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TitlePagesPublicationCodeDatePublisherSystem (Setting)
Card R'leyh Rising - Spectral HuntersAdventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card R'lyehLocation (U)Cards Cthulhu RisingCAO1302-11996 ChaosiumMythos
Boardgame R'lyehBoardgame R'lyeh2019 Dan Verssen GamesWarfighter
Card The R'lyeh ConspiracyConspiracy (F)Cards Conspiracies of Chaos2006 Fantasy Flight GamesCall of Cthulhu CCG
Card The R'lyeh ConspiracyConspiracy (F)Cards Conspiracies of ChaosCT14e2011 Fantasy Flight GamesCall of Cthulhu LCG
Card R'lyeh Disk Left FragmentArtifact (U)Cards Cthulhu RisingCAO1302-11996 ChaosiumMythos
Card R'lyeh Disk Right FragmentArtifact (U)Cards Cthulhu RisingCAO1302-11996 ChaosiumMythos
Card R'lyeh Disk Top FragmentArtifact (U)Cards Cthulhu RisingCAO1302-11996 ChaosiumMythos
Boardgame R'lyeh RisesBoardgame R'lyeh RisesDMD-KS05B2024 CMON LimitedCthulhu Cthulhu: Death May Die (Fear of the Unknown)
Boardgame R'lyeh RisingBoardgame R'lyeh RisingDMD-KS052019 CMON LimitedCthulhu: Death May Die
Card R'lyeh Rising - Cthulhu RisenAdventure (F)Website House of Tindalos Self PublishedMythos
Card R'lyeh Rising - Cthulhu RisenAdventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card R'lyeh Rising - Spectral HuntersAdventure (F)Website House of Tindalos Self PublishedMythos
Card R'lyeh Rising - The Silver Twilight LodgeAdventure (F)Website House of Tindalos Self PublishedMythos
Card R'lyeh Rising - The Silver Twilight LodgeAdventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card R'lyeh Text (Atlantean)Tome (C)Cards Cthulhu RisingCAO1302-11996 ChaosiumMythos
Card R'lyeh Text (Chinese)Tome (R)Cards Legends of the NecronomiconCAO1303-11996 ChaosiumMythos
Card R'lyeh Text, The Breath of DagonSupport (R)Cards Masks of Nyarlathotep2005 Fantasy Flight GamesCall of Cthulhu CCG
Card R'lyeh, City of DreamsSupport (U)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Novelty The R'lyehan PalimpsestseZine Chaosium Digestv12n10Jan 1996 ChaosiumNone
Boardgame R'lyehian Seizures PromoBoardgame R'lyehian Seizures Promo2023 CMON LimitedCthulhu: Death May Die (Fear of the Unknown)
Scenario R. L. McSterlingthong and Nikola Tesla vs. the Daughter of Skull-Face1-5PDF R. L. McSterlingthong and Nikola Tesla vs. the Daughter of Skull-FaceNL0632012 NUELOW GamesROLF!2012
Background Rabat15-29Softback Mysteries of MoroccoCHA03062004 ChaosiumCall of Cthulhu (Classic)
Background Rabat15-30Softback Secrets of MoroccoCHA231052008 ChaosiumCall of Cthulhu (Classic)
Card Rabbit's FootSupport (F)Cards The Spawn of the SleeperCT192009 Fantasy Flight GamesCall of Cthulhu LCG
Card Rabid MiceMonster (F)Cards Rosemary's Baby Self PublishedMythos
Card RabiesEvent (F)Cards Rosemary's Baby Self PublishedMythos
Card RadarArtifact (F)Cards Scooby Doo Set 2Mar 1999 Self PublishedMythos
Card Radiance of AlsophocusSpell (C)Cards Cthulhu RisingCAO1302-11996 ChaosiumMythos
Card Radiation SuitArtifact (R)Cards New AeonCAO1311-11997 ChaosiumMythos
Card Radical TherapyEvent (C)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Scenario Radio Killed Verna StarrPDF Radio Killed Verna StarrJul 2022 ChaosiumCall of Cthulhu (Classic)Pennsylvania; August; 1925
Card Radio NetworkSupport (R)Cards Eldritch Edition2005 Fantasy Flight GamesCall of Cthulhu CCG
Scenario Radio Silence2014Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)
Scenario Radio Theatre Murder MysteryPDF Radio Theatre Murder MysterySep 2021 ChaosiumCall of Cthulhu (Classic)Boston; July; 1926
Background RAF Hobwood Stourbridge, West Midlands28-29Magazine The Black Seal2Mar 2003 Brichester University PressCall of Cthulhu (Now)
Background Raggedy Clothes ad Worn Out Shoes: A Look at the American Hobo36-41Softback The Island of IgnoranceGGP13012013 Golden Goblin PressCall of Cthulhu (Classic)
Scenario Ragnarok88-105Hardback Wrath of the GodsEW022015 Fantasy Flight GamesThe End of the World
Scenario The Raid4-34Softback Rise of the Dead - The RaidCHA03932010 ChaosiumCall of Cthulhu (Now)March; Zombie
Scenario The Raid of Area 51PDF The Raid of Area 51Oct 2019 ChaosiumCall of Cthulhu (Now)
Scenario Raid on Alpha Base1-19PDF Raid on Alpha BaseJun 2023 Self PublishedAchtung! Cthulhu
Scenario Raid on Black Goat Wood1PDF Raid on Black Goat Wood2010 Self PublishedNoneFantasy World
Card Raid!Event (F)Cards For the Greater GoodCT642015 Fantasy Flight GamesCall of Cthulhu LCG
Background Railway CoachesB:16-17Boxed Call of CthulhuCHA2301-X1983 ChaosiumCall of Cthulhu (Classic)
Background Railway Coaches95Hardback Call of CthulhuCHA2317-H1986 ChaosiumCall of Cthulhu (Classic)
Background Railway CoachesC:16-17Boxed Call of CthulhuCHA2009-X1981 ChaosiumCall of Cthulhu (Classic)
Background Railways41-42Softback Green and Pleasant LandCHA23201987 ChaosiumCall of Cthulhu (Classic)
Card Rain of FishEvent (U)Cards DreamlandsCAO1307-11997 ChaosiumMythos
Card Rains in AprilEvent (R)Cards Forgotten Cities2005 Fantasy Flight GamesCall of Cthulhu CCG
Card A Rainy British SummerAdventure (F)Website House of Tindalos Self PublishedMythos
Card Raising of the Great Old OnesConspiracy (F)Cards The Sleeper BelowCT632014 Fantasy Flight GamesCall of Cthulhu LCG
Rules The RakeOct 2014Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Card Raking the PotEvent (F)Cards Journey to Unknown KadathCT312010 Fantasy Flight GamesCall of Cthulhu LCG
Card Rambling ManCharacter (U)Cards Masks of Nyarlathotep2005 Fantasy Flight GamesCall of Cthulhu CCG
Background Ramblings of a Disorganized Mind22-24Magazine Valkyrie4Dec 1994 Partizan PressCall of Cthulhu (Classic)
Card Rampaging ChthonianCharacter (R)Cards Eldritch Edition2005 Fantasy Flight GamesCall of Cthulhu CCG
Card Rampaging Dark YoungCharacter (R)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Rampaging Dark YoungCharacter (F)Cards Secrets of ArkhamCT322010 Fantasy Flight GamesCall of Cthulhu LCG
Boardgame Ramsey Campbell Horrors Pack 1Boardgame Ramsey Campbell Horrors Pack 1CW-RC12016 Petersen GamesCthulhu Wars
Boardgame Ramsey Campbell Horrors Pack 2Boardgame Ramsey Campbell Horrors Pack 2CW-RC22016 Petersen GamesCthulhu Wars
Card Randolph CarterAlly (C)Cards DreamlandsCAO1307-11997 ChaosiumMythos
Card Randolph CarterAlly (R)Cards LimitedCAO1300-11996 ChaosiumMythos
Card Randolph CarterCharacter (R)Cards Forgotten Cities2005 Fantasy Flight GamesCall of Cthulhu CCG
Card Randolph CarterCharacter (F)Cards Search for the Silver KeyCT292009 Fantasy Flight GamesCall of Cthulhu LCG
Scenario Randolph Carter College for Anime-PunkPDF Randolph Carter College for Anime-PunkAug 2020 ChaosiumCall of Cthulhu (Classic)
Background The Randolph Pierce Foundation52-66Magazine The Unspeakable Oath6Aug 1992 Pagan PublishingCall of Cthulhu (Classic)
Rules Random Dream Generator39-40Fanzine Serendipity's Circle8Sum 1996 Self PublishedNone
Rules Random Tables32-39Softback R'lyehwatch2023 Third Chair GamesR'lyehwatch
Card RansackedEvent (F)Cards Scooby Doo Set 2Mar 1999 Self PublishedMythos
Fiction Rapture in Black178-188Softback The Innsmouth CycleCHA60172006 ChaosiumCall of Cthulhu (Classic)
Background Rare and Unusual: Paranormal Artefacts at the British Museum50-54Magazine The Black Seal3Nov 2003 Brichester University PressCall of Cthulhu (Now)
Scenario Rare Antiquities1-3PDF Rare Antiquities2016 Self PublishedLovecraftesqueEngland; 2002; December
Card Rare Book ResearcherCharacter (C)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Rules The Rat King, avatar of MordiggianOct 2021Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Background Rat-ThingseZine Ken Writes About Stuffv2n10Dec 2014 Pelgrane PressTrail of Cthulhu
Background Rat-Things and Worse Horrors41-49Magazine The Arkham Gazette3Oct 2015 Sentinel Hill PressCall of Cthulhu (Classic)
Rules Rating the Adventures, Part 1eZine Chaosium Digestv22n07Nov 1997 ChaosiumMythos
Rules Rating the Adventures, Part 2eZine Chaosium Digestv22n08Nov 1997 ChaosiumMythos
Rules Rating the Adventures, Part 3eZine Chaosium Digestv22n09Nov 1997 ChaosiumMythos
Card The Rats in the WallsAdventure (F)Website House of Tindalos Self PublishedMythos
Card The Rats in the WallsAdventure (F)Website House of Tindalos Self PublishedMythos
Card The Rats in the WallsAdventure (F)Website House of Tindalos Self PublishedMythos
Boardgame The Rats in the WallsBoardgame The Rats in the Walls2013 Sphinx SpeileverlagThe Rats in the Walls
Card Rats in the WallsAdventure (F)eZine Chaosium Digestv22n12Jan 1998 ChaosiumMythos
Card The Rats In The Walls (1)Adventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card The Rats In The Walls (2)Adventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card The Rats In The Walls (3)Adventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card Ravager from the DeepCharacter (C)Cards Unspeakable Tales2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Ravager from the DeepCharacter (F)Cards Call of Cthulhu The Card GameCT182008 Fantasy Flight GamesCall of Cthulhu LCG
Scenario Raven at Birmingham's29Magazine The Unspeakable Oath16/17Mar 2001 Pagan PublishingCall of Cthulhu (Classic)
Rules The Ravenar Saga Rediscovered83-85Softback The Ravenar SagasCHA03482008 ChaosiumCall of Cthulhu (Dark Ages)
Background The Ravenar Sagas1-12Softback The Ravenar SagasCHA03482008 ChaosiumCall of Cthulhu (Dark Ages)
Card Ravening MadnessSpell (R)Cards DreamlandsCAO1307-11997 ChaosiumMythos
Card Ravenous Hunting HorrorCharacter (U)Cards Forbidden Relics2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Ravenous PiranhasCharacter (F)Cards Murmurs of EvilCT352010 Fantasy Flight GamesCall of Cthulhu LCG
Scenario Ravishing Beauty3-12PDF Ravishing BeautyNov 2021 ChaosiumCall of Cthulhu (Invictus)Italy
Card Ray StuckeyAlly (F)Cards UnlimitedCAO1306-11997 ChaosiumMythos
Card Raymond LegrasseAlly (C)Cards LimitedCAO1300-11996 ChaosiumMythos
Card The Rays of DawnSupport (F)Cards Twilight HorrorCT262009 Fantasy Flight GamesCall of Cthulhu LCG
Scenario Re-Animator 2508PDF Re-Animator 2508Feb 2024 ChaosiumCall of Cthulhu (Deep Space)Solar System; 2508
Card Re-ExaminationEvent (R)Website Serena's Dojo1999 Self PublishedMythos
Scenario Reach for the Powder2023Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)Texas; Deep One
Boardgame Read or DieBoardgame Read or DieMay 2020 Fantasy Flight GamesArkham Horror: The Card Game
Scenario The Reading of a WillPDF The Reading of a WillMar 2022 ChaosiumCall of Cthulhu (Classic)England; 1923
Rules Reading on the Road587-598Hardback The Masks of Nyarlathotep Companion (Limited)60-MONC-082016 Sixtystone PressCall of Cthulhu (Classic)
Rules Reading on the Road458-468Softback The Masks of Nyarlathotep Companion (Unlimited)60-MONC-03 (?)2016 Sixtystone PressCall of Cthulhu (Classic)
Card Reading the Star SignsEvent (F)Cards Seekers of KnowledgeCT592012 Fantasy Flight GamesCall of Cthulhu LCG
Scenario A Real Bargain!2023Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)Massachusetts
Fiction Real Gone167-181PDF Eldritch ChromeCHA60522013 ChaosiumCall of Cthulhu (Cyberpunk)
Background The Real History of Los Angeles8-30Softback Secrets of Los AngelesCHA231112007 ChaosiumCall of Cthulhu (Classic)
Rules The Real Imaginary FriendOct 2022Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Boardgame The Real LeedsBoardgame The Real Leeds2017 Self PublishedArkham Noir
Novelty Real Metal Token FramesPDF Real Metal Token FramesSep 2021 ChaosiumCall of Cthulhu (Classic)
Rules Real Occult Books for CoCeZine Chaosium Digestv05n10Feb 1994 ChaosiumCall of Cthulhu (Classic)
Rules Real-Time Combat81-94Softback Cthulhu Live: Player's Companion00062000 Fantasy Flight GamesCall of Cthulhu (Classic)
Rules Reality Bleeds89-93Softback License to SummonCB712052012 Cubicle 7Call of Cthulhu (Laundry)
Card Reality of the Necronomicon?Adventure (F)Website House of Tindalos Self PublishedMythos
Card Reality Of The Necronomicon?Adventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card ReallocateEvent (F)Cards Denizens of the UnderworldCT622014 Fantasy Flight GamesCall of Cthulhu LCG
Boardgame Realm of CthulhuBoardgame Realm of Cthulhu Self PublishedTalisman
Card Realm of Ice and DeathConspiracy (F)Cards The Mountains of MadnessCT162008 Fantasy Flight GamesCall of Cthulhu LCG
Card Realms Beyond ReasonSupport (U)Cards Unspeakable Tales2004 Fantasy Flight GamesCall of Cthulhu CCG
Background The Realms of the Mythos163-198Softback Eldritch SkiesBPI75002012 Battlefield PressEldritch Skies
Unknown The ReanimatedeZine What Lies Beneath1Aug 2002 Self PublishedCall of Cthulhu (Classic)
Scenario Reanimator16-28Softback The Dreaming PrinceCHA03992011 ChaosiumCall of Cthulhu (Now)New York State
Card The ReanimatorAdventure (F)Website House of Tindalos Self PublishedMythos
Boardgame ReanimatorBoardgame Reanimator2018 Dynamite EntertainmentReanimator
Card The ReanimatorAdventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card The ReanimatorAdventure (F)eZine Chaosium Digestv22n12Jan 1998 ChaosiumMythos
Scenario The Reanimator Returns1-26PDF The Reanimator ReturnsSep 2023 ChaosiumCall of Cthulhu (Classic)1933; June
Card The ReapingEvent (C)Cards Forbidden Relics2004 Fantasy Flight GamesCall of Cthulhu CCG
Rules Reasons PCs LeaveMay 2020Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Card Reawakened Elder ThingCharacter (F)Cards The Mountains of MadnessCT162008 Fantasy Flight GamesCall of Cthulhu LCG
Rules Rebooting Campaigns With a Modern Sensibility31-32Magazine Bayt al Azif1Oct 2018 Bayt al Azif IncCall of Cthulhu (Classic)
Scenario Reborn to Die38-62Softback Toying With HumansCHA03172005 ChaosiumCall of Cthulhu (Now)Arkham; May; 2005
Card RecallSpell (C)Website Serena's Dojo1999 Self PublishedMythos
Boardgame Recall of CthulhuBoardgame Recall of Cthulhu2015 Toy VaultRecall of Cthulhu
Scenario Recess2023Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)Kansas; September; 1994
Scenario Recipe for ObsessionPDF Recipe for ObsessionSep 2023 ChaosiumCall of Cthulhu (Classic)Arkham; 1920s
Card Reckless AssaultEvent (F)Cards Aspirations of AscensionCT432011 Fantasy Flight GamesCall of Cthulhu LCG
Card Reckless CultistBoardgame Fight or Flight Promos2021 CMON LimitedCthulhu: Death May Die
Card Reckless Elder ThingCharacter (F)Cards The CacophonyCT392010 Fantasy Flight GamesCall of Cthulhu LCG
Card Reclaimed ServantCharacter (F)Cards The Breathing JungleCT492011 Fantasy Flight GamesCall of Cthulhu LCG
Scenario Reclamation ProjectPDF Dark Visitationscr52032022 Cthulhu RebornCthulhu Eternal
Scenario The Recluse146-167Softback Devil's SwampNCG-DS-HC-12018 New Comet GamesCall of Cthulhu (Classic)Massachusetts; 1920s
Card Reclusive ResearcherCharacter (C)Cards Unspeakable Tales2004 Fantasy Flight GamesCall of Cthulhu CCG
Rules Recommended Reading39Magazine White Dwarf72Dec 1985 Games WorkshopCall of Cthulhu (Classic)
Card Recovered IcebreakerEvent (F)Cards Never NightCT502011 Fantasy Flight GamesCall of Cthulhu LCG
Rules Recovered Relics1-12PDF Recovered Relics2009 Self PublishedYellow Dawn
Rules Recovering Sanity82Softback Cthulhu InvictusCHA231152009 ChaosiumCall of Cthulhu (Classic)
Background Recreation102-106Softback Secrets of San FranciscoCHA231082006 ChaosiumCall of Cthulhu (Classic)
Background Recreation66-69Softback The London GuidebookCHA23471996 ChaosiumCall of Cthulhu (Classic)
Card RecruitSupport (U)Cards Forgotten Cities2005 Fantasy Flight GamesCall of Cthulhu CCG
Card Recruiter for the LodgeCharacter (F)Cards The Order of the Silver TwilightCT332010 Fantasy Flight GamesCall of Cthulhu LCG
Boardgame RecurrenceBoardgame Recurrence2019 Adreama GamesMachina Arcana
Boardgame Recurring NightmaresBoardgame Recurring NightmaresMAD212016 Fantasy Flight GamesMansions of Madness
Boardgame Recursive EchoesBoardgame Recursive EchoesAHB052020 Fantasy Flight GamesArkham Horror
Fiction Red Carpet Affair16-17Softback Damnation ViewWDF233002009 WildFire GamesCthulhuTech
Rules Red Carpet Ready53-61Magazine Protodimension21Aut 2014 Kinstaff MediaCall of Cthulhu (Now)
Scenario Red Desire | Cold Murder1-18Softback Red Desire | Cold Murder2008 Self PublishedYellow DawnJapan
Card Red Gate MoundSupport (U)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Red HeronAlly (F)Cards Scooby Doo Set 2Mar 1999 Self PublishedMythos
Card Red HookLocation (F)Cards UnlimitedCAO1306-11997 ChaosiumMythos
Scenario The Red HouseSep 2019Website Reckoning of the Dead Self PublishedCall of Cthulhu (Now)Washington
Scenario Red in Tooth and ClawPDF Red in Tooth and Clawcr5403Nov 2023 Cthulhu RebornCthulhu EternalAustralia; September; 1914
Scenario RED MARKET2016Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)Ohio
Scenario The Red Mist4-24Softback The Red Mist2016 Pelgrane PressCthulhu ConfidentialNew York; 1937
Card Red Nail HexSupport (U)Cards Forgotten Cities2005 Fantasy Flight GamesCall of Cthulhu CCG
Rules The Red Nun of St Frideswide's PrioryOct 2020Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Fiction The Red Offering1-5Softback The Xothic Legend CycleCHA60131997 ChaosiumNone
Scenario Red Rover, Red RoverFanzine Serendipity's Circle17 Self PublishedCall of Cthulhu (Classic)
Scenario Red Silk Ghost53-60PDF Templa IlluminatusJan 2024 ChaosiumCall of Cthulhu (Classic)Asia
Scenario Red SkiesPDF Red SkiesNov 2020 ChaosiumCall of Cthulhu (WWI)
