| Publication | Code | Date | Publisher | System (Setting) |
|---|
 Racial Insecurity | WDF22001 | 2013 | WildFire Games | Framewerk (CthulhuTech)
|
 Radio Theatre Murder Mystery | | Sep 2021 | Chaosium | Call of Cthulhu (Classic)
|
 Ragnarok | 45 | 2005 | SFSFW | Chain Reaction
, Guns and Girls
|
| The Raid | | Feb 2020 | Chaosium | Call of Cthulhu (Viking)
|
| The Raid of Area 51 | | Oct 2019 | Chaosium | Call of Cthulhu (Now)
|
| Raid on Black Goat Wood * | | 2010 | Self Published | None
|
 Raiders of R'lyeh * | | 2017 | Self Published | Raiders of R'lyeh
|
| Raiders of R'lyeh Gamemaster's Guide and Complete Rules | | 2017 | Self Published | Raiders of R'lyeh
|
| Raising Up | CHA0089 | 2004 | Chaosium | Call of Cthulhu (Now)
|
| Ramblings of a Twisted Muse | CHA0314 | 2005 | Chaosium | Call of Cthulhu (Classic)
|
 Ramsey Campbell Horrors Pack 1 | CW-RC1 | 2016 | Petersen Games | Cthulhu Wars
|
| Ramsey Campbell Horrors Pack 2 | CW-RC2 | 2016 | Petersen Games | Cthulhu Wars
|
| Randolph Carter College for Anime-Punk | | Aug 2020 | Chaosium | Call of Cthulhu (Classic)
|
 The Rap Sheet | 1 | May 2009 | Pelgrane Press | Trail of Cthulhu
|
| The Rap Sheet | 2 | May 2009 | Pelgrane Press | Trail of Cthulhu
|
| The Rap Sheet | 3 | Aug 2009 | Pelgrane Press | Trail of Cthulhu
|
| Rare Antiquities | | 2016 | Self Published | Lovecraftesque
|
| The Rats in the Walls | | 2013 | Sphinx Speileverlag | The Rats in the Walls
|
| The Ravenar Sagas | CHA0348 | 2008 | Chaosium | Call of Cthulhu (Dark Ages)
|
| Ravenstone Sanitarium | CHA0350 | 2008 | Chaosium | Call of Cthulhu (Classic)
|
| Re:Quest | 25 | Dec 1991 | RolePlaying Games SIG of America Mensa | Call of Cthulhu (Classic)
|
| Read or Die * | | May 2020 | Fantasy Flight Games | Arkham Horror: The Card Game
|
| The Real Leeds | | 2017 | Self Published | Arkham Noir
|
| Real Metal Token Frames | | Sep 2021 | Chaosium | Call of Cthulhu (Classic)
|
| Realm of Cthulhu | | n/a | Self Published | |
| The Realm of Shadows | PAG1006 | 1997 | Pagan Publishing | Call of Cthulhu (Classic)
|
| The Realm of Shadows Player Aid Kit | RSPA | 1997 | Pagan Publishing | Call of Cthulhu (Classic)
|
| Realms of Crawling Chaos | GBD1201 | 2011 | Goblinoid Games | Labyrinth Lord
|
| Realms of Cthulhu | REB20001 | 2010 | Reality Blurs | Savage Worlds (Realms of Cthulhu)
|
 Realms of Cthulhu Bennies * | | 2009 | Reality Blurs | Savage Worlds (Realms of Cthulhu)
|
| Reanimator | | 2018 | Dynamite Entertainment | Reanimator
|
| Recall of Cthulhu | | 2015 | Toy Vault | Recall of Cthulhu
|
 Reckoning of the Dead | | n/a | Self Published | Call of Cthulhu (Atomic)
, Call of Cthulhu (Classic)
, Call of Cthulhu (Gaslight)
, Call of Cthulhu (Now)
, Call of Cthulhu (WWII)
|
| Recurrence | | 2019 | Adreama Games | Machina Arcana
|
| Recurring Nightmares * | MAD21 | 2016 | Fantasy Flight Games | Mansions of Madness
|
| Recursive Echoes * | AHB05 | 2020 | Fantasy Flight Games | Arkham Horror
|
| Red Bat Cthulhu | | 2015 | Peryton Publishing | Red Bat
|
| Red Desire | Cold Murder | | 2008 | Self Published | Yellow Dawn
|
| Red Eye of Azathoth | REAz | 2011 | Kobold Quarterly | Call of Cthulhu (Dark Ages)
, Call of Cthulhu (Strange Aeons: 1587AD)
, Call of Cthulhu (Strange Aeons: 1487AD)
, Call of Cthulhu (Strange Aeons: 1287AD)
, Call of Cthulhu (Wild West)
|
 Red Giant | 1 | 1990 | Folio Works | Call of Cthulhu (Classic)
|
| Red Giant | 2 | 1990 | Folio Works | Call of Cthulhu (Classic)
|
| The Red Mist | | 2016 | Pelgrane Press | Gumshoe (Cthulhu Confidential)
|
| Red Skies | | Nov 2020 | Chaosium | Call of Cthulhu (WWI)
|
| Red Spill in the Sea | | Apr 2021 | Chaosium | Call of Cthulhu (Gaslight)
|
| Redacted Rituals | | 2018 | Self Published | Delta Green
