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Want to covert an older Call of Cthulhu product for 7th Edition? Don't have time to fiddle through your copy of the Keepers Rulebook?
Get all the information you need from a single free PDF.
These pages are taken from the Call of Cthulhu 7th Edition Keepers Rulebook. You can get the full book here. ... [click here for more] |
Chaosium |
FREE
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Horror Roleplaying in Ancient Rome
Here are new beasts and creatures for use with the Cthulhu Invictus setting of the Call of Cthulhu role-playing game.
THIS IS A DOWNLOADABLE PRODUCT. Two 8.5x11" pages. ... [click here for more] |
Chaosium |
FREE
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Horror Roleplaying in Ancient Rome
Here are scenario seeds for use with the Cthulhu Invictus setting of the Call of Cthulhu role-playing game.
THIS IS A DOWNLOADABLE PRODUCT. One 8.5x11" page. ... [click here for more] |
Chaosium |
FREE
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Horror Roleplaying in Ancient Rome
Notes on Roman Patronage for use with the Cthulhu Invictus setting of the Call of Cthulhu role-playing game.
THIS IS A DOWNLOADABLE PRODUCT. One 8.5x11" page. ... [click here for more] |
Chaosium |
FREE
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Horror Roleplaying in Ancient Rome
Non-player characters for use with the Cthulhu Invictus setting of the Call of Cthulhu role-playing game.
THIS IS A DOWNLOADABLE PRODUCT. Two 8.5x11" pages. ... [click here for more] |
Chaosium |
FREE
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The Second Cthulhu Companion
This second Call of Cthulhu companion answers questions common to Call of Cthulhu games, and reveals ancient linguistic traces of the dread Cthulhu cult among various cultures.
It then summarizes all Mythos spells printed in Shadows of Yog-Sothoth, The Asylum, the Cthulhu Companion, The Fungi From Yuggoth, Curse of the Chthonians, Trail of Tsathogghua,... [click here for more] |
Chaosium |
$3.50
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Ghastly Adventures & Erudite Lore
This book is composed of submissions to Different Worlds magazine and other Cthulhoid Chaosium projects. The Different Worlds readers’ enthusiasm for the Cthulhu Mythos resulted in many excellent submissions, some of which appear, with permission, within these pages.
The contents of this supplement are quite varied. The first two entries... [click here for more] |
Chaosium |
$3.95
|
We all hold a few dark, deep secrets close to their hearts. Some of our secrets are small and would seem unimportant if they were exposed to the light of day. Others are big and could change the world. This book is about secrets that have been allowed to fester and darken in the shadows. What was hidden in Robert Monroe-Tylor's coffin? What horror left Jason Andrews to die a sickening death? Why does... [click here for more] |
Chaosium |
$4.95
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Tsathogghua's curse awaits the unwelcomed investigators of the occult and unknown. What grim secret lurks on the sterile Greenland icecap? What living horror grows behind the "Bigfoot" legend? TRAIL OF TSATHOGGHUA contains a mini-campaign in two scenarios as well as a third, unconnected, scenario— "The Haunted House."
This scenario pack is suitable for beginning keepers and investigators.... [click here for more] |
Chaosium |
$4.95
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All About Monstres
This volume contains dozens of new races and individual creatures for use with the Call of Cthulhu roleplaying game. Included here are the following categories: Outer Gods, Elder Gods, Great Old Ones, Great Ones, Avatars, Servitor Races, Independent Races, Fabulous Creatures, and Unique Entities.
The books is divided into the following sections:
About Monstres,
Chaosium... [click here for more] |
Chaosium |
$4.95
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The Aeon of the Elder Party Has Arrived!
A 9th Level Beer and Pretzels Role-Playing Game.* Have you lost all hope in the future? Tired of Big Government? Sick of greedy, corrupt officials? You are not alone! Become one with the Elder Party! The greatest evil in the universe just sunk to new depths, and has announced his intention to enter politics. Don't settle for the lesser evil! Heed the... [click here for more] |
Chaosium |
$7.95 $4.99
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Three Scenarios for Call of Cthulhu
A disappearance.