Background The Red Skull Cult70-81Softback Cultists Under the BedCB712062013 Cubicle 7Call of Cthulhu (Laundry)
Scenario Red Spill in the SeaPDF Red Spill in the SeaApr 2021 ChaosiumCall of Cthulhu (Gaslight)Egypt
Card Red TapeSupport (F)Cards For the Greater GoodCT642015 Fantasy Flight GamesCall of Cthulhu LCG
Scenario Red Thoughts94-143Hardback God's TeethAPU81232023 Arc Dream PublishingDelta Green2016
Card The Red ThresholdEvent (F)Cards Into TartarusCT512011 Fantasy Flight GamesCall of Cthulhu LCG
Boardgame Red Tide RisingBoardgame Red Tide Rising2021 Fantasy Flight GamesArkham Horror: The Card Game
Scenario Red Valley31-47Softback Sun Spots42017 Weird 8Call of Cthulhu (Classic)Massachusetts; 1926
Scenario A Red, Red RosePDF A Red, Red RoseAug 2022 ChaosiumCall of Cthulhu (Now)Scotland; 2023
Card The Red-Gloved ManCharacter (F)Cards Whispers in the DarkCT342010 Fantasy Flight GamesCall of Cthulhu LCG
Rules Redacted Rituals1-5PDF Redacted Rituals2018 Self PublishedDelta Green
Rules Redcap14-15PDF Grimoire of Terror IIMUH0010351Oct 2023 Modiphius EntertainmentAchtung! Cthulhu
Scenario Redial Call2022Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)
Rules Redmalkin - The Demon Cat of UltharOct 2015Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Scenario The Reeling Midnight9-27Softback New Tales of the Miskatonic ValleyMRP00032008 Miskatonic River PressCall of Cthulhu (Classic)Arkham; 1920s; Atlach-Nacha
Scenario The Reeling MidnightSoftback New Tales of the Miskatonic Valley30092020 Stygian FoxCall of Cthulhu (Classic)Arkham; 1920s; Atlach-Nacha
Rules Referee178-185Softback Chthonian StarsWDF250202011 WildFire GamesTraveller (Chthonian Stars)
Background Reference224-261Hardback Investigator's HandbookCHA231362015 ChaosiumCall of Cthulhu (Classic)
Background Reference Material82-85Softback The London GuidebookCHA23471996 ChaosiumCall of Cthulhu (Classic)
Rules Reflecting Dark Ages England in Play6-9PDF Cthulhu Dark Ages Guide to England2012 Unbound PublishingCall of Cthulhu (Dark Ages)
Rules The Reflection StalkersPDF Creatures for Modern Horror - Book 2Sep 2023 RPG GamerCall of Cthulhu (Now)
Background Reflections of Count DraculaFanzine PerChance5May 1991 Self PublishedCall of Cthulhu (Gaslight)
Scenario Reformatted for Yellow Cubes2004Website talesofterror.net Self PublishedCall of Cthulhu (Classic)
Scenario Refractions of GlasstonPDF Refractions of GlasstonDec 2019 Taylor University Professional WritingCall of Cthulhu (Classic)Indiana; 1920s
Background Refugees From the Sunken LandeZine Chaosium Digestv36n04May 2002 ChaosiumCall of Cthulhu (Classic)
Card Regalia of the Outer GodsArtifact (R)Cards New AeonCAO1311-11997 ChaosiumMythos
Card Regatta!Adventure (F)Website House of Tindalos Self PublishedMythos
Card Regatta!Adventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card RegenerationEvent (C)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Card RegenerationEvent (F)Cards Call of Cthulhu The Card GameCT182008 Fantasy Flight GamesCall of Cthulhu LCG
Rules RegentsApr 2022Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Scenario Regiment of Dread26-41Softback Tales of the Miskatonic ValleyCHA23341991 ChaosiumCall of Cthulhu (Classic)Arkham; August
Rules The Regions and Subregions of MythosWebsite A Web Page from a Friend Self PublishedMythos
Background Register of Domestic and Foreign Intelligence OrganisationsWebsite Delta Green Plausible Deniability Self PublishedCall of Cthulhu (Delta Green)
Boardgame Reign of CthulhuBoardgame Reign of CthulhuZMG711402016 Z-Man GamesPandemic
Card The Reins of PowerAdventure (F)Website House of Tindalos Self PublishedMythos
Card The Reins Of PowerAdventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Fiction Relapse90-91Softback Burning HorizonWDF233012011 WildFire GamesCthulhuTech
Card A Relaxing VacationAdventure (F)PDF Eric Johnson Mythos Collection Self PublishedMythos
Card Relentless StalkerCharacter (F)Cards For the Greater GoodCT642015 Fantasy Flight GamesCall of Cthulhu LCG
Background Religion and Beliefs of Tibet16-33Softback Mysteries of TibetCHA03512008 ChaosiumCall of Cthulhu (Classic)
Background Religion and the Druids50-56Softback Cthulhu Invictus: Britannia and BeyondGGP23012023 Golden Goblin PressCall of Cthulhu (Invictus)
Background Religion in Fantasy Gaming: Religion for Call of Cthulhu PCs34-35Magazine The Adventurer7Feb 1987 Mersey Leisure PublishingCall of Cthulhu (Classic)
Scenario The Relocation of Cottonmouth SpringsApr 2018Website Reckoning of the Dead Self PublishedCall of Cthulhu (WWII)California; 1944
Scenario Remains to be Seen52-82Softback Coming Full CirclePAG10031995 Pagan PublishingCall of Cthulhu (Classic)Massachusetts; 1932; October; Vampire
Scenario Remaking the Hatteras Reef73-77Softback Fear's Sharp Little Needles30052018 Stygian FoxCall of Cthulhu (Now)North Carolina
Fiction Remember the Arizona144-145Softback Vade MecumWDF230012008 WildFire GamesCthulhuTech
Scenario Remember, Remember42-52Magazine The Unspeakable Oath22Jan 2013 Pagan PublishingCall of Cthulhu (Classic)London; November; 1930s
Scenario Rememberance of Things PasteZine Hypergraphia1Nov 2018 Gladius GamesCall of Cthulhu (Classic)
Rules Remnants41-43Magazine Protodimension24Jan 2016 Kinstaff MediaCall of Cthulhu (Gaslight)
Card Remnants of Lost EmpiresTome (R)Website Serena's Dojo1999 Self PublishedMythos
Card RemortificationSpell (R)Cards Legends of the NecronomiconCAO1303-11996 ChaosiumMythos
Rules RemortificationeZine Chaosium Digestv24n08Mar 1998 ChaosiumMythos
Scenario Remote *2015Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)
Card Remote Whateley FarmhouseLocation (C)Cards Expeditions of Miskatonic UniversityCAO1301-11996 ChaosiumMythos
Card RendCharacter (F)Cards The Thousand YoungCT652015 Fantasy Flight GamesCall of Cthulhu LCG
Card Render of VeilsCharacter (C)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Render of VeilsCharacter (F)Cards Arkham Edition Premium Starter Set2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Render of VeilsCharacter (F)Cards Arkham Edition Premium Starter Set2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Render of VeilsCharacter (F)Cards Arkham Edition Premium Starter Set2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Render of VeilsCharacter (F)Cards Arkham Edition Premium Starter Set2004 Fantasy Flight GamesCall of Cthulhu CCG
Fiction A Rendering from the Arabic8-24Softback The KarkAsh-Ton CycleCHA60462008 ChaosiumCall of Cthulhu (Classic)
Scenario Rendezvous in Rama or "Beauty is in the Eye of the Beholder" *2018Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)California
Card Rendezvous with AllenAdventure (F)Website House of Tindalos Self PublishedMythos
Card Rendezvous With AllenAdventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Scenario The Rending Box4-26PDF The Rending BoxPELGT212011 Pelgrane PressTrail of CthulhuLondon
Scenario The Rending Box94-112Softback The Final RevelationPELGT332013 Pelgrane PressTrail of CthulhuEngland
Card Rending the VeilEvent (U)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Rene BonvillainCharacter (F)Cards The Thousand YoungCT652015 Fantasy Flight GamesCall of Cthulhu LCG
Scenario Renegade Tentacles of DoomPDF Renegade Tentacles of Doom2023 Modiphius EntertainmentAchtung! CthulhuFrance; June; 1944
Card Renowned SculptorCharacter (F)Cards The Wailer BelowCT372010 Fantasy Flight GamesCall of Cthulhu LCG
Rules The RepairerSep 2020Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Scenario The Repairer of Reputations4-37PDF The Repairer of ReputationsPELGT232011 Pelgrane PressTrail of CthulhuNew York; 1920
Scenario The Repairer of Reputations4-41Softback Out of SpacePELGT302013 Pelgrane PressTrail of CthulhuNew York; 1920
Card Repairer of ReputationsCharacter (C)Cards Forgotten Cities2005 Fantasy Flight GamesCall of Cthulhu CCG
Fiction The Repairer of Reputations11-37Softback The Hastur CycleCHA60201993 ChaosiumCall of Cthulhu (Classic)
Fiction The Repairer of Reputations14-41Softback The Hastur CycleCHA60011993 ChaosiumCall of Cthulhu (Classic)
Rules Replies on SanityeZine Chaosium Digestv01n10Mar 1993 ChaosiumCall of Cthulhu (Classic)
Card Repo ManCharacter (F)Cards The Antediluvian DreamsCT212009 Fantasy Flight GamesCall of Cthulhu LCG
Scenario Report of Delusions of an Invisible Monster23-25Magazine The Arkham Gazette1Nov 2013 Sentinel Hill PressCall of Cthulhu (Classic)Arkham
Background Report on Adirondack Cadaver19-20Magazine The Black Seal1Nov 2001 Brichester University PressCall of Cthulhu (Delta Green)