|
| Referee Screen and Reference Sheets | ET005 | 2019 | Raven God Games | Eldritch Tales
|
| Refractions of Glasston | | Dec 2019 | Taylor University Professional Writing | Call of Cthulhu (Classic)
|
| Reign of Cthulhu | ZMG71140 | 2016 | Z-Man Games | Pandemic
|
| Reign of Terror | CHA23149 | 2017 | Chaosium | Call of Cthulhu (Strange Aeons)
|
| Reliquaries Part 1 | | 2013 | Stardust Publications | Dark Aeons
|
| The Rending Box | PELGT21 | 2011 | Pelgrane Press | Trail of Cthulhu
|
| The Repairer of Reputations | PELGT23 | 2011 | Pelgrane Press | Trail of Cthulhu
|
| The Replicant | | 2015 | Stardust Publications | Dark Aeons
|
| Research Assistant Promo Card | | Aug 2010 | Steve Jackson Games | Munchkin
|
| A Resection of Time | CHA2364 | 1997 | Chaosium | Call of Cthulhu (Now)
|
| Residue of the Past | | Jan 2021 | Chaosium | Call of Cthulhu (Now)
|
| Rest Stops | | 1996 | Self Published | Call of Cthulhu (Now)
|
| Restitution | | Dec 2020 | Chaosium | Call of Cthulhu (Now)
|
| Resurrection of the King | | 2016 | Mutant Chiron Games | Ressurection of the King
|
| The Return of Cyris Crane * | SKP | 2017 | Skirmisher Publishing | Call of Cthulhu (Classic)
|
| The Return of Doctor Moreau | | 2006 | Self Published | Call of Cthulhu (Classic)
|
| Return of the Hound | | 2006 | ADP Systems | Call of Cthulhu (Classic)
|
| Return of the Ripper | CHA0339 | 2007 | Chaosium | Call of Cthulhu (Gaslight)
|
| Return to Dunwich | CHA2330 | 1991 | Chaosium | Call of Cthulhu (Classic)
|
| Return to Lovecraft Country * | 0006 | 1997 | Triad Entertainments | Call of Cthulhu (Classic)
|
| Return to the Dunwich Legacy * | AHC28 | 2018 | Fantasy Flight Games | Arkham Horror: The Card Game
|
| Return to the Forgotten Age * | AHC46 | 2020 | Fantasy Flight Games | Arkham Horror: The Card Game
|
| Return to the Island of Dr Moreau | | Aug 2019 | Chaosium | Call of Cthulhu (Classic)
|
| Return to the Monolith | | 1998 | Self Published | Call of Cthulhu (Now)
|
| Return to the Monolith * | | Mar 2018 | Chaosium | Call of Cthulhu (Classic)
|
| Return to the Night of the Zealot * | AHC26 | 2018 | Fantasy Flight Games | Arkham Horror: The Card Game
|
| Return to the Path of Carcosa * | AHC36 | 2019 | Fantasy Flight Games | Arkham Horror: The Card Game
|
| The Reunion | | Jul 2020 | Chaosium | Call of Cthulhu (Classic)
|
| Revealed Cult Secrets Promo Card | | Jun 2016 | Steve Jackson Games | Munchkin
|
| The Revenant | | 2010 | Stardust Publications | Dark Aeons
|
| Revenge of the Old Ones | | 2021 | SchilMil Games | AuZtralia
|
| Reverberations | | 2017 | Arc Dream Publishing | Delta Green
|
| Rhan-Tegoth | JCG032 | 2019 | Just Crunch Games | The Cthulhu Hack
|
| Rich Man, Poor Man | | 2019 | Beyond Belief Games | Black Books
|
| Ride a White Horse | | 2016 | Self Published | Lovecraftesque
|
| Riding the Northbound | GGP1909 | 2019 | Golden Goblin Press | Call of Cthulhu (Classic)
|
| Riot at Red Plank | GGP1803 | 2018 | Golden Goblin Press | Call of Cthulhu (Classic)
|
| Ripples From Carcosa | CHA0312 | 2005 | Chaosium | Call of Cthulhu (Classic)
, Call of Cthulhu (Dark Ages)
, Call of Cthulhu (End Time)
, Call of Cthulhu (Invictus)
|
| Ripples From Carcosa | CHA23134 | 2014 | Chaosium | Call of Cthulhu (Classic)
, Call of Cthulhu (Dark Ages)
, Call of Cthulhu (End Time)
, Call of Cthulhu (Invictus)
|
| Rise of Cthulhu | | 2015 | Self Published | Rise of Cthulhu
|
| The Rise of the Basilisk | | 2021 | Evil Hat Productions | Fate (Fate of Cthulhu)
|
| Rise of the Black Sun | | n/a | Modiphius Entertainment | Call of Cthulhu (Classic)
|
| Rise of the Dead | CHA0355 | 2008 | Chaosium | Call of Cthulhu (Now)
|