A plea for help.
The strike of sudden madness.
Fear forms where shadows begin. The Cthulhu Mythos hovers at the edges of reason and sanity. With their courage and intelligence, investigators can dare the unknown and the unknowable, and roll back a little of the darkness.... [click here for more] |
Chaosium |
$5.95
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Hot Tips, Secret Info, & Sure-Fire Rules
Are there flashlights in the 1920s? How about flashbulbs? What can your licensed private-eye do? Can your investigators buy a machine gun?
Too often, Call of Cthulhu investigators find themselves not only baffled by the mysteries of the Mythos, but baffled as well by day-to-day life in America during the Roaring Twenties.
Discover... [click here for more] |
Chaosium |
$5.95
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Occupations & Skills
What, You Want To Live Forever?
Oh, just a little longer and a bit more pleasantly in the face of Mythos horrors. Let this book be your guide.
On becoming an investigator contains valuable tips that can help your investigator reach middle age, and possibly even those golden years. The Occupations Section contains 140 different possible 1920s occupations... [click here for more] |
Chaosium |
$5.95
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Two Gangland Adventures for 1920's Call of Cthulhu.
INVESTIGATING LANZETTI MURDER STOP ONTO SOMETHING BIG STOP NEED YOUR ASSISTANCE STOP COME TO CHICAGO WITH INVESTIGATIVE TEAM AS SOON AS POSSIBLE STOP SULLIVAN
—Urgent telegram from Jack Sullivan
Chicago in the Roaring Twenties: crime is rampant, it os a world of violence, intimidation, bribery... [click here for more] |
Chaosium |
$5.95
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All About Monstres
This volume contains dozens of new races and individual creatures for use with the Call of Cthulhu roleplaying game. Included here are the following categories: Outer Gods, Elder Gods, Great Old Ones, Great Ones, Avatars, Servitor Races, Independent Races, Fabulous Creatures, and Unique Entities.
These monstrous creations have been collected from fiction spanning... [click here for more] |
Chaosium |
$5.95
|
A Resection of Time is a short campaign for Call of Cthulhu set in the modern day. It begins in early April, in San Francisco, and ends a little later in the steamy jungles of Belize, in Central America. Before plunging into the dark heart of the ancient Mayan world, the investigators also travel to Los Angeles and shadowy Arkham.
The details of Mayan architecture, culture, epigraphy,... [click here for more] |
Chaosium |
$6.50
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The ideas presented in this book attempt to be both mundane and fantastic at the same time— plausability is the key.
It is in the details that the horror lies, because it is in the credibility of the details that the fantastic can rise and stand.
This, then, is a book of details, most mundane, some fantastic. They have but one purpose—that of bringing Lovecraft's horror home to us here and... [click here for more] |
Chaosium |
$6.95
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The University Guidebook
The world sees Miskatonic University as a solid New England institution. Its professors and departments are on par with those of any Ivy League school—among the best in the nation.
Founded phsthumously in 1765 by seacaptain Jeremiah Orne, Miskatonic University grew from the acquired assets, and debts, of ailing Arkham College. Orne laid claim to the older 1690 institute... [click here for more] |
Chaosium |
$6.95
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WWI Mythos Action with the Lost Batallion
THE DATE IS OCTOBER 2, 1918. In France, soldiers huddle in hastily-dug trenches, faith their only protection against the never-ending artillery barrage. It is the time of World War I — the Great War — when mankind proves itself capable of atrocities never before conceived. As above, so below. Beneath the cracked and shattered soil of the Argonne Forest... [click here for more] |
Chaosium |
$6.95
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Bizarre Events at a U.N. Moonbase, Pestilence and Plague in Elizabethan London, Secrets of the Spanish Inquisition
Times of Terror During the month of January, 1603, London is in the grip of a bitterly cold winter. The air is crisp with a heavy frost that is slow to thaw. Rumors abound that the plague is once more abroad in the city -- knowledge that weighs heavily on the populace.... [click here for more] |
Chaosium |
$6.95
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What secrets lie within the Devil’s Triangle? Why was the Mary Celeste abandoned after is passed through the Triangle's waters? What caused the disappearance of an entire flight of Avengers in 1945? Why do electronics fail in the Triangle for no reason?