Background Report on NYC Burn Victim71-72Magazine The Black Seal3Nov 2003 Brichester University PressCall of Cthulhu (Delta Green)
Background Report on Peruvian Mummy67-68Magazine The Black Seal2Mar 2003 Brichester University PressCall of Cthulhu (Delta Green)
Scenario RepossessionD:146-157Boxed Horror on the Orient ExpressCHA2331-X1991 ChaosiumCall of Cthulhu (Classic)Bulgaria; 1923
Scenario RepossessionD:7-38Boxed Horror on the Orient ExpressCHA231302014 ChaosiumCall of Cthulhu (Classic)Bulgaria; 1923
Scenario RepossessionB:197-224Hardback Horror on the Orient ExpressCHA23130-SET2020 ChaosiumCall of Cthulhu (Classic)Bulgaria; 1923
Card ReprisalEvent (F)Cards Arkham Edition Premium Starter Set2004 Fantasy Flight GamesCall of Cthulhu CCG
Scenario The Reptile House28-30, 32-33Magazine Games Master International15Oct 1991 NewsfieldCall of Cthulhu (Classic)1920s; Serpentman
Background Requiem for Shaggai: A History of the Devil's Opera16-19Softback The Island of IgnoranceGGP13012013 Golden Goblin PressCall of Cthulhu (Classic)
Fiction Requiem for the Burning GodPDF Cthulhu's Dark CultsCHA60442010 ChaosiumCall of Cthulhu (Classic)
Card Requisitions OfficerCharacter (U)Cards Forgotten Cities2005 Fantasy Flight GamesCall of Cthulhu CCG
Scenario The Rescue38-45Softback Cthulhu CompanionCHA23041983 ChaosiumCall of Cthulhu (Classic)Werewolf
Scenario The Rescue158-165Hardback Call of CthulhuCHA2317-H1986 ChaosiumCall of Cthulhu (Classic)Werewolf
Card RescuedAdventure (F)Website House of Tindalos Self PublishedMythos
Background Research34-35Softback Mysteries of IrelandCHA04082012 ChaosiumCall of Cthulhu (Classic)
Background Research & Resources18-27Softback 1920s Investigator's Companion Vol. ICHA23431993 ChaosiumCall of Cthulhu (Classic)
Card Research AssistantCharacter (F)Cards Words of PowerCT542012 Fantasy Flight GamesCall of Cthulhu LCG
Boardgame Research Assistant Promo CardBoardgame Research Assistant Promo CardAug 2010 Steve Jackson GamesMunchkin
Card Research ExpeditionEvent (R)Cards Unspeakable Tales2004 Fantasy Flight GamesCall of Cthulhu CCG
Background The Research Logs of the Kenning Expedition25-45Softback Twilight MemoirsCHA03252005 ChaosiumCall of Cthulhu (Classic)
Card The Research of Charles Dexter WardAdventure (F)Website House of Tindalos Self PublishedMythos
Card The Research Of Charles Dexter WardAdventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Scenario A Research Project *101Softback Taint of MadnessCHA23541995 ChaosiumCall of Cthulhu (Classic)New York; 1990s
Novelty The Residence of Mr FinklePDF Cthulhu Maps - The Residence of Mr Finkle0282022 LovemapsCall of Cthulhu (Classic)
Rules Resident Evil *2-26PDF Resident Evil2002 Self PublishedCall of Cthulhu (Now)
Scenario Residue of the PastPDF Residue of the PastJan 2021 ChaosiumCall of Cthulhu (Now)New Hampshire; Spring; 2020
Background Resistance Movements in Europe12-17PDF Vive La ResistanceMUH0010329Jul 2023 Modiphius EntertainmentAchtung! Cthulhu
Background The Resistance Needs You!18-33PDF Vive La ResistanceMUH0010329Jul 2023 Modiphius EntertainmentAchtung! Cthulhu
Rules Resistance, Armour, Cover and Morale13-16PDF Achtung! Cthulhu Basic RulesMUH00103422023 Modiphius EntertainmentAchtung! Cthulhu
Rules Resolution1PDF Lift the Veil2021 Ineffable PressLift the Veil
Background Resolution Zero: The United Nations and the Starkweather Moore Conspiracy73-86Magazine The Black Seal3Nov 2003 Brichester University PressCall of Cthulhu (Delta Green)
Scenario Resonance181-185Softback Cthulhu ApocalypsePELGT402015 Pelgrane PressTrail of CthulhuMassachusetts; 1939
Scenario Resonate102-104Softback Lovecraftesque2016 Black Armada GamesLovecraftesqueNew York; 1972
Rules Resonator Game Mechanics59-67Softback Delta Green Eyes Only Vol 3: Project RainbowPAG21062000 Pagan PublishingCall of Cthulhu (Delta Green)
Rules Resonator Game Mechanics126-128Softback Delta Green Eyes OnlyPAG10132007 Pagan PublishingCall of Cthulhu (Delta Green)
Rules Resource Scarcity Tables for Example Post-Apocalypse Game Settings309-316PDF APOCTHULHUcr61002020 Cthulhu RebornAPOCTHULHU
Background Resources6-38Softback Walker in the WastesPAG10021994 Pagan PublishingCall of Cthulhu (Classic)
Background Resources2-27Softback The Realm of ShadowsPAG10061997 Pagan PublishingCall of Cthulhu (Classic)
Rules Resources103-104Hardback Keeper TipsCHA51202021 ChaosiumCall of Cthulhu (Classic)
Background Resources for 1920s Australia63-84Softback Terror AustralisCHA231552018 ChaosiumCall of Cthulhu (Classic)
Card Respected New England Doctor/Pragmatic HoboInvestigator (F)Cards LimitedCAO1300-11996 ChaosiumMythos
Card RessurectionSpell (C)Cards Legends of the NecronomiconCAO1303-11996 ChaosiumMythos
Scenario Ressurection91-95Softback Fear's Sharp Little Needles30052018 Stygian FoxCall of Cthulhu (Now)
Scenario Rest Stops388-397PDF 40 Adventures for Call of Cthulhu2002 Self PublishedCall of Cthulhu (Now)California; 1990s
Scenario Rest Stops1-10PDF Rest Stops1996 Self PublishedCall of Cthulhu (Now)California; 1990s
Scenario Rest Stops4-11eZine Opifex Bimonthly41996 Self PublishedCall of Cthulhu (Now)California; 1990s
Scenario RestitutionPDF RestitutionDec 2020 ChaosiumCall of Cthulhu (Now)The Netherlands; 2020s
Card Restless and WaryEvent (R)Cards Unspeakable Tales2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Restless and WaryEvent (F)Cards Call of Cthulhu The Card GameCT182008 Fantasy Flight GamesCall of Cthulhu LCG
Card Restless CaporioneCharacter (F)Cards Terror in VeniceCT612013 Fantasy Flight GamesCall of Cthulhu LCG
Card Restless DeadEvent (F)Cards Eldritch Edition Premium Starter Set2005 Fantasy Flight GamesCall of Cthulhu CCG
Card Restless DeadCharacter (C)Cards Forbidden Relics2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Restless DeadCharacter (F)Cards The Thousand YoungCT652015 Fantasy Flight GamesCall of Cthulhu LCG
Card Restless Mi-GoCharacter (F)Cards For the Greater GoodCT642015 Fantasy Flight GamesCall of Cthulhu LCG
Scenario A Restoration of Evil4-22Softback Keeper's ScreenCHA23872000 ChaosiumCall of Cthulhu (Classic)New York; 1928; Tulzscha
Card Resurrected FoeCharacter (C)Cards Forgotten Cities2005 Fantasy Flight GamesCall of Cthulhu CCG
Rules Resurrection MaryOct 2005Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Scenario The Resurrection Men115-126Softback Kingdom of the BlindCHA03592008 ChaosiumCall of Cthulhu (Classic)Scotland; 1920s
Scenario Resurrection MenPDF Resurrection MenMUH05802332023 Modiphius EntertainmentAchtung! CthulhuGhoul
Background The Resurrection of Commodore Cook2006Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)
Fiction The Resurrection of Kzadool-Ra207-?Softback The Tsathoggua CycleCHA60292003 ChaosiumCall of Cthulhu (Classic)
Rules The Resurrection Spell: Bringing Back The DeadeZine Chaosium Digestv32n12Jan 2001 ChaosiumCall of Cthulhu (Classic)
Scenario Resurrection WoodsPDF Resurrection WoodsNov 2021 ChaosiumCall of Cthulhu (Now)Vermont
Track Retired00:32Recording Eternal Lies SuitePELGT172010 Pelgrane PressTrail of Cthulhu
Card RetokaLocation (C)Cards Cthulhu RisingCAO1302-11996 ChaosiumMythos
Scenario The RetreatPDF The RetreatAug 2024 ChaosiumCall of Cthulhu (Now)Montana
Scenario The Return of Cyris Crane *3-12PDF The Return of Cyris Crane2017 Skirmisher PublishingCall of Cthulhu (Classic)Arkham; 1917
Scenario The Return of Doctor Moreau32-48Magazine The Whisperer5Aut 2003 Severn Valley PressCall of Cthulhu (Classic)Pacific Ocean; 1920s; Mi-Go
Scenario The Return of Doctor Moreau *PDF The Return of Doctor Moreau2006 Self PublishedCall of Cthulhu (Classic)Oceania; 1920s
Fiction The Return of Hastur248-270Softback The Hastur CycleCHA60201993 ChaosiumCall of Cthulhu (Classic)
Fiction The Return of Hastur262-270Softback The Hastur CycleCHA60011993 ChaosiumCall of Cthulhu (Classic)
Scenario The Return of Old Reliable60-84Softback Atomic-Age CthulhuCHA231222013 ChaosiumCall of Cthulhu (Atomic)Florida; December; 1958; Greater Race
Scenario The Return of Quetzalcoatl70-87Hardback Wrath of the GodsEW022015 Fantasy Flight GamesThe End of the World
Scenario The Return of the Dark Lady30-41Fanzine Cerebretron3Mar 1987 Self PublishedCall of Cthulhu (Dreamlands)Dreamlands
Scenario The Return of the Headless Horseman26-33Softback Halloween Horror Returns!CHA03472007 ChaosiumCall of Cthulhu (Classic)New York State; 1924; Halloween
Scenario Return of the HoundPDF Return of the Hound2006 ADP SystemsCall of Cthulhu (Classic)England; 1925
Scenario The Return of the Hounds64-124Softback The House of R'lyehCHA231272013 ChaosiumCall of Cthulhu (Classic)England; March; 1922
