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Chaosium Inc.

Free Adventures

What is a roleplaying game without adventures? 

We have some free ones you can download to experience the horror of Cthulhu before you buy it (and we know you will).

Alone Against the Flames - Solo Adventure

Alone Against the Flames CoverThis is a solo adventure for the Call of Cthulhu game. It is a horror story set in the 1920s where you are the main character, and your choices determine the outcome. It is also designed to lead you through the basic rules of the game in a gradual and entertaining fashion. Although most such adventures are played with your friends, this one is just for you. 

Before you begin to play, make sure you have a copy of the Call of Cthulhu Seventh Edition Quick-Start Rules, and a blank investigator sheet. You’ll also need a pencil, an eraser, and some roleplaying dice. 

You don’t need to read the rules before you start playing. Just settle in a comfortable chair before a roaring fire. Then read on and follow the instructions. 

…On second thought, don’t sit too close to the fire.

ISBN/EAN: 9781568824352 - 63 pages. 8.5 x 11". By Gavan Inglis.

Download the PDF - Download the ePub version.

Want a printed copy? Order it here!


Arkham Now: Free Scenario - 6th Edition

Arkham Now Free Scenario Cover

Revisit 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 possessions, no one notices the more disturbing, underlying qualities of the city: the grotesque vegetation sprouting in some places, the sometimes-odd taste from the reservoir’s drinking water, the disturbingly high rate of birth defects, the too-frequent child abductions.

Those who make inquires are scoffed at by citizens, and rebuffed by local and state officials. The truly brave continue to put the pieces together, posting their thoughts on the Internet. Many of these individuals disappear from cyberspace eventually — often due to the effects some of these discoveries can have on one’s mental health.

Though they would never admit it, many of the long time residents of Arkham know there is something not quite right about their town…


"Lost in a Book" — in the 1920s, affluent bibliophile Stuart Portman had the finest book collection in all of Arkham, including the several bookshops that serviced the town at the time.

Portman was also quite the degenerate, with many rapes to his credit. His wealth, family status, and natural cunning insulated Portman from the fallout of such despicable behavior.

Toward the end of his life – a lifelong smoker, Portman developed cancer of the lung in his late fifties – he began frantically searching for any means to prolong his existence. With so many crimes of the flesh attached to his soul, Portman in his final years developed a conscience, or at least was fanatically determined to put off any punishment for his sins that he so deftly avoided in his mortal existence.

Medical science of the day was no help – Portman was a goner. He turned to his collection of books, to the queer, strange books on black magic and occultism that he had merely collected as expensive novelties; now they might hold something of true value for the failing bibliophile.

Scenario by Brian Courtemanche. 16 pages. 8.5 x 11"

Download the PDF.

Like the Sample? Buy the full version of Arkham Now!


Sundown - A Call of Cthulhu Adventure in the Old West - 6th Edition

Sundown CoverIt's easy to feel alone as the shadows gather and the pale moon rises over the High Plains. The Cherokee say that on nights like this, the cold wind from the prairie has a mind of its own — a malignant chill, born of the darkness, which eats at your warmth, and steals all compassion.

It was a night like that when Barton Duvall rode into Tombstone. A night like that when they found what was left of little Alina Hundle — the few sad remains, barely recognizable, that Barton had left for her family to bury. And, it was a night like that when you realised that justice was more than a word bandied around by fearful shopkeepers — it was a necessity.

The year is 1880, and the posse is forming. 

Sundown is a character-driven scenario of the old-west written to celebrate the 30th anniversary of Call of Cthulhu. Scenario by Dale Elvy. 26 pages. 8.5 x 11" watermarked PDF.

Download the PDF.


The Atomic Beast - 6th Edition

The Atomic Beast CoverThe year is 1954, and the time of the Atom is upon us. Since the H-bombs were dropped during WWII the world has been a different place. Fear of both the Red Menace and the devastating power of the A-bomb runs deep in the hearts of the everyday American citizen. The government is working to ensure the safety and security of the country. Selfless men and women toil in the southwestern United States to develop weapons to keep the Commies at bay. The progress is slow, and some fear that we may be losing ground, but that just makes the dedicated scientists work even harder, and take even greater risks.

THIS IS A DOWNLOADABLE PRODUCT. A 31-page downloadable PDF written by Bob Geis.

Download the PDF.


Murder in the Footlights - A Basic Roleplaying Pulp Adventure

Murder in the Footlights CoverMurder in the Footlights is a short Pulp Basic Roleplaying adventure suitable for two to four adventurers of normal to heroic experience. Character types that are suitable for the adventure would be Detectives, Reporters, Photographers, wealthy Dilettantes with connections in big city politics, or even a low-powered Pulp Age Super Hero. Other character types can work just as well, but it will be up to the gamemaster to determine how the adventurers get caught up in this caper.

The Sanity Rules are used in this adventure, but you can opt to ignore them altogether.

THIS IS A DOWNLOADABLE PRODUCT. Scenario by Troy Wilhelmson. 10 pages. 8.5 x 11" watermarked PDF, created from electronic production files.

Download the PDF.