Now the answeres at last can be revealed. The Bermuda Triangle is a 1990’s sourcebook centered around the famous mystery of... [click here for more] |
Chaosium |
$6.95
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A dramatic chain of unsettling events over the past ten years leads to wholesale madness.
A complete campaign in three chapters
detailed background for important characters
extensive, deluxe player handouts
... [click here for more] |
Chaosium |
$6.95
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GUIDELINES FOR PLAYING CALL OF CTHULHU IN SEVEN DIFFERENT ERAS
On release back in 1981, the initial setting of Call of Cthulhu focused upon the “classic” 1920s-era of the early twentieth century — the time of H.P. Lovecraft. It did not take long for players to realize the potential of the game —that it could adapt easily to other time periods.
Over the last thirty-plus... [click here for more] |
Chaosium |
$7.47
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This dangerous investigation is set in Canada, in the 1920s.
The investigators meet the powerful Lavoie family of Montreal and learn what imperils them. They glimpse a strange cult that now thrives in Quebec and the ancient nemesis that guides it. They come to understand the horrible significance of a corpse discovered in the foundations of a former seminary. They at last perceive the true motives... [click here for more] |
Chaosium |
$7.50
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The Essential Companion to the 5th edition of Call of Cthulhu Included in this packet are these valuable play-aids of use to players and keepers:
A new "Lovecraft Country" Adventure, "The Little People" set in fabled Arkham, Massachusetts, was specially written for this package, and is suitable for both beginning and experienced players.
A... [click here for more] |
Chaosium |
$7.95
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THE GREAT OLD ONES consists of a set of six scenarios for Call of Cthulhu: “The Spawn’’ is in the Wild West, with Indians, Wobblies, and bad guys; “Still Waters” is an adventure for people who hate to lend books; “Tell Me, Have You Seen the Yellow Sign?" makes a symbolic stop-over in New Orleans; “One In Darkness” features South Boston hoodlums; “The Pale... [click here for more] |
Chaosium |
$7.99
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The batle against the horrors of the myihos often leaves an investigator dead or insane. In either case, a paper trail has formed, one that can lead new, ignorant investigators into realms of unspeakable evil.
This supplement contains a large number of useful forms for use in a Call of Cthulhu® game. Death certificates, insanity certificates, patient records, and even fingerprint forms are... [click here for more] |
Chaosium |
$8.22
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An Essential Guide for Players
When faced with the horrors of the Cthulhu Mythos, investigators need all the help that they can get. This essential player's aid for Call of Cthulhu provides it.
The 1920s Investigator's Companionis split into four sections. "The Roaring Twenties" details life in the 1920s, from a general historical overview to listing of favorite songs, books, and films... [click here for more] |
Chaosium |
$8.99
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13 Titillating Tales
"...and I would have got away with it too if it hadn't been for you meddling investigators and your stupid dog!"
—Frustrated Cultist upon arrest by local authorites.
Do you have gaming buddies coming over tonight and don't know what to wear, or more importantly what game you'll run? Blood Brothers to the rescue! We'll provide you with... [click here for more] |
Chaosium |
$9.50
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9 Glimpses of Horror
"Ooh, those A-li-ens, A-li-ens On a weekend from Mars They liked our girls and our cars- Ooh, those A-li-ens, A-li-ens" —From the Blood Brothers 2 soundtrack.
