | The Black Mine of Teihiihan | | May 2019 | Self Published | Call of Cthulhu (Darker Trails) | Kansas; July; 1883 |
| Blight at Gold Bluff | 7-31 | Blight at Gold Bluff | | Apr 2023 | Chaosium | Call of Cthulhu (Darker Trails) | California; 1883 |
 A Brief History of Cattle Drives | 7-10 | Get Along, Little Dogies | | Jun 2022 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Calamity on Drywater Canyon | | Calamity on Drywater Canyon | | Sep 2025 | Chaosium | Call of Cthulhu (Darker Trails) | Texas; 1870s |
| Campaign Overview | 3-9 | The Shadow Over the Sierra Madre | | Oct 2024 | Chaosium | Call of Cthulhu (Darker Trails) | Texas |
| Cemetery, Nevada | 221-250 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Characters and Monsters | 95-114 | Get Along, Little Dogies | | Jun 2022 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Children of the Mountain | 105-116 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Chimes in the Dark | 4-12 | Chimes in the Dark | | Dec 2022 | Chaosium | Call of Cthulhu (Darker Trails) | California; 1886; Great Old One |
| The Colour of Cattle | 5-44 | The Colour of Cattle | | Jun 2023 | Chaosium | Call of Cthulhu (Darker Trails) | Colour Out of Space |
| Conversion Notes | 61-66 | Adios A-Mi-Go! | 9007 | 1998 | Pinnacle Entertainment Group | Call of Cthulhu (Darker Trails) | |
| Cooter Wainwright | |  Hypergraphia | 2 | Aug 2019 | Gladius Games | Call of Cthulhu (Darker Trails) | |
| Creating Your Cattle Drive | 11-26 | Get Along, Little Dogies | | Jun 2022 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Cursed to Life | | Cursed to Life | | May 2024 | Chaosium | Call of Cthulhu (Darker Trails) | Arkansas; May; 1876 |
| The Dead Man's Hand | 177-188 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Designing Old West Adventures | 175-178 | Down Darker Trails | CHA23151 | 2017 | Chaosium | Call of Cthulhu (Darker Trails) | |
| The Devil's Roundup | 151-156 | Shadows Over Stillwater | CHA23156 | 2019 | Chaosium | Call of Cthulhu (Darker Trails) | New Mexico |
 Down Darker Trails | | Big A** Book of Hooks | | Jun 2025 | Chaosium | Call of Cthulhu (Darker Trails) | |
| DRAW !!! -- Wild West Showdowns in Call of Cthulhu (Eamon Honan) CALL OF | | Chaosium Digest | v27n06 | Jan 1999 | Chaosium | Call of Cthulhu (Darker Trails) | |
| El Abismo Debajo | 34-47 | The Shadow Over the Sierra Madre | | Oct 2024 | Chaosium | Call of Cthulhu (Darker Trails) | Texas |
| Equipment and Weapons | 33-44 | Down Darker Trails | CHA23151 | 2017 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Fallen From the Furthest Star | 7-56 | Fallen From the Furthest Star | | Apr 2026 | Chaosium | Call of Cthulhu (Darker Trails) | Washington; August; 1877 |
| Fargo 1884 | | Fargo 1884 | | Sep 2024 | Chaosium | Call of Cthulhu (Darker Trails) | North Dakota; 1884 |
| The Festering Locusts of Fenmore | 1-14 | The Festering Locusts of Fenmore | | Jun 2021 | Self Published | Call of Cthulhu (Darker Trails), GURPS (Horror) | New York State; 1758 |
| Fever: Death Toll | 5-60 | Fever: Death Toll | | Jul 2019 | Chaosium | Call of Cthulhu (Darker Trails) | Nevada; August; 1849 |
| The Golden Scorpion | 52-90 |  Worlds of Cthulhu | 3 | Jun 2005 | Pegasus Press | Call of Cthulhu (Darker Trails) | |
| The Good, The Bad, and the Utterly Insane | 5-21 | Worlds of Cthulhu | 2 | Feb 2005 | Pegasus Press | Call of Cthulhu (Darker Trails) | |
| The Historical West | 53-134 | Down Darker Trails | CHA23151 | 2017 | Chaosium | Call of Cthulhu (Darker Trails) | |