Scenario The Return of the King93-113Softback Strange Tales of Dread & Wonder #1CHA03292006 ChaosiumCall of Cthulhu (Strange Aeons) [1960s]California; 1968; May
Scenario Return of the King2001Website talesofterror.net Self PublishedCall of Cthulhu (Classic)Nevada
Scenario The Return of the Magician34-44Softback Plan 09 From HalloweenCHA03792009 ChaosiumCall of Cthulhu (Classic)Arkham; 1920s
Card Return Of The Night Of The Curse Of The Living DeadAdventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card Return Of The Night Of The Curse Of The Living Dead 2Adventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card Return of the Night of the Curse of the Living Dead IAdventure (F)Website House of Tindalos Self PublishedMythos
Card Return of the Night of the Curse of the Living Dead IIAdventure (F)Website House of Tindalos Self PublishedMythos
Scenario The Return of the PasteZine Chaosium Digestv20n12Aug 1997 ChaosiumCall of Cthulhu (Classic)
Scenario Return of the Ripper3-114Softback Return of the RipperCHA03392007 ChaosiumCall of Cthulhu (Gaslight)London; 1893
Card The Return of the SorcererAdventure (F)Website House of Tindalos Self PublishedMythos
Card The Return Of The SorcererAdventure (F)Website Unofficial Mythos Adventure Archive Self PublishedMythos
Card Return to CarcosaEvent (F)Cards Terror in VeniceCT612013 Fantasy Flight GamesCall of Cthulhu LCG
Background Return to Dunwich2-13Softback Return to DunwichCHA23301991 ChaosiumCall of Cthulhu (Classic)
Scenario Return to Dunwich140-150Softback H.P. Lovecraft's DunwichCHA88022002 ChaosiumCall of Cthulhu (Classic)Dunwich; 1929
Scenario Return to Earth272-281Softback The Sense of the Sleight of Hand ManAPU80012013 Arc Dream PublishingCall of Cthulhu (Dreamlands)Dreamlands
Scenario Return to Lake's Camp235-243Softback Beyond the Mountains of MadnessCHA23801999 ChaosiumCall of Cthulhu (Classic)Antarctica; December; 1933
Scenario Return to Ravenstone Sanitarium40-65Softback Ravenstone SanitariumCHA03502008 ChaosiumCall of Cthulhu (Classic)New England; 1920s
Scenario Return to Red Hook21-39Softback Arkham Detective TalesPELGT082009 Pelgrane PressTrail of CthulhuNew York
Scenario Return to Red Hook23-41Softback Arkham Detective Tales (Extended Edition)PELGT082010 Pelgrane PressTrail of CthulhuNew York
Scenario Return to Teutoberg ForestPDF Return to Teutoberg ForestJun 2022 ChaosiumCall of Cthulhu (Invictus)Germany
Boardgame Return to the Dunwich LegacyBoardgame Return to the Dunwich LegacyAHC282018 Fantasy Flight GamesArkham Horror: The Card Game
Background Return to the Far Side of the MoonWebsite Robo's Mythos CCG Web Page Self PublishedMythos
Boardgame Return to the Forgotten AgeBoardgame Return to the Forgotten AgeAHC462020 Fantasy Flight GamesArkham Horror: The Card Game
Scenario Return to the Monolith298-311PDF 40 Adventures for Call of Cthulhu2002 Self PublishedCall of Cthulhu (Now)Hungary; 1990s
Scenario Return to the Monolith1-14PDF Return to the Monolith1998 Self PublishedCall of Cthulhu (Now)Hungary; 1990s
Scenario Return to the Monolith17-32eZine Opifex Bimonthly12Mar 1998 Self PublishedCall of Cthulhu (Now)Hungary; 1990s
Scenario Return to the MonolithPDF Return to the MonolithMar 2018 ChaosiumCall of Cthulhu (Classic)Hungary; 1990s
Scenario Return to the Monolith, Part 1eZine Chaosium Digestv25n02Apr 1998 ChaosiumCall of Cthulhu (Classic)Hungary; 1990s
Scenario Return to the Monolith, Part 2eZine Chaosium Digestv25n03Apr 1998 ChaosiumCall of Cthulhu (Classic)Hungary; 1990s
Boardgame Return to the Night of the ZealotBoardgame Return to the Night of the ZealotAHC262018 Fantasy Flight GamesArkham Horror: The Card Game
Boardgame Return to the Path of CarcosaBoardgame Return to the Path of CarcosaAHC362019 Fantasy Flight GamesArkham Horror: The Card Game
Scenario Return to the Witch HouseSoftback Return to the Witch House2022 Stardust PublicationsDark AeonsChicago; 2016; May
Scenario Return to Tonga115-125Softback Utatti AsfetCHA23601996 ChaosiumCall of Cthulhu (Classic)Tonga; 1991
Fiction Return to Y'ha-nthlei88-105PDF Tales out of InnsmouthCHA60242006 ChaosiumCall of Cthulhu (Classic)
Scenario Return to Yellow Buck Mountain37-48Softback The Phantom of Wilson CreekCHA04042013 ChaosiumCall of Cthulhu (Classic)North Carolina; 1926; Ghoul
Scenario Return to Yellow Buck Mountain -192645-52PDF The Phantom of Wilson CreekMay 2023 ChaosiumCall of Cthulhu (Classic)North Carolina; 1926; Ghoul
Card Return to YithEvent (F)Cards The Key and the GateCT602013 Fantasy Flight GamesCall of Cthulhu LCG
Scenario The Returned5-13PDF The ReturnedMay 2022 ChaosiumCall of Cthulhu (Classic)Boston
Scenario The Returning Lilith's Case2022Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)Vermont; December
Fiction Reunion142-143Softback CthulhuTechWDF230002007 WildFire GamesCthulhuTech
Scenario ReunionWebsite plateau-of-leng.demon.co.uk Self PublishedCall of Cthulhu (Classic)England; 1990s
Scenario The ReunionJun 2017Website shoggoth.net Self PublishedCall of Cthulhu (Now)2017
Scenario The ReunionPDF The ReunionJul 2020 ChaosiumCall of Cthulhu (Classic)Arkham; 1929; Mi-Go
Boardgame Revealed Cult Secrets Promo CardBoardgame Revealed Cult Secrets Promo CardJun 2016 Steve Jackson GamesMunchkin
Card Revealed of RaSupport (R)Cards Eldritch Edition2005 Fantasy Flight GamesCall of Cthulhu CCG
Scenario Revelation106-123Hardback Wrath of the GodsEW022015 Fantasy Flight GamesThe End of the World
Card Revelation of the SpheresEvent (F)Cards Spawn of Madness2006 Fantasy Flight GamesCall of Cthulhu CCG
Card Revelation of the SpheresEvent (F)Cards Spawn of MadnessCT12e2011 Fantasy Flight GamesCall of Cthulhu LCG
Scenario Revelations81-88Softback Nocturnum: Hollow WindsCC021998 Fantasy Flight GamesCall of Cthulhu (Now)Georgia state
Scenario Revelations *151-158Softback Nocturnum: d20CC052002 Fantasy Flight GamesCall of Cthulhu (Now)Georgia state
Card Revelations Of GlaakiTome (F)Cards UnlimitedCAO1306-11997 ChaosiumMythos
Card Revelations of Hali, Words of the Shepherd's GodSupport (R)Cards Masks of Nyarlathotep2005 Fantasy Flight GamesCall of Cthulhu CCG
Scenario Revelations of the BacchaePDF Revelations of the BacchaeGRR964012023 Green Ronin PublishingCthulhu Awakens
Rules Revenant Characters11-26Softback Cthulhu Live: Lost Souls00052000 Fantasy Flight GamesCall of Cthulhu (Classic)
Scenario Revenge of the Hei People89-101Softback The Bride of Halloween HorrorCHA03642009 ChaosiumCall of Cthulhu (Now)England; 2007; Halloween
Boardgame Revenge of the Old OnesBoardgame Revenge of the Old Ones2021 SchilMil GamesAuZtralia
Scenario Reverberations1-10Softback Reverberations2017 Arc Dream PublishingDelta GreenChicago
Scenario Reverberations4-15Softback A Night at the OperaAPU81152018 Arc Dream PublishingDelta GreenChicago; May; 2016
Card Reverend Baxter LullyAlly (C)Cards New AeonCAO1311-11997 ChaosiumMythos
Rules Reverend Ezekiel StonePDF Villains for Modern Horror - Book 3Sep 2023 RPG GamerCall of Cthulhu (Now)
Fiction The Reverend Mr Goodworks and the Yeggs of YigPDF Steampunk CthulhuCHA60542014 ChaosiumCall of Cthulhu (Steampunk)
Card Reversing the Temporal FlowEvent (U)Cards Eldritch Edition2005 Fantasy Flight GamesCall of Cthulhu CCG
Card Reversing the Temporal FlowCharacter (F)Cards Eldritch Edition Premium Starter Set2005 Fantasy Flight GamesCall of Cthulhu CCG
Rules Revised Combat RulesWebsite The Dark Gulf of N'kai Self PublishedCall of Cthulhu (Delta Green)
Rules Revised Sanity RuleseZine Chaosium Digestv34n03Jun 2001 ChaosiumCall of Cthulhu (Classic)
Rules Revised Skill SetWebsite Delta Green Plausible Deniability Self PublishedCall of Cthulhu (Delta Green)
Scenario The Revival50-62Magazine The Unspeakable Oath12Jun 1995 Pagan PublishingCall of Cthulhu (Classic)Canada; 1920s; Winter; Serpentman; Gnoph-Keh
Scenario The RevivalWebsite Nyarlathotep Web Designs Self PublishedCall of Cthulhu (Classic)The Netherlands; Winter; 1920s
Background Revolution52-56Softback Reign of TerrorCHA231492017 ChaosiumCall of Cthulhu (Strange Aeons)
Rules RevolverOct 2019Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Rules Rewards for ValorB:86Boxed Call of CthulhuCHA2009-X1981 ChaosiumCall of Cthulhu (Classic)
Rules Rewards of SuccessB:22Boxed Call of Cthulhu Starter SetCHA23158-X2018 ChaosiumCall of Cthulhu (Classic)
Rules Rewards, Penalties and Lingering Effects135-136PDF InversionFeb 2024 ChaosiumCall of Cthulhu (Now)
Card RhabdaphobiaEvent (U)Cards LimitedCAO1300-11996 ChaosiumMythos
Card Rhan TegothMonster (C)Cards LimitedCAO1300-11996 ChaosiumMythos
Rules Rhan-Tegoth1-6PDF Rhan-TegothJCG0322019 Just Crunch GamesThe Cthulhu Hack
Rules Rhan-Tegoth: A New Deity for Call of Cthulhu30-31Magazine Fantasy Gamer3Dec 1983 Steve Jackson GamesCall of Cthulhu (Classic)
