Chaosium

THREE PORTALS INTO NIGHTMARE The Necropolis What ancient horrors lie slumbering in a newly discovered tomb deep in Egypt's Valley of the Kings? Are...

Two One-to-One Scenarios for Call of Cthulhu Does Love Forgive? is a collection of two special scenarios for Call of Cthulhu for one Keeper and one...

Collected Wisdom on Running Games! A gathering of wisdom, advice, and tips from Keepers for Keepers of the Call of Cthulhu roleplaying game. What's...

Solitaire Adventure by the Lakeshore! What has Professor Harris’ research got to do with the strange green fog enveloping the town? Who are the men...

A Setting-Agnostic Roleplaying System QuestWorlds is a rules engine designed for play in cinematic, larger-than-life settingsinspired by classic pu...

Hear the call of glory and honour, journey proud across your land free from the tyranny of kings and queens—enter the Age of Vikings! In the Age of...

In Rivers of London: the Roleplaying Game, players take on the roles of newly recruited members of the London Metropolitan Police Service’s specia...

Enter the Domain of Magic and Myth!Within the world of Glorantha lies Dragon Pass, an intensely magical region home to war and wonder, the birthpla...

Step into London’s Dark Heart The scenarios in this book highlight the grimy underbelly of Victorian London. The first, Dust to Dust, works well fo...

Over 550 spells of dire consequences, secrets, and unfathomable power! Contained within are gathered spells drawn from over thirty years of Call of...

Death and Discovery in the Vermont Hills! In 1929, a student died during an expedition in the Vermont Hills. One year later, the Miskatonic Univers...

Unveiling the Mythos in Weimar Germany In the aftermath of the Great War, Berlin has a reputation for licentiousness. A place where anything may be...

Cthulhu Dark Ages is a world lit only by fire. The ancient empires collapsed centuries ago, taking their culture and learning with them. It’s a dar...

Five scenarios of Cthulhu Mythos terror designed for new players and keepers! What's Inside? Doors to Darkness is a collection of five scenarios fo...

Troubles Afoot! Best put a round in that iron and make haste! Down Darker Trails takes your Call of Cthulhu games to the badlands of America’s wild...

Six Scenarios Against The Unknown! The denizens of Nameless Horrors are unlike anything you’ve encountered before. Each is truly of the Cthulhu Myt...

Solitaire Adventure in Canada’s Wilds Alone Against the Frost is a solo horror adventure for one player, set during a research expedition to Canada...

Cthulhu Calls! At long last, the intricacies of the nefarious Cthulhu cult are revealed! What’s Inside? Cults of Cthulhu gives you the rules to inj...

Two unsettling encounters on the road With the rise of the automobile in the 1920s, people were no longer tied to the railways as a means of gettin...

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 th...

A Guide to Case Files in the USA What's Inside Rivers of London: In Liberty’s Shadow - A Guide to Case Files in the USA is a sourcebook for Rivers...

Basic Roleplaying: Universal Game Engine is the definