Best Chaosium in 2026

Officially Licensed

Hardcover

445 Pages

Officially Licensed

Hardcover

Officially Licensed

Must Have One Copy of the Call of Cthulhu Keeper Rulebook to play Call of Cthulhu

Provides 5 Scenarios For Beginning Keepers & Players of Call of Cthulhu

Officially Licensed

For Call of Cthulhu: 7th Edition

Must Have One Copy of the Call of Cthulhu Keeper Rulebook to play Call of Cthulhu

Who Knows What Happens... Behind Closed Doors Mansions of Madness Vol. 1 contains five scenarios for use with the Call of Cthulhu Starter Set or the 7th Edition Call of Cthulhu: Keeper Rulebook. It includes two fully updated and revised classics, along with three brand new adventures, and all can be played as standalone adventures, used as sidetracks for ongoing campaigns, or strung together to form a mini-campaign spanning the 1920s.

Suitable for up to six players and their Keeper, each scenario should take between one and three sessions to play through, and are an ideal next step for those who have already experienced the horrors contained within the scenario collections Doors to Darkness and Gateways to Terror.

Mister Corbitt - Does a seemingly shy and retiring local businessman hide a terrible secret? Can the investigators solve the riddle and save the day?

The Two Headed Serpent

Chaosium

ABIS_BOOK

This supplement is best used with the CALL OF CTHULHU (7th Edition) roleplaying game

Optionally used with the PULP CTHULHU sourcebook

Three ready-to-play scenarios introduce players to the world of Cthulhu Dardk Ages; building on the tensions, characters, and horrors lurking in Totbuth and the lands surrounding the community

53 Lovecraftian Creatures Categorized and Detailed

Full Color Illustrations

Size Comparison Charts

Used Book in Good Condition

Officially Licensed

Hardcover

445 Pages

Officially Licensed

Hardcover

Officially Licensed

Must Have One Copy of the Call of Cthulhu Keeper Rulebook to play Call of Cthulhu

Provides 5 Scenarios For Beginning Keepers & Players of Call of Cthulhu

Officially Licensed

For Call of Cthulhu: 7th Edition

Must Have One Copy of the Call of Cthulhu Keeper Rulebook to play Call of Cthulhu

Who Knows What Happens... Behind Closed Doors Mansions of Madness Vol. 1 contains five scenarios for use with the Call of Cthulhu Starter Set or the 7th Edition Call of Cthulhu: Keeper Rulebook. It includes two fully updated and revised classics, along with three brand new adventures, and all can be played as standalone adventures, used as sidetracks for ongoing campaigns, or strung together to form a mini-campaign spanning the 1920s.

Suitable for up to six players and their Keeper, each scenario should take between one and three sessions to play through, and are an ideal next step for those who have already experienced the horrors contained within the scenario collections Doors to Darkness and Gateways to Terror.

Mister Corbitt - Does a seemingly shy and retiring local businessman hide a terrible secret? Can the investigators solve the riddle and save the day?

The Two Headed Serpent

Chaosium

ABIS_BOOK

This Starter Box contains everything you need to start playing Call of Cthulhu—the tabletop roleplaying game of mystery and horror.

Players take on the role of investigators of mysteries, uncovering dark secrets, encountering strange monsters, and thwarting sinister cults. Together, you and your friends create and develop a story in which each of your characters plays a leading role, which could be foiling some dastardly plot or stopping horrors from beyond space and time!

Roleplaying gaming is a social pastime. Everyone works together in a team, each playing an investigator character. One player runs the game—the Keeper of Arcane Lore—who referees the game and presents the story and adventure plots to the other players. Think of it a bit like acting in a drama, but where there isn’t a script. Dice and the rules of the game determine the success or failure for your character’s actions—all while you are propelled into dramatic and nerve-tingling situations!

This Starter Box contains everything you need to start playing Call of Cthulhu—the tabletop roleplaying game of mystery and horror.

Players take on the role of investigators of mysteries, uncovering dark secrets, encountering strange monsters, and thwarting sinister cults.

Together, you and your friends create and develop a story in which each of your characters plays a leading role, which could be foiling some dastardly plot or stopping horrors from beyond space and time!

With the rise of the automobile in the 1920s people were no longer tied to the railways as a means of getting to distant locations

For those who could afford the relative luxury of a car the expanding United States’ highway network brought with it the opportunity to travel and see new places as well as visit those that the railways didn’t reach - and all at your own pace too

But the new road network also meant that strangers began making their way into once isolated and secluded locations

Alone Against the Frost is a solo horror adventure for one player, set during a research expedition to Canada’s Northwest Territories during the 1920s.

Here, you choose your own path as you navigate through the story—your choices will determine whether you find success or failure.

Item Package Dimension: 5.0" L x 11.0" W x 14.0" H

Gateways to Terror contains three short-play scenarios for the Call of Cthulhu 7th Edition roleplaying game, ideal for beginning and experienced players and Keepers alike. Originally, all three—The Necropolis, What's in the Cellar? and The Dead Boarder—were designed as demonstration games to give a taste of the game's core motifs—mystery, investigation, and horror—for those with limited time.

The scenarios can be played in as little as one hour but can be expanded for slightly longer play, and each comes with four ready-made investigators so you can jump right into the action. Each scenario includes hints and tips for Keepers new and old, suggestions for additional investigators for larger groups, and a summary of the key rules needed to play.

The Necropolis What ancient horrors lie slumbering in a newly discovered tomb deep in Egypt's Valley of the Kings? Are you allowing local superstitions and the unfortunate events surrounding the opening of Tutankhamen's tomb to play on your mind as you wait to step down into the darkness

This supplement is best used with the CALL OF CTHULHU (7th Edition) roleplaying game

Optionally used with the PULP CTHULHU sourcebook

Three ready-to-play scenarios introduce players to the world of Cthulhu Dardk Ages; building on the tensions, characters, and horrors lurking in Totbuth and the lands surrounding the community

53 Lovecraftian Creatures Categorized and Detailed

Full Color Illustrations

Size Comparison Charts