Card Rhoby HarrisAlly (R)Cards LimitedCAO1300-11996 ChaosiumMythos
Scenario The Rhodesian2022Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)
Scenario Rhyme With Dark ReasonPDF Rhyme With Dark Reason2004 Self PublishedCall of Cthulhu (Classic)Deep One
Novelty A Riad in the DesertPDF Cthulhu Maps - A Riad in the Desert0162021 LovemapsCall of Cthulhu (Classic)
Scenario Rich FoodPDF Rich FoodDec 2022 ChaosiumCall of Cthulhu (Now)California; December
Rules Rich Man, Poor Man1-2PDF Rich Man, Poor Man2019 Beyond Belief GamesBlack Books
Card Rich WidowCharacter (F)Cards Perilous TrialsCT412011 Fantasy Flight GamesCall of Cthulhu LCG
Background Richard Bateman1998Website delta-green.com Pagan PublishingCall of Cthulhu (Delta Green)
Card Richard Finchington IIICharacter (F)Cards Ancient HorrorsCT172008 Fantasy Flight GamesCall of Cthulhu LCG
Rules Richard Laymon's AmaraJun 2006Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Card Richard LundAlly (F)Cards Sesqua Valley Self PublishedMythos
Card Richard PikeCharacter (F)Cards Seekers of KnowledgeCT592012 Fantasy Flight GamesCall of Cthulhu LCG
Card Richard Upton PickmanAlly (C)Cards DreamlandsCAO1307-11997 ChaosiumMythos
Card Richard Upton PickmanAlly (C)Cards Legends of the NecronomiconCAO1303-11996 ChaosiumMythos
Card Richard Upton PickmanCharacter (F)Cards Call of Cthulhu The Card GameCT182008 Fantasy Flight GamesCall of Cthulhu LCG
Card Richard Upton PickmanCharacter (F)Cards Sleep of the DeadCT302009 Fantasy Flight GamesCall of Cthulhu LCG
Card Richard Upton Pickman, Genius PainterCharacter (R)Cards Forgotten Cities2005 Fantasy Flight GamesCall of Cthulhu CCG
Background Ridden by FearWebsite House of Tindalos Self PublishedMythos
Card RiddlesEvent (U)Cards Eldritch Edition2005 Fantasy Flight GamesCall of Cthulhu CCG
Scenario Ride a White Horse1-1PDF Ride a White Horse2016 Self PublishedLovecraftesque
Scenario The Ride Home2005Website talesofterror.net Self PublishedCall of Cthulhu (Classic)
Fiction The Rider of the Dark251-?PDF Frontier CthulhuCHA60412007 ChaosiumCall of Cthulhu (Darker Trails)
Card Riding ShotgunEvent (F)Cards Screams from WithinCT382010 Fantasy Flight GamesCall of Cthulhu LCG
Scenario Riding the NorthboundSoftback Riding the NorthboundGGP19092019 Golden Goblin PressCall of Cthulhu (Classic)Massachusetts; November
Rules Rifles62-75Softback Investigator Weapons Volume 1: The 1920s and 1930s60-IHB012012 Sixtystone PressCall of Cthulhu (Classic)
Rules Rifles93-133Softback Investigator Weapons Volume 2: Modern Day60-IHB022015 Sixtystone PressCall of Cthulhu (Now)
Rules The Right Hand PathOct 2019Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Rules The Right Monster, The Right Adventure81-84, 86, 118Magazine Dragon223Nov 1995 TSRCall of Cthulhu (Classic)
Scenario Rigid Air44-55Softback Fearful PassagesCHA23351992 ChaosiumCall of Cthulhu (Classic)Canada; 1920s
Card Rime of the Ancient MarinerAdventure (F)Website House of Tindalos Self PublishedMythos
Rules The Ring of Blood StoneMagazine Hit Points6Jan 1992 National Association for the Advancement of Role Playing GamesCall of Cthulhu (Classic)
Background The Ring of Blood StoneMagazine The Familiar4Jun 1995 Self PublishedCall of Cthulhu (Classic)
Card Ring of EibonArtifact (R)Cards LimitedCAO1300-11996 ChaosiumMythos
Rules The Ring of EiboneZine Chaosium Digestv17n08Dec 1996 ChaosiumMythos
Rules The Ring of Eibon4PDF Sanctum Secorum8Jan 2016 Sanctum MediaDungeon Crawl Classics
Scenario Ring of Steel2020Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)London; 2016
Card Ring of TemptationAdventure (F)Website House of Tindalos Self PublishedMythos
Scenario A Ring of Toadstools117-137Softback Halloween Horror 2CHA03332006 ChaosiumCall of Cthulhu (Dark Ages)United Kingdom; Halloween
Scenario Riot at Red PlankSoftback Riot at Red PlankGGP18032018 Golden Goblin PressCall of Cthulhu (Classic)Michigan; 1904
Card The Rip-offEvent (R)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Scenario The RipperSoftback Tales of Terror (I)1990 Pagan PublishingCall of Cthulhu (Classic)England
Scenario The Ripper10PDF Tales of Terror (III) Self PublishedCall of Cthulhu (Classic)England
Scenario The Ripper1990Website talesofterror.net Self PublishedCall of Cthulhu (Classic)England
Scenario Risam Vellere28-54Softback Caligo Accedendum TournamentCHA03092004 ChaosiumCall of Cthulhu (Dark Ages)England; November; Daoloth
Boardgame Rise of CthulhuBoardgame Rise of Cthulhu2015 Self PublishedRise of Cthulhu
Scenario Rise of M'Bakadala, He Who Swims and Eats without Mouth99-104Softback Secrets of the CongoCHA03872010 ChaosiumCall of Cthulhu (Classic)Democratic Republic of the Congo; 1920s
Scenario The Rise of R'lyeh57-62Softback Cthulhu ClassicsCHA33011989 ChaosiumCall of Cthulhu (Classic)Pacific Ocean; 1920s; Cthulhu
Scenario The Rise of R'lyeh126-135Softback Shadows of Yog-SothothCHA23972004 ChaosiumCall of Cthulhu (Classic)Pacific Ocean; 1920s; Cthulhu
Scenario The Rise of R'lyeh57-62Softback Shadows of Yog-SothothCHA20101982 ChaosiumCall of Cthulhu (Classic)Pacific Ocean; 1920s; Cthulhu
Boardgame Rise of the EldersBoardgame Rise of the Elders2017 Self PublishedRise of the Elders
Scenario Rise of the King175-198Softback The Curse of NinevehCB73552015 Cubicle 7Call of Cthulhu (Classic)London; June; 1926
Boardgame Rise of the Old OnesBoardgame Rise of the Old Ones2021 Japanime GamesKamigami Battles
Scenario Rise of the Ophidian EmpireWebsite RPG Archive Self PublishedCall of Cthulhu (Classic)London; 1887; Serpentman
Scenario Rise of the Ophidian Empire, Part 1eZine Chaosium Digestv33n05Apr 2001 ChaosiumCall of Cthulhu (Classic)London; 1887; Serpentman
Scenario Rise of the Ophidian Empire, Part 2eZine Chaosium Digestv33n06Apr 2001 ChaosiumCall of Cthulhu (Classic)London; 1887; Serpentman
Scenario Rise of the Ophidian Empire, Part 3eZine Chaosium Digestv33n07Apr 2001 ChaosiumCall of Cthulhu (Classic)London; 1887; Serpentman
Scenario Rise of the Ophidian Empire, Part 4eZine Chaosium Digestv33n08Apr 2001 ChaosiumCall of Cthulhu (Classic)London; 1887; Serpentman
Background Rise of the Serpent73-94PDF The Serpent and the SandsMUH00103302023 Modiphius EntertainmentAchtung! Cthulhu
Scenario Rise of the Sleeper1-28Softback Lurking Fears0001Jan 1990 Triad EntertainmentsCall of Cthulhu (Classic)Florida; October; 1920s; Glaaki
Scenario The Rise of TsathogguaPDF The Rise of Tsathoggua2024 Spotless Dice GamesFate of Cthulhu
Scenario The Rise of Xnaaki1-16Magazine The Unbound Book0Aug 2002 Unbound PublishingCall of Cthulhu (Classic)Arkham; Summer; 1920; Great Old One
Scenario Rising from the StarsPDF Rising from the StarsNov 2020 ChaosiumCall of Cthulhu (Classic)Massachusetts
Scenario A Rising Storm281Softback CthulhuTechWDF230002007 WildFire GamesCthulhuTechOceania
Background The Rising Tide42-45Softback Interface 19.40MUH050027AC2015 Modiphius EntertainmentSavage Worlds (Achtung!), Call of Cthulhu (Achtung!), Interface Zero
Scenario The Rite of Goff'nn Hupadgh55-99eZine Opifex Bimonthly21Sep 1999 Self PublishedCall of Cthulhu (Classic)New York; March; 1920
Card Rite of PassageEvent (R)Cards Eldritch Edition2005 Fantasy Flight GamesCall of Cthulhu CCG
Card Rite of RebirthSupport (C)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Rite of the Broken StoneEvent (C)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Rite of the Broken StoneEvent (F)Cards Arkham Edition Premium Starter Set2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Rite of the Broken StoneEvent (F)Cards Arkham Edition Premium Starter Set2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Rite of the Chosen OneEvent (U)Cards Unspeakable Tales2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Rite of the Silver GateSupport (F)Cards The Key and the GateCT602013 Fantasy Flight GamesCall of Cthulhu LCG
Card Rite of the Silver KeySupport (F)Cards The Key and the GateCT602013 Fantasy Flight GamesCall of Cthulhu LCG
Boardgame Rites of CthulhuBoardgame Rites of Cthulhu2018 Quirky Engine EntertainmentRites of Cthulhu
Card Rites of Luveh KeraphSupport (C)Cards Eldritch Edition2005 Fantasy Flight GamesCall of Cthulhu CCG
Boardgame RitualBoardgame Ritual2022 Ravenkeep ProductionsRitual
Card The Ritual ConspiracyConspiracy (F)Cards Conspiracies of Chaos2006 Fantasy Flight GamesCall of Cthulhu CCG
Card The Ritual ConspiracyConspiracy (F)Cards Conspiracies of ChaosCT14e2011 Fantasy Flight GamesCall of Cthulhu LCG
Rules Ritual Curses4Softback Fragments of FearCHA23101985 ChaosiumCall of Cthulhu (Classic)
