Obras asociadas
| ▲Título▼ | ▲C▽ | ▲Año▼ | Autor | ▲V▼ | ▲Rel.▼ |
|---|
| Alone Against the Dark |    | 1985 | Matthew J. Costello | — | Media |
| Chapter 4B: SS Gabrielle |    | 1999 | Mike Blum, Charles Engan, Janice Engan | — | Media |
| Appendices (to "Beyond the Mountains of Madness") | | 1999 | Phil Anderson, Marion Anderson, Janice Engan, Charles Engan, John Goodrich, Steve Hill, Mike Lay, Mike Blum | — | Media |
| Thirties London |   | 2010 | Ken Hite | — | Alta |
| The Thirties | | 2008 | Ken Hite | — | Alta |
| Occupations ("Trail of Cthulhu Keeper's Screen & Resource Book") | | 2008 | Adrian Bott, Simon Carryer, Jérôme Huguenin | — | Media |
| NPCs | ? | 2008 | Adrian Bott, Simon Carryer, Jérôme Huguenin | — | Media |
| The London Mythos | | 2010 | Ken Hite | — | Media |
| Campaign Frames | ? | 2008 | Ken Hite | — | Media |
| Backlot Gothic | | 2009 | Robin D. Laws, Jérôme Huguenin | — | Media |
| Abilities | ? | 2008 | Adrian Bott, Simon Carryer, Jérôme Huguenin | — | Media |
| El tesoro de Córdoba |  | 2018 | Gabriel Soriano, Jesús Torres Castro | 6.50 | Media |
| The Fathomless Sleep |  | 2017 | Robin D. Laws, Chris Spivey, Ruth Tillman | — | Media |
| Fatal Frequencies | | 2017 | Robin D. Laws, Chris Spivey, Ruth Tillman | — | Media |
La extraña legión  | | 2018 | Víctor Romero | 7.00 | Media |
| La casa de huéspedes de la calle Arkham | | 2009 | Enrique Camino | — | Media |
| Capitol Colour | | 2017 | Robin D. Laws, Chris Spivey, Ruth Tillman | — | Media |
| A Cable's Length from Shore | | 2018 | Gareth Ryder-Hanrahan | — | Media |
| La Boca del Infierno | | 2022 | Mar Calpena | — | Media |
| La maldición del peñón del Diablo |  | 2020 | Ricard Ibáñez Ortí | — | Media |
| De repente | | 2022 | Andrés Ramos | — | Media |
| The Lost Temple of Yig |  | 2002 | Aaron Rosenberg, Dustin Wright, Brian England | — | Media |
| The Wreck | | 2008 | Gareth Ryder-Hanrahan | 6.00 | Media |
| Whitechapel Black-Letter | | 2010 | Ken Hite | 7.00 | Media |
| White Bokor | | 2009 | Ken Hite, Jérôme Huguenin | — | Media |