| Rise of the Dead - The Raid | CHA0393 | 2010 | Chaosium | Call of Cthulhu (Now)
|
| Rise of the Elders | | 2017 | Self Published | Rise of the Elders
|
| Rise of the Old Ones | | 2021 | Japanime Games | Kamigami Battles
|
| The Rise of the Quiet | | 2021 | Evil Hat Productions | Fate (Fate of Cthulhu)
|
| The Rise of Yig | | 2021 | Evil Hat Productions | Fate (Fate of Cthulhu)
|
| Rising from the Stars | | Nov 2020 | Chaosium | Call of Cthulhu (Classic)
|
| Rites of Cthulhu | | 2018 | Quirky Engine Entertainment | Rites of Cthulhu
|
| Ritual Pursuits * | | 2011 | Pelgrane Press | Trail of Cthulhu
|
| Rituals of the Deep Ones | | 2015 | Necromancers of the Northwest | Pathfinder
|
| Rituals of the Eternal Mother | | n/a | Golden Goblin Press | Call of Cthulhu (Classic)
|
| R'lyeh Rising | DMD-KS05 | 2019 | CMON Limited | Cthulhu: Death May Die
|
| RMS Titanic: The Millionaire's Special | PELGT28 | 2012 | Pelgrane Press | Trail of Cthulhu
|
| The Road Unraveled | | Apr 2020 | Chaosium | Call of Cthulhu (Now)
|
| The Roar in the Dark | | Sep 2021 | Chaosium | Call of Cthulhu (Strange Aeons: Ancient China)
|
| Robo's Mythos CCG Web Page | | n/a | Self Published | Mythos
|
| Role Player Independent | 1 | Dec 1992 | Symbiosis Publishing | Call of Cthulhu (Classic)
|
| Role Player Independent | 2 | Jan 1993 | Symbiosis Publishing | Call of Cthulhu (Classic)
, Call of Cthulhu (Cyberpunk)
|
| Role Player Independent | 3 | Feb 1993 | Symbiosis Publishing | Call of Cthulhu (Classic)
|
| Role Player Independent | 4 | Mar 1993 | Symbiosis Publishing | Call of Cthulhu (Classic)
|
| Role Player Independent | 5 | Apr 1993 | Symbiosis Publishing | Call of Cthulhu (Classic)
|
| Role Player Independent | 7 | Jun 1993 | Symbiosis Publishing | Call of Cthulhu (Classic)
|
| Role Player Independent | 10 | Sep 1993 | Symbiosis Publishing | Call of Cthulhu (Classic)
, Call of Cthulhu (Gaslight)
|
| Role Player Independent | 12 | Nov 1993 | Symbiosis Publishing | Call of Cthulhu (Classic)
|
| Role Player Independent | 13 | Dec 1993 | Symbiosis Publishing | Call of Cthulhu (Classic)
|
| Role Player Independent | 14 | Feb 1994 | Symbiosis Publishing | Call of Cthulhu (Classic)
|
| Roleplay, What, Who, Why and Where? | | n/a | Self Published | Call of Cthulhu (Classic)
, GURPS (Horror)
|
| Roleplayer | 22 | Nov 1990 | Steve Jackson Games | Call of Cthulhu (Classic)
, GURPS
|
| The Romanian Contract | | May 2021 | Chaosium | Call of Cthulhu (Now)
|
| The Room with No Doors | | Dec 2020 | Chaosium | Call of Cthulhu (Classic)
|
 Rosemary's Baby | | n/a | Self Published | Mythos
|
| Rough Magicks | PELGT09 | 2009 | Pelgrane Press | Trail of Cthulhu
|
| Route 666: Three Strikes You're Out | | Apr 2021 | Chaosium | Call of Cthulhu (Atomic)
|
| RPG Review | 1 | Sep 2008 | Self Published | Call of Cthulhu (Delta Green)
|
| RPG Review | 7 | Mar 2009 | Self Published | Advanced Dungeons and Dragons (Ravenloft)
, Call of Cthulhu (Classic)
, Call of Cthulhu (Delta Green)
, Chill
, GURPS
, Kult
, Little Fears
, Trail of Cthulhu
, Vampyre the Masquerade
|
| RPG Review | 13,14 | Dec 2011 | Self Published | Call of Cthulhu (Classic)
|
| RPG Review | 17 | Sep 2012 | Self Published | Call of Cthulhu (Classic)
|
| RPG Review | 18 | Dec 2012 | Self Published | Call of Cthulhu (Classic)
, Call of Cthulhu (Now)
|
| RPG Review | 28.29 | Sep 2015 | Self Published | None
|
| RPG Review | 43 | Jun 2019 | Self Published | Call of Cthulhu (Classic)
, Nephilim
|
| rpg.net | | n/a | Self Published | Call of Cthulhu (Cyberpunk)
|
| Ruins of Golgotha | | 2006 | ADP Systems | Call of Cthulhu (Classic)
|
| Runaways | | n/a | Self Published | Call of Cthulhu (Now)
|
| Rusty Cold | | Apr 2021 | Chaosium | Call of Cthulhu (Strange Aeons)
|