Card Ritual InitiationEvent (F)Cards In the Dread of NightCT282009 Fantasy Flight GamesCall of Cthulhu LCG
Card Ritual of BellepharEvent (F)Cards Into TartarusCT512011 Fantasy Flight GamesCall of Cthulhu LCG
Card Ritual of ExclusionSupport (F)Cards The Unspeakable PagesCT572012 Fantasy Flight GamesCall of Cthulhu LCG
Card Ritual of ExpulsionSupport (F)Cards The Thousand YoungCT652015 Fantasy Flight GamesCall of Cthulhu LCG
Card Ritual of InfernoSupport (F)Cards That Which ConsumesCT452011 Fantasy Flight GamesCall of Cthulhu LCG
Card Ritual of PowerSupport (F)Cards Initiations of the FavoredCT422011 Fantasy Flight GamesCall of Cthulhu LCG
Card Ritual of SummoningSupport (F)Cards The Order of the Silver TwilightCT332010 Fantasy Flight GamesCall of Cthulhu LCG
Card Ritual of the ConstructSupport (F)Cards The Order of the Silver TwilightCT332010 Fantasy Flight GamesCall of Cthulhu LCG
Card Ritual of the LanceSupport (F)Cards The Order of the Silver TwilightCT332010 Fantasy Flight GamesCall of Cthulhu LCG
Scenario Ritual Pursuits3-5Softback Ritual Pursuits2011 Pelgrane PressTrail of CthulhuIndiana; 1931; Nightgaunt
Card Ritual SacrificeEvent (R)Cards Arkham Edition2004 Fantasy Flight GamesCall of Cthulhu CCG
Rules Rituals of the Deep Ones1-5PDF Rituals of the Deep Ones2015 Necromancers of the NorthwestPathfinder
Background Rituals of the Eternal Mother1-2PDF Rituals of the Eternal Mother2018 Golden Goblin PressCall of Cthulhu (Invictus)
Rules Rituals, Rites and Ceremonies: All Hail the Dark Ones21-25Softback Dark MirrorCHA03382007 ChaosiumCall of Cthulhu (Classic)
Scenario The Rival Congo Expeditions9-22Softback Secrets of the CongoCHA03872010 ChaosiumCall of Cthulhu (Classic)Arkham; 1920s
Fiction The River of Night's Dreaming54-83Softback The Hastur CycleCHA60201993 ChaosiumCall of Cthulhu (Classic)
Fiction The River of Night's Dreaming60-93Softback The Hastur CycleCHA60011993 ChaosiumCall of Cthulhu (Classic)
Card River of SerpentsSupport (F)Cards Screams from WithinCT382010 Fantasy Flight GamesCall of Cthulhu LCG
Scenario River of Tears81-112Softback Our Ladies of SorrowMRP00052009 Miskatonic River PressCall of Cthulhu (Now)Illinois
Rules Rlim ShaikorthFanzine Dagon5Jan 1985 Self PublishedCall of Cthulhu (Classic)
Scenario Road Kill40-48Magazine The Unspeakable Oath12Jun 1995 Pagan PublishingCall of Cthulhu (Classic)Minnesota; 1925; July
Rules A Road Less Travelled13-26Magazine The Black Seal3Nov 2003 Brichester University PressCall of Cthulhu (Now)
Scenario Road RageSoftback More Tales of Terror PAG21052000 Pagan PublishingCall of Cthulhu (Classic)
Background The Road to Hali18-30Magazine The Unspeakable Oath1Dec 1990 Pagan PublishingCall of Cthulhu (Classic)
Background The Road to Hali46-57Fanzine Crypt of Cthulhu891995 Necronomicon PressCall of Cthulhu (Classic)
Boardgame The Road to Innsmouth *Boardgame The Road to InnsmouthHGE-AH01-EN2023 Hourglass EscapesArkham Horror
Scenario Road to LunacyPDF Road to LunacySep 2024 ChaosiumCall of Cthulhu (Now)
Scenario The Road to Mexico18-32PDF The Shadow Over the Sierra MadreOct 2024 ChaosiumCall of Cthulhu (Darker Trails)Texas
Scenario The Road UnraveledPDF The Road UnraveledApr 2020 ChaosiumCall of Cthulhu (Now)
Scenario RoadkillSoftback Tales of Terror (I)1990 Pagan PublishingCall of Cthulhu (Classic)
Scenario Roadkill34PDF Tales of Terror (III) Self PublishedCall of Cthulhu (Classic)
Scenario Roadkill1990Website talesofterror.net Self PublishedCall of Cthulhu (Classic)
Scenario Roadside AssistanceSoftback More Tales of Terror PAG21052000 Pagan PublishingCall of Cthulhu (Classic)
Card Roald EllsworthCharacter (F)Cards Seekers of KnowledgeCT592012 Fantasy Flight GamesCall of Cthulhu LCG
Scenario The Roar in the DarkPDF The Roar in the DarkSep 2021 ChaosiumCall of Cthulhu (Strange Aeons) [Ancient China]China
Background The Roaring Twenties8-17Softback 1920s Investigator's Companion Vol. ICHA23431993 ChaosiumCall of Cthulhu (Classic)
Background The Roaring Twenties5-14Softback The 1920s Investigator's CompanionCHA23701997 ChaosiumCall of Cthulhu (Classic)
Background The Roaring Twenties160-207Hardback Investigator's HandbookCHA231362015 ChaosiumCall of Cthulhu (Classic)
Background Rob MacIntyre, Adventurous Brewmaster1PDF Tuesday Terribles6Oct 2007 ChaosiumCall of Cthulhu (Classic)
Card Robert Blake's StudyLocation (C)Cards LimitedCAO1300-11996 ChaosiumMythos
Card Robert BlochAlly (U)Cards New AeonCAO1311-11997 ChaosiumMythos
Rules Robert E Howard's Hyborea45-52Softback Gods, Demi-Gods and Heroes20061976 TSRDungeons and Dragons
Card Robert FriendlyCharacter (F)Cards Denizens of the UnderworldCT622014 Fantasy Flight GamesCall of Cthulhu LCG
Card Robert Harrison BlakeAlly (R)Cards LimitedCAO1300-11996 ChaosiumMythos
Card Robert MarshAlly (U)Cards LimitedCAO1300-11996 ChaosiumMythos
Card Robert W. ChambersAlly (C)Cards Cthulhu RisingCAO1302-11996 ChaosiumMythos
Scenario Robinson Gruesome33-45PDF Monophobia10012010 Unbound PublishingCall of Cthulhu (Classic)Oceania
Card RoccoBoardgame Fight or Flight Promos2021 CMON LimitedCthulhu: Death May Die
Scenario The Rockdale DeadPDF The Rockdale DeadMay 2022 ChaosiumCall of Cthulhu (Classic)
Background Rocker excerptFeb 1997Website rpg.net Self PublishedCall of Cthulhu (Cyberpunk)
Rules Rocket Launchers181-184Softback Investigator Weapons Volume 2: Modern Day60-IHB022015 Sixtystone PressCall of Cthulhu (Now)
Scenario The Rocky Vale Horror1-15PDF The Rocky Vale Horror2003 Self PublishedCall of Cthulhu (Now)New York State; 2003
Card Rod SerlingAlly (F)Cards Seattle Self PublishedMythos
Rules Rogues Gallery1-14PDF Rogues Gallery2009 Self PublishedYellow Dawn
Boardgame Roland Banks Promo CardsBoardgame The Dirge of ReasonNAH112018 Fantasy Flight GamesArkham Horror: The Card Game
Background The Role of Prohibition5Softback King of ChicagoCHA23481994 ChaosiumCall of Cthulhu (Classic)
Background Role of Religion11-12Softback Dark CrusadesCHA04142013 ChaosiumCall of Cthulhu (Dark Ages)
Rules Roleplaying35-70Softback Secrets of JapanCHA23922005 ChaosiumCall of Cthulhu (Classic)
Rules Roleplaying5-34Softback Cthulhu Live: Player's Companion00062000 Fantasy Flight GamesCall of Cthulhu (Classic)
Rules Roleplaying in Achtung! Cthulhu17PDF Achtung! Cthulhu Basic RulesMUH00103422023 Modiphius EntertainmentAchtung! Cthulhu
Rules Roleplaying in the Fate97-99Softback Delta Green Eyes OnlyPAG10132007 Pagan PublishingCall of Cthulhu (Delta Green)
Rules Roleplaying, Hoaxes and You18-22Magazine White Wolf48Oct 1994 White Wolf GamesCall of Cthulhu (Classic)
Boardgame Roll for Great Old OnesBoardgame Roll for Great Old Ones2022 Hodari SpieleRoll for Great Old Ones
Card Roll the DiceEvent (F)Cards Denizens of the UnderworldCT622014 Fantasy Flight GamesCall of Cthulhu LCG
Scenario RollersDec 2017Website Reckoning of the Dead Self PublishedCall of Cthulhu (Atomic)California; Summer; 1967
Card Roman CastevetAlly (F)Cards Rosemary's Baby Self PublishedMythos
Background The Roman Legions145-147Softback Cthulhu InvictusCHA231152009 ChaosiumCall of Cthulhu (Classic)
Background The Roman Legions107-114Softback The 7th Edition Guide to Cthulhu InvictusGGP18012018 Golden Goblin PressCall of Cthulhu (Invictus)
Card Roman PolanskiAlly (F)Cards Rosemary's Baby Self PublishedMythos
Background Roman Provinces115-128Softback The 7th Edition Guide to Cthulhu InvictusGGP18012018 Golden Goblin PressCall of Cthulhu (Invictus)
Rules Roman Siege Weapons89-90Softback Cthulhu InvictusCHA231152009 ChaosiumCall of Cthulhu (Classic)
Background Roman Slang4-5PDF Lux in TenebrasMRP00062011 Miskatonic River PressCall of Cthulhu (Invictus)
Scenario The Romanian ContractPDF The Romanian ContractMay 2021 ChaosiumCall of Cthulhu (Now)Romania; 1920s
Scenario The Romanian ImperativeHardback Behind Enemy Lines2022 Modiphius EntertainmentAchtung! CthulhuRomania; February; 1941
Rules The Ronin1-2PDF The Ronin2011 Self PublishedCthulhuTech
Card The Roof of the BradfordEvent (F)Cards Rosemary's Baby Self PublishedMythos
Scenario The Roof of the World101-134Softback Shadows of AtlantisMUH01022CS2015 Modiphius EntertainmentCall of Cthulhu (Achtung!), Savage Worlds (Achtung!)Tibet; August; 1939
Scenario The RookeryPDF The RookeryJan 2024 ChaosiumCall of Cthulhu (Classic)
Scenario The Room Beyond64-79Softback The Golden DawnPAG10041996 Pagan PublishingCall of Cthulhu (Gaslight)England; 1893; September
Scenario Room for One Less9-21Fanzine Serendipity's Circle8Sum 1996 Self PublishedNephilim, Call of Cthulhu (Now), Shattered Dreams, Chill, The Whispering Vault, Lost Souls1996
Scenario The Room with No DoorsPDF The Room with No DoorsDec 2020 ChaosiumCall of Cthulhu (Classic)Arkham; 1928