| The Horror on Two Forks Trail | 1-6 | The Horror on Two Forks Trail | | 2005 | Self Published | Call of Cthulhu (Darker Trails) | California; 1860s |
| The Horror On Two Forks Trail | |  RPG Archive | | | Self Published | Call of Cthulhu (Darker Trails) | California; 1860s |
| The Horror On Two Forks Trail, Part 1 | | Chaosium Digest | v34n01 | Jun 2001 | Chaosium | Call of Cthulhu (Darker Trails) | California; 1860s |
| The Horror On Two Forks Trail, Part 2 | | Chaosium Digest | v34n02 | Jun 2001 | Chaosium | Call of Cthulhu (Darker Trails) | California; 1860s |
| The Hunt for Kid Richter | 22-26 | Worlds of Cthulhu | 2 | Feb 2005 | Pegasus Press | Call of Cthulhu (Darker Trails) | |
| In Waters Black The Lost Ones Sleep | 23-48 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Incident at Dagon Wells | 149-164 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Jedediah Smith and the Undying Chinaman | 189-204 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Keep Them Dogies Rollin' | 59-94 | Get Along, Little Dogies | | Jun 2022 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Lazarus in Spades | 9-36 | Shadows Over Stillwater | CHA23156 | 2019 | Chaosium | Call of Cthulhu (Darker Trails) | New Mexico; Serpentman |
| Life on the Trail | 27-30 | Get Along, Little Dogies | | Jun 2022 | Chaosium | Call of Cthulhu (Darker Trails) | |
| The Long Road Home | 9-22 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Lost Worlds of the Old West | 163-174 | Down Darker Trails | CHA23151 | 2017 | Chaosium | Call of Cthulhu (Darker Trails) | |
| A Lowdown Dirty Owlhoot | | Terror of Octobernomicon | GGP2201 | 2022 | Golden Goblin Press | Call of Cthulhu (Darker Trails) | Colorado |
| Magic of the Old West | | Magic of the Old West | | 2021 | Skirmisher Publishing | Call of Cthulhu (Darker Trails) | |
| A Murder at Heck's Peak | | A Murder at Heck's Peak | | Jul 2022 | Chaosium | Call of Cthulhu (Darker Trails) | Colorado; Summer; 1877 |
| A Night at Darkbank | 7-15 | A Night at Darkbank | | Apr 2022 | Chaosium | Call of Cthulhu (Darker Trails) | New Mexico; 1879; Spring |
| Night of the Boot Hill Bandits | 5-20 | Night of the Kachina | CHA0332 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | New Mexico; 1851; Ghoul |
| Night of the Kachina | 25-38 | Night of the Kachina | CHA0332 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | New Mexico; 1851; Fire Vampire |
| The Night of the White Buffalo | 43-59 | Night of the Kachina | CHA0332 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | New Mexico; 1851 |
| An Occurrence at Como Bluff | | An Occurrence at Como Bluff | | Apr 2022 | Chaosium | Call of Cthulhu (Darker Trails) | Wyoming; 1878 |
| Old West Investigators | 9-32 | Down Darker Trails | CHA23151 | 2017 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Optional Rules for the Old West | 45-52 | Down Darker Trails | CHA23151 | 2017 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Pawheton | 179-192 | Down Darker Trails | CHA23151 | 2017 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Pilgrim's Hope | | Pilgrim's Hope | | Jan 2022 | Chaosium | Call of Cthulhu (Darker Trails) | Illinois; 1885 |
| The Posse | | The Posse | | Dec 2020 | Chaosium | Call of Cthulhu (Darker Trails) | Utah; 1875; Summer |
| The Problem with Cattle Drives | 31-58 | Get Along, Little Dogies | | Jun 2022 | Chaosium | Call of Cthulhu (Darker Trails) | |