They're B-movies, they're bad, and they're back for more laughs. Nine scenarios which have more to do with bad horror films than with H.P. Lovecraft. Microwave the popcorn, call your... [click here for more] |
Chaosium |
$9.50
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Explore the occult in 1890s England. Particularly thorough background notes and unusual plots help keep the investigators on their toes. Streamlined investigator creation for the era: owning Gaslight is not necessary to use this book.
... [click here for more] |
Chaosium |
$9.95
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Fatal Experiments is a collection of three independent 1920's adventures for the Call of Cthulhu roleplaying game. Two of the three scenarios are suitable for both beginning and experienced players, making this book a perfect companion for first-time buyers of the Call of Cthulhu game system. The remaining adventure is unusually dangerous -- to be played only by experienced, follhardy... [click here for more] |
Chaosium |
$9.95
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Aircraft - Trains - Automobiles - Dirigibles - Diving Suits - Canal Boats - Armored Cars - Elephants - Siberian Sledges The golden age of travel occurred between 1880-1939. As traveling times shrank, destination became more important than journey, a notion now so conimon-sensical that we blink to think that the reverse was once truer. FEARFUL PASSAGES contains nine adventures set in... [click here for more] |
Chaosium |
$9.95
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Tales of the Miskatonic Valley is the fourth book in the Lovecraft Country series and contains six adventures set in communities and rural areas along H.P. Lovecraft’s Miskatonic River. Although intended to compliment earlier releases - H.P. Lovecraft's Arkham Unveiled, H.P. Lovecraft's Dunwich, and Kingsport, City in the Mists — these adventures... [click here for more] |
Chaosium |
$9.95
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A 1920's Sourcebook to the Crescent City
NEW ORLEANS IN THE 1920s is a city of many faces. The gaiety of Mardi Gras is juxtaposed with the rampant corruption that earned New Orleans the nickname "The City That Care Forgot." The genteel decline of the French Quarter, the location of the city's original settlement, stands in contrast to the rich opulence of the Garden District, where the Americans... [click here for more] |
Chaosium |
$9.99
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The Wicked Eye of Sight
A 1990s Campaign for Call of Cthulhu
The Graham Westlake Foundation sponsors the International Symposium on Unexplained Phenomena. This year, the fortieth annual symposium takes place in the Pacific island nation of Tonga. The investigators are among the attendees. There, they encounter evidence of phenomena they know only too well.... [click here for more] |
Chaosium |
$9.99
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Six Classic Explorations of the Unknown, the Deserted, and the Insane
IN DIM, FORGOTTEN RECESSES of the world lurk mind-twisting horrors. Through the use of human agents these horrors work to thwart mankind’s destiny.
However, not all of these human agents are willing partners. Many times have the monsters resorted to subtlety and intrigue to further their ends, rather than gross displays... [click here for more] |
Chaosium |
$10.95
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A GLOBAL CAMPAIGN TO SAVE MANKIND!
The Silver Twilight is an international organization dedicated to the destruction of the human race. As brave Investigators, you must piece together passages from esoteric books, shards of ancient artifacts, and puzzling letters to discover the Silver Twilight's loathsome goals. This multi-chapter adventure begins in Boston and spans the globe. The Investigators must... [click here for more] |
Chaosium |
$10.95
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Herald of the End of Time
Astronomers have theorized that our sun is not alone in its journey areound the galaxy, but is accompanied by an unknown second star of dim radiance. This second star, while perhaps invisible from Earth even with the finest optics, would periodically pass close enough to our solar system to have far-reaching effects upon the evolution of this planet.
