| Product Name |
Publisher |
Price |
 Terrifying Tools and Reality-Wrenching Rules for Players and Keeper Alike
Call of Cthulhu is, of course, an excellent role-playing system and one that easily lends itself to expansion in many areas. In keeping with that spirit, this book explores a number of optional expansions to the original Call of Cthulhu rules-primarily in the areas of new, specialized skills; new ... [click here for more] |
Chaosium |
$19.00 $10.45
|
 Revisiting the Legend-Haunted City
ARKHAM NOW updates to modern times the famous and fabled city of Arkham for the Call of Cthulhu roleplaying game.
Most residents believe there is only one horror lurking in this legendary haunted town — the urban sprawl slowly eroding Arkham's old New England beauty. Rushing by neon signs and mega-marts to obtain even more material... [click here for more] |
Chaosium |
$27.95 $15.37
|
FOUR NATIONS, TWO SIDES, ONE CITY.WHO DO YOU BELIEVE?
A setting for different BASIC ROLEPLAYING genres. Includes information on life in the city during the cold war, key locations, and special organizations. Battle spies, assassins, cultists and the Dark Herald Kototh. A great back-drop for espionage adventures in the 1960s style, and silver age superhero action!
NOTE: th... [click here for more] |
Chaosium |
$21.95 $12.07
|
 Evil Cults for Call of Cthulhu
This book contains a collection of modern-day organisations for use in your Call of Cthulhu games. The Church of a Thousand Tomorrows can nuke you from orbit, while the Sufferers' Guild could be brought down with a few well-placed phone calls. More importantly, all the personalities described have reasons for the things the... [click here for more] |
Chaosium |
$18.00 $9.90
|

Autumn — the time of the Festival of the Dead, when the veil between the worlds is thinnest and prayers to ancestors easiest made. Pumpkin cakes are left in the Ancestors' Niche in every house, and children tie black and orange ribbons to the doors and put candles in the windows of their houses so their dead ancestors can easily find their way home.
It is a quiet time, afte... [click here for more] |
Chaosium |
$18.95 $10.42
|
Call of Cthulhu in the Great Depression
Experts predict that the want and suffering of the Great Depression will create "a generation of cannibals." Panicked people flee their homes to escape a devastating invasion and poison gas attack. Life comes to a standstill as people watch a strange dust descend from the sky.
The spread of the Great Depression and the first ru... [click here for more] |
Chaosium |
$14.95 $8.22
|
Horror Roleplaying in 1890s England
IN THE 1890s, Cthulhu and his minions share the globe with the mighty British Empire. But they owe allegiance to an empire of their own — a dark and cruel design on ownership of the world and on the dreams of humanity. Even among the green fields of rural England, only thoughtful and energetic intervention keeps the shadows at bay. ... [click here for more] |
Chaosium |
$28.95 $15.92
|
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... [click here for more] |
Chaosium |
$7.95 $4.37
|
Horror Roleplaying in Ancient Rome
ROMAN CHILDREN TREMBLE in their beds as their mothers tell them stories of Medusa, the Hundred-Handed Ones, and the War of the Titans. They pray that the Fates have woven a long skein for them, free from encounters with the Minotaur and Cerberus. Little do they know that things more horrible than the creatures of myth and lege... [click here for more] |
Chaosium |
$26.95 $14.82
|
 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
|
The Mythos Threatens Ancient Rome
AS ROME’S INFLUENCE SPREADS across the known world, so too spreads the worship of its gods. Roman leaders know that converting the people of conquered regions to the state religion makes them easier to control. But some gods have been worshipped longer than Rome has existed, and their supplicants won’t easily change allegiances. ... [click here for more] |
Chaosium |
$12.95 $7.12
|
 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
|
 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
|
 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
|
Cthulhu Live is a full evening's worth of fun every time it is played. There are no winners and no losers, only a group of friends having a good time. The participants are both actors and audience. Cthulhu Live is set in the universe of eldritch horror created by Howard Phillips Lovecraft - typically play alternates between horror and comedy, as the participants put different spin... [click here for more] |
Chaosium |
$16.95 $9.32
|
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,... [click here for more] |
Chaosium |
$21.95 $12.07
|
Call of Cthulhu Roleplaying in the 23rd Century
It is the year 2271.
The future is a dark and dangerous place. Outer space is the new frontier - humanity exploits the galaxy for its own ends. It is more than a hundred and fifty years since the United Earth Federation began to colonise the solar system and beyo... [click here for more] |
Chaosium |
$17.00 $9.35
|
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 |
$18.95 $10.42
|