| The Rider of the Dark | 251-? | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| The Road to Mexico | 18-32 | The Shadow Over the Sierra Madre | | Oct 2024 | Chaosium | Call of Cthulhu (Darker Trails) | Texas |
| San Rafael | 193-208 | Down Darker Trails | CHA23151 | 2017 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Scanlon's Daughter | 223-241 | Down Darker Trails | CHA23151 | 2017 | Chaosium | Call of Cthulhu (Darker Trails) | Texas; 1870; Yig |
| Setting Cthulhu in the Wild West | | Chaosium Digest | v02n03 | Apr 1993 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Shadow of the Alamo | 9-16 | The Shadow Over the Sierra Madre | | Oct 2024 | Chaosium | Call of Cthulhu (Darker Trails) | Texas |
| Shattered Earth, Poison Sky | 63-84 | Shadows Over Stillwater | CHA23156 | 2019 | Chaosium | Call of Cthulhu (Darker Trails) | New Mexico; Serpentman |
| Six Characters in Search of an Archive | | Chaosium Digest | v26n12 | Dec 1998 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Snake Oil | 205-220 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Something From Down There | 209-222 | Down Darker Trails | CHA23151 | 2017 | Chaosium | Call of Cthulhu (Darker Trails) | Texas; Formless Spawn of Tsathoggua |
| Something to Hold the Door Closed | 77-88 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| A Specific Lurking Peril | 22-39 | Duets in Darkness | | Feb 2025 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Spirit of the Mountain | | Fenix | 2016.6 | 2016 | Askfagein | Call of Cthulhu (Darker Trails) | Mountain; 1920s |
| St Cecilia's Blasphemous Bordello | 1-18 | St Cecilia's Blasphemous Bordello | | Dec 2021 | Self Published | Call of Cthulhu (Darker Trails), GURPS | New Mexico |
| Stonegarden Arizona | 129-150 | Shadows Over Stillwater | CHA23156 | 2019 | Chaosium | Call of Cthulhu (Darker Trails) | Arizona; Star Vampire; Rat Thing |
| The Stranger | | The Blasphemous Tome | 8 | Dec 2021 | Self Published | Call of Cthulhu (Darker Trails) | |
| Sundown | 2-15 | Sundown | | 2011 | Imaginary Empire | Call of Cthulhu (Darker Trails) | Arizona; 1880 |
| Sunset on Sandy Gulch | 51-67 | Worlds of Cthulhu | 6 | Jan 2009 | Pegasus Press | Call of Cthulhu (Darker Trails) | Sand Dweller |
| The Supernatural West | 135-162 | Down Darker Trails | CHA23151 | 2017 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Terror From Middle Island | 89-104 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| There's Gold in Them Thar Hills | | There's Gold in Them Thar Hills | | Dec 2021 | Chaosium | Call of Cthulhu (Darker Trails) | Canada; 1897 |
| They Who Dwell Below | 117-132 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Treasure for the Watcher | | Treasure for the Watcher | | Sep 2021 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Trouble on Knifecut Mesa | 37-62 | Shadows Over Stillwater | CHA23156 | 2019 | Chaosium | Call of Cthulhu (Darker Trails) | New Mexico; Serpentman |
| Wagon Train For the Stars | 133-148 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Where Men Had Seldom Trod | 49-76 | Frontier Cthulhu | CHA6041 | 2007 | Chaosium | Call of Cthulhu (Darker Trails) | |
| Wild West NPC Generator | 1-10 | Wild West NPC Generator | | 2021 | Pink Dice Bag Publishing | Call of Cthulhu (Darker Trails) | |
| The Wolves of Wheeling | 7-62 | The Wolves of Wheeling | | Dec 2024 | Chaosium | Call of Cthulhu (Darker Trails) | West Virginia; December; 1878 |
| Yig's Teeth | | Yig's Teeth | | Dec 2020 | Chaosium | Call of Cthulhu (Darker Trails) | |