Scenario Rooms (The Game)22-69PDF SvalbardTSG00022021 NEVRSvalbardNorway; 1993
Scenario Roots57-84Softback The Things We Leave BehindTTWLB2016 Stygian FoxCall of Cthulhu (Now)
Card Rope & Anchor TavernLocation (U)Cards DreamlandsCAO1307-11997 ChaosiumMythos
Card The Rope And The Anchor TavernSupport (F)Cards Kingsport Dreams2006 Fantasy Flight GamesCall of Cthulhu CCG
Card The Rope And The Anchor TavernSupport (F)Cards Kingsport DreamsCT13e2011 Fantasy Flight GamesCall of Cthulhu LCG
Card Roseland and HillLocation (C)Website Serena's Dojo1999 Self PublishedMythos
Card Rosemary WoodhouseAlly (F)Cards Rosemary's Baby Self PublishedMythos
Card Rosemary's BabyMonster (F)Cards Rosemary's Baby Self PublishedMythos
Scenario The Rosewood Box2007Website talesofterror.net Self PublishedCall of Cthulhu (Classic)
Background The Rosicrucians12-15Magazine Different Worlds38Jan 1985 ChaosiumCall of Cthulhu (Classic)
Card Ross IslandLocation (F)Cards Antarctica Self PublishedMythos
Scenario Rotten Factory21-22Magazine Protodimension4Spr 2010 Kinstaff MediaCall of Cthulhu (Now)
Card Rotting AwayStory (F)Cards Call of Cthulhu The Card GameCT182008 Fantasy Flight GamesCall of Cthulhu LCG
Background A Rough Guide to the 23rd Century16-20Softback Cthulhu RisingCHA03112005 ChaosiumCall of Cthulhu (Rising)
Rules A Rough Guide to the Dreamlands4-5Magazine The Whisperer4Spr 2001 Severn Valley PressCall of Cthulhu (Dreamlands)
Card Round TowerLocation (F)Cards Seattle Self PublishedMythos
Scenario Round6PDF Round6Nov 2021 ChaosiumCall of Cthulhu (Now)
Scenario Route 666: Three Strikes You're OutPDF Route 666: Three Strikes You're OutApr 2021 ChaosiumCall of Cthulhu (Atomic)Chicago; September; 1955
Scenario A Routine Audit2020Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)Washington; 2017
Scenario A Routine Audit (Redux)2021Website The Fairfield Project Self PublishedCall of Cthulhu (Delta Green)2017
Background The Routine AutopsyApr 1995Website hyperwerx.net Self PublishedCall of Cthulhu (Now)
Background The Royal Geographic SocietyWebsite Robo's Mythos CCG Web Page Self PublishedMythos
Background The Royal Geographic SocietyWebsite A Web Page from a Friend Self PublishedMythos
Card The Royal Geographical SocietyAdventure (U)Cards Cthulhu RisingCAO1302-11996 ChaosiumMythos
Background The Royal Geographical Society DeckeZine Chaosium Digestv21n04Aug 1997 ChaosiumMythos
Background RPG Cultural Appropriation42-45eZine RPG Review17Sep 2012 Self PublishedCall of Cthulhu (Classic)
Card Rubbed OutEvent (U)Cards Forbidden Relics2004 Fantasy Flight GamesCall of Cthulhu CCG
Card Rude AwakeningEvent (R)Cards DreamlandsCAO1307-11997 ChaosiumMythos
Scenario Rude Awakening31-65PDF Cohors Cthulhu Quickstart GuideMUH0860101Jul 2023 Modiphius EntertainmentCohors Cthulhu
Card Rue D'AuseilLocation (R)Cards New AeonCAO1311-11997 ChaosiumMythos
Background Rue de reve104-125Softback Dreamhounds of ParisPELGT382014 Pelgrane PressTrail of Cthulhu
Scenario The Rug2004Website talesofterror.net Self PublishedCall of Cthulhu (Classic)
Card Ruined Top-Secret WarehouseLocation (C)Cards New AeonCAO1311-11997 ChaosiumMythos
Card Ruinous Star SpawnCharacter (F)Cards The Sleeper BelowCT632014 Fantasy Flight GamesCall of Cthulhu LCG
Card The Ruins of IbLocation (C)Cards DreamlandsCAO1307-11997 ChaosiumMythos
Card The Ruins of SarnathLocation (C)Cards DreamlandsCAO1307-11997 ChaosiumMythos
Rules Rules74-79Softback Chthonian StarsWDF250202011 WildFire GamesTraveller (Chthonian Stars)
Rules The Rules11-13Softback The Dead White WorldPELGT192011 Pelgrane PressTrail of Cthulhu
Rules The Rules79-80Softback Cthulhu ApocalypsePELGT402015 Pelgrane PressTrail of Cthulhu
Rules Rules and Flavour120-141Softback Zortiander Inc. Catalogue Self PublishedCthulhuTech
Rules Rules and Gear99-142Softback Eldritch SkiesBPI75002012 Battlefield PressEldritch Skies
Rules Rules and Skills48-67Softback Call of CthulhuCHA23861999 ChaosiumCall of Cthulhu (Classic)
Rules Rules and Skills51-74Softback Call of CthulhuCHA231062005 ChaosiumCall of Cthulhu (Classic)
Rules Rules Briefing Summary *61-64PDF Madness and MayhemGSP020042015 Game Soapbox ProductionsMadness and Mayhem
Rules The Rules Files: Travel Between RegionseZine Chaosium Digestv16n12Oct 1996 ChaosiumMythos
Rules Rules for Equipment and Vehicles104-108PDF APOCTHULHUcr61002020 Cthulhu RebornAPOCTHULHU
Rules The Rules Margin5eZine The Killing Fields92021 RPG BrisbaneCall of Cthulhu (Classic)
Rules Rules of Play14-54Softback Lovecraftesque2016 Black Armada GamesLovecraftesque
Rules The Rules of Savage Engagement171-183Softback Keeper's Guide to the Secret WarMPS01032CS2013 Modiphius EntertainmentSavage Worlds (Achtung!), Call of Cthulhu (Achtung!)
Rules Rules of the Game75-132Softback The Fall of Delta Green2018 Pelgrane PressThe Fall of Delta Green
Rules Rules of the Steam-Powered Age8-13Softback QueensguardCHA03822009 ChaosiumCall of Cthulhu (Steampunk)
Rules Rulesbook Additions137-145Hardback Call of CthulhuCHA2317-H1986 ChaosiumCall of Cthulhu (Classic)
Card Rum RunnerCharacter (U)Cards Forbidden Relics2004 Fantasy Flight GamesCall of Cthulhu CCG
Boardgame Rumble in R'lyehBoardgame Rumble in R'lyeh2012 Cryptozoic EntertainmentPenny Arcade: The Game
Track Ruminations03:08Recording Four ShadowsPELGT052008 Pelgrane PressTrail of Cthulhu
Card RumormillEvent (F)Cards That Which ConsumesCT452011 Fantasy Flight GamesCall of Cthulhu LCG
Scenario The Run Away Part 1: AlexandriaSep 2014Website shoggoth.net Self PublishedCall of Cthulhu (Invictus)Egypt
Scenario The Run Away Part 2: The Oasis of Ket-SeptiSep 2014Website shoggoth.net Self PublishedCall of Cthulhu (Invictus)Egypt
Rules Run for it!62-63Magazine Bayt al Azif1Oct 2018 Bayt al Azif IncCall of Cthulhu (Classic)
Track Run!01:58Recording Eternal Lies SuitePELGT172010 Pelgrane PressTrail of Cthulhu
Scenario RunawaysWebsite RPG Archive Self PublishedCall of Cthulhu (Now)Florida; 1990s
Rules Rune Mysteries Revealed54-55, 57-58Magazine Pyramid11Jan 1994 Steve Jackson GamesNone
Background Rune Mysteries Revealed Again!80-81, 83Magazine Pyramid13May 1995 Steve Jackson GamesNone
Rules Running a Parapsychological Campaign61-68Softback Parapsycologist's HandbookCHA00852003 ChaosiumCall of Cthulhu (Classic), Call of Cthulhu (Gaslight), Call of Cthulhu (Now)
Rules Running a Poltergeist Scenario76-82Softback Parapsycologist's HandbookCHA00852003 ChaosiumCall of Cthulhu (Classic), Call of Cthulhu (Gaslight), Call of Cthulhu (Now)
Rules Running Dark Crusades13-16Softback Dark CrusadesCHA04142013 ChaosiumCall of Cthulhu (Dark Ages)
Rules Running Delta Green312-316Softback Delta Green: Targets of OpportunityPAG21082010 Pagan PublishingCall of Cthulhu (Classic)
Fiction The Running Man75-80Softback Green and Pleasant LandCHA23201987 ChaosiumCall of Cthulhu (Classic)
Rules Running Military Games46-48Softback As Above, So BelowCB712092015 Cubicle 7Call of Cthulhu (Laundry)
Rules Running Political Games71-75Softback As Above, So BelowCB712092015 Cubicle 7Call of Cthulhu (Laundry)
Rules Running Pulp Games90-98Softback Pulp CthulhuCHA231072016 ChaosiumCall of Cthulhu (Classic)
Rules Running the Game69-82Softback Cthulhu LiveSKP06022006 Skirmisher PublishingCall of Cthulhu (Classic)
Rules Running the Game38-47Hardback Wrath of the GodsEW022015 Fantasy Flight GamesThe End of the World
Rules Running the Game31-56Hardback Fearful SymmetriesPELGT452021 Pelgrane PressTrail of Cthulhu
Rules Running the Game14-17Softback R'lyehwatch2023 Third Chair GamesR'lyehwatch
Rules Running the GamePDF Cthulhu UnleashedMar 2024 Vindicta RPGsCthulhu Unleashed
Background Running the Scenario16-31PDF InversionFeb 2024 ChaosiumCall of Cthulhu (Now)
Rules RusalkaOct 2014Website shoggoth.net Self PublishedCall of Cthulhu (Classic)
Card Rush to JudgementEvent (U)Cards Forgotten Cities2005 Fantasy Flight GamesCall of Cthulhu CCG
Card Rush WeekEvent (F)Cards Aspirations of AscensionCT432011 Fantasy Flight GamesCall of Cthulhu LCG
Background The Russian Civil War6-7Magazine The Unspeakable Oath7Jan 1993 Pagan PublishingCall of Cthulhu (Classic)
Scenario The Russians Are Coming!!4-11PDF The Russians Are Coming!!Oct 2024 ChaosiumCall of Cthulhu (Strange Aeons) [1961]Alaska; October; 1961
Scenario Rusty ColdPDF Rusty ColdApr 2021 ChaosiumCall of Cthulhu (Strange Aeons)Winter; 1992
Card Ruthless FanaticCharacter (C)Cards Eldritch Edition2005 Fantasy Flight GamesCall of Cthulhu CCG
Card Ruthless FanaticCharacter (F)Cards Eldritch Edition Premium Starter Set2005 Fantasy Flight GamesCall of Cthulhu CCG
Card Ruthless FanaticCharacter (F)Cards Eldritch Edition Premium Starter Set2005 Fantasy Flight GamesCall of Cthulhu CCG