Gazing into the Dark Mirror
This is the very worst wickedness, that we refuse to acknowledge the passionate evil that is in us. This makes us secret and rotten."-D. H. Lawrence
CALL OF CTHULHU pits a dedicated group of investigators (controlled by the players) against a whole host of ills and evils. Sometimes the investigators are simply clearing up a localised problem wher... [click here for more] |
Chaosium |
$13.00 $7.15
|
Basic Roleplaying Adventures in the Weird Wild West
Devil’s Gulch is a typical town of the American Old West from 1870 through 1885. It is a collection of buildings set along a single dirt road with side streets where private residences are found. It features saloons, a bank, a general store, and a church. Most buildings are made of wood, though some bo... [click here for more] |
Chaosium |
$16.95 $9.32
|

The Second Cthulhu Invictus Companion
As a rule, men worry more about what they can't see than about what they can.
—Julius Caesar
Fear of the unknown is mankind's earliest fear, his most basic. What is out there in the dark?... [click here for more] |
Chaosium |
$14.95 $8.22
|
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, Tra... [click here for more] |
Chaosium |
$5.95 $3.27
|
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... [click here for more] |
Chaosium |
$10.95 $6.02
|
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 ... [click here for more] |
Chaosium |
$10.95 $6.02
|
A SOURCEBOOK FOR CTHULHU RISING —CALL OF CTHULHU ROLEPLAYING IN THE 23RD CENTURY
By the late 23rd century, the gas giant Jupiter and its sprawling system of rings and moons is home to a colonial population of millions.
Over the century and a half since the colonisation of the outer planets began in earnest, an aggregation of settlements and outposts have developed t... [click here for more] |
Chaosium |
$16.95 $9.32
|
 A Guide to the United Kingdom in the 1920s and 1930s
1921: the Empire upon which the sun never sets. From east to west, Dominions and colonies, from far-flung Hong Kong to Jamaica, India to Canada, stretch to encompass a quarter of the world's land and a quarter of its population. Upon every ocean a ship hoisting the Union Jack and armed with sixteen-inch guns, able to blow any other na... [click here for more] |
Chaosium |
$21.95 $12.07
|
That is not dead which can eternal lie, and with strange aeons even death may die.
—H.P. Lovecraft
Creatures, Gods, & Forbidden Knowledge
Here are those things which can “eternal lie”, and which have lived beyond human understanding for strange aeons. The Cthulhu Mythos is comprised of a complex and broad group of sometimes-contradictory entities, powers, ... [click here for more] |
Chaosium |
$34.95 $19.22
|
 The First Cthulhu Invictus Companion
In suus domus procul R'lyehmortuus Cthulhu exspecto somnium—Graffiti found scrawled throughout Pompeii following an earthquake, August 20th, 79 AD
The translation of the above graffiti should be well known to most fans of the Cthulhu Mythos. It is "In his house at R'lyeh, dead Cthulhu waits... [click here for more] |
Chaosium |
$13.95 $7.67
|
Perilous Adventures to Thwart the Dark God
At last the stars are almost right!
Soon Nyarlathotep's plans will come to fruition. Then the world will be changed irrevocably — but not quite yet. Pesky human investigators have learned much. Now they must survive long enough to make sense of what they know, and take resolute action.Masks of Nyarlathotep is a ... [click here for more] |
Chaosium |
$34.95 $19.22
|
A Handbook to the Pride of Arkham
MISKATONIC UNIVERSITY is a small, seemingly typical New England college nestled in the bosom of conservative Arkham, Massachusetts. A poor cousin to such hallowed institutions as Harvard, Brown, and Princeton (the term “Ivy League” won’t come into use until 1936), Miskatonic nonetheless offers coveted degrees in a wide variety of ... [click here for more] |
Chaosium |
$29.95 $16.47
|
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... [click here for more] |
Chaosium |
$12.95 $7.12
|
 A Study of the Religion, People, and Mythology of Tibet
Though not directly mentioned by H.P. Lovecraft in any of his stories, there are several references throughout his works to the Himalayas. Like most young men with a sense of adventure during the late 1800's and early 1900's, Lovecraft would have been aware of any news stories coming out of Tibet. It was a mysterious country-until 1984 vi... [click here for more] |
Chaosium |
$16.00 $8.80
|
An Optional Magic Systemfor Call of Cthulhu and Basic Roleplaying
For decades magic has been a backbone and prominent feature of Call of Cthulhu. Whether it is a race to stop the summoning of some god or alien, the need to communicate with things on other worlds by means of arcane scripture, or solving murders done with hexes rather than guns, magic has been inevitably wed... [click here for more] |
Chaosium |
$19.00 $10.45
|
Science-Fiction Rules and Adventures for Call of Cthulhu
This work provides science fiction rules for Call of Cthulhu as well as four adventures set in the future. Naturally enough, writing a science fiction supplement for a universe based on H.P. Lovecraft's Cthulhu Mythos proved a challenging endeavor.
Lovecraft includes references to the future in some of his stories. ... [click here for more] |
Chaosium |
$27.95 $15.37
|
Time Runs Short!
Unspeakable terror lies just on the edge of our collective consciousness. Creatures that were old when man first walked the earth dwell in a universe that holds terrible secrets. We are far below the top of the food chain!
To elder beings such as these, our existence is but a mere annoyance. Some are merely content to bide their time until we eventually exterminate our... [click here for more] |
Chaosium |
$25.95 $14.27
|
Confronting Hastur Across Time and Space
Artists, poets, dreamers and madmen feel the hand of the Great Old Ones most keenly. The line between creative genius and abject madness is thin. We all have admired at least one favorite writer or musician who spiraled into insanity before taking his or her own life. Hastur dwells in that gray area between madness and genius. The King In Yellow, a play... [click here for more] |
Chaosium |
$10.45 $13.25
|
 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, ... [click here for more] |
Chaosium |
$16.95 $9.32
|
Nine Forays into Unusual Times & Places
"The Great Old Ones Were, the Great Old Ones Are,the Great Old Ones Shall Be."
That famous saying is the essence of the Cthulhu Mythos. The Great Old Ones are a cosmic evil that has existed since before time and shall exist long after humanity has gone the way of the dinosaurs. With this agelessnes... [click here for more] |
Chaosium |
$34.95 $19.22
|
TERROR AUSTRALIS includes three roleplaying adventures, "Old Fellow that Bunyip," "Pride of Yirrimburra," and "City Beneath the Sands," as well as extensive information about the Aboriginal inhabitants, their mystical concept of Dreamtime, inhabitants of the Dreamtime, Australian history, transportation in the 1920's, contemporary Australian slang, famous ... [click here for more] |
Chaosium |
$17.95 $9.87
|
St. Bartholomew's Abbeyand Other Excerpts for Cthulhu Dark Ages
Saint Bartholomew's Abbey is an autonomous Benedictine monastery situated along the Lot river, nestled below the Cévennes mountains within the Massif Central region of southeastern France. The year is 962 A.D., and this monastery is presented as an excellent place to begin your Ct... [click here for more] |
Chaosium |
$12.00 $6.60
|
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... [click here for more] |
Chaosium |
$16.95 $9.32
|