This... [click here for more] |
Chaosium |
$10.95
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A Race to Save Humanity from a Dark Future
THE LOVECRAFTIAN MYTHOS is populated by many creatures, both singular entities such as Cthulhu and Hastur, and creatures who number in the millions. The shan are an ancient, insect-like alien race fleeing a destroyed homeworld. Forced into a nomadic life they are scattered throughout space. Aeons ago a number of shan arrived on Earth, but... [click here for more] |
Chaosium |
$10.95
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Nightmares Unraveled in Six Scenarios
Perched on a bleak and inhospitable rock off the coast of Scotland, the Hallowsay Light has guided sailors for over seventy years. Now its beacon has gone inexplicably dark, imperiling the ships that ply the waters of the North Atlantic. The news has reached the lighthouse tender Helios, already steaming toward the island of Hallowsay for its fortnightly... [click here for more] |
Chaosium |
$10.95
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CTHULHU NOW includes four roleplaying adventures, "The City in the Sea," The Killer Out of Space," The Evil Stars," and "Dreams Dark and Deadly." Background essays provide new skills and occupations, up-to-date cash-flow information, an elaborate firearms article (and a foldout illustrating contemporary firearms), active and passive night-vision equipment, a survey of forensic pathology from... [click here for more] |
Chaosium |
$11.95
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Blasphemous Knowledge, Forbidden Secrets, and Handy Information.
The Keeper's Companion vol. 1 is an invaluable resource for Call of Cthulhu keepers. New material includes advice for new keepers, a lengthy study of Mythos artifacts, a learned discussion of many occult books, an up-to-the-moment description of every facet of forensic medicine, a thorough revision and expansion of the game... [click here for more] |
Chaosium |
$11.95
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Prohibition, Firearms, Tomes & Creatures
New to Call of Cthulhu? A battle-scarred veteran of many campaigns? Here are essential background articles useful to most keepers.
"The History Behind Prohibition" — A lengthy article bringing anti-alcohol advocates, law enforcement, gangsters, rum-runners, and consumers into focus. Lots of good stories.
"The Keeper's Master List of Call of Cthulhu... [click here for more] |
Chaosium |
$11.95
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Eldritch Explorations in the Ancient Kingdom
WELCOME TO THE SECRETSOF MOROCCO! This book provides players with a civil, geographical, cultural, political, and Mythos tour of Morocco during the 1920s and 1930s. Morocco will seem like another world, with its cultural differences and its customs being foreign to many Westerners of the 1920s.
The country is vast, and not every city can be... [click here for more] |
Chaosium |
$11.99
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Modern Struggles Against Hidden Powers
"Who is among us? Who? I cannot utter a blessing while he is here. I cannot feel one. Where he treads, the earth is parched! Where he breathes, the air is fire! Where he feeds, the food is poison! Where he turns, his glance is lightning! Who is among us? Who?"
— Melmoth the Wanderer
Three mini-campaigns set in modern New... [click here for more] |
Chaosium |
$11.99
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Return to the Forgotten Village
For classic Call of Cthulhu and d20 Cthulhu. Dunwich is a small village located along the Miskatonic, upriver from Arkham. Until 1806, Dunwich was a thriving community, boasting many mills and the powerful Whateley family.
Those among the Whateleys came to know dark secrets about the world, and they fell into the worship of unwholesome creatures from other... [click here for more] |
Chaosium |
$12.95
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Call of Cthulhu Roleplaying in the Year 1000 A.D.
The Dark Ages world is filled with life, death, and the pain of old age. Vengeful hordes wash across the world. Petty warlords fight among themselves like ravenous dogs. Disease runs rampant. Illiterate city-folk and simple farmers dread that which lurks in the dark. And in the greatest abbeys, a few know of forbidden books that speak of blasphemy... [click here for more] |
Chaosium |
$12.99
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The City that Never Sleeps
During the day ships, barges, tugs, and pleasure boats ply New York’s bay and rivers, dashing beneath bridges and disgorging thousands of people upon the city's shores. Each brings hope and dreams of a new life. At night the city blazes with myriad lights, diamonds dazzling in buildings that scrape the sky. Music, food, dance, dark rituals, and clandestine... [click here for more] |
Chaosium |
$12.99
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