“In the last centuries of the Fifth Cycliad, a great malaise began to descend upon the lands of humankind. The great civilizations of Urth, which for Aeons had seemed on the verge of slumber, now finally began to rot from within. From the edges of the world the ever-present enemies drew close, their hungry claws poised to tear apart the delicate flesh of a fr... [click here for more] |
Chaosium |
$18.95 $10.42
|
The Ghosts in the House is a Call of Cthulhu campaign suitable for 3-6 beginning characters. The adventure emphasizes data collection and discussion over running and screaming, and thus it is suitable for beginning players as well as experienced ones. The first adventure is very long (it takes place over 3 weeks or more); the subsequent adventures are much sho... [click here for more] |
Chaosium |
$12.95 $7.12
|
A Malefic Cult for Cthulhu Dark Ages
The Pastores are a fertility cult rooted in an alliance of several noble families who worship Shub-Niggurath in her form of the Magna Mater, and a variety of other Mythos entities under the guise of her sacrificed Son. Their cultic practices involve the breeding, transformation, and periodic sacrifice of the human populace under thei... [click here for more] |
Chaosium |
$16.00 $8.80
|
 A Campaign for Classic-Era Call of Cthulhu,Ideally set in Vermont, 1925-1930
To the Southern New-Englander entering Vermont for the first time there is sense of mystic revivification. On the towns of the lower coast the blight of mutation and modernity has descended. Weird metamorphoses and excrescences, architectural and topographical, mark a menacing tyranny of mechanism and vice-r... [click here for more] |
Chaosium |
$22.00 $12.10
|
 What is a Haunted House?
Is it a decaying mansion brimming with spires, turrets, and intricate grillwork? An abode of great age with its rotting façade and long-lost, eldritch secrets hidden inside, beneath decades of cobwebs and dust? Does it require spine-chilling drafts and creaking wood that causes stalwart investigators to calm their breathing in nervous anxiety? Or perhaps ... [click here for more] |
Chaosium |
$12.95 $7.12
|

Another collection of twenty-five (possibly) spook-filled American House plans from the 18th, 19th, and early 20th centuries for use in Call of Cthulhu and Basic Roleplaying, and other history-based roleplaying games. Includes Colonial Era Houses (1640-1770), New Republic Era Houses (1770-1850), Victorian Houses (1850-1900), Early 20th Century (1900-1930), and offers notes on how ... [click here for more] |
Chaosium |
$13.95 $7.67
|
An Exploration of Long-Lived Wizardsfrom the work of Lovecraft
The works of Howard Phillips Lovecraft contain several stories about old wizards who deal in forbidden knowledge and whom seek to either extend their lifespan, to regain their youth or obtain knowledge and skills to cheat death. Some also seek to increase their knowledge by bringing back others from the dead and forcing them to ans... [click here for more] |
Chaosium |
$15.00 $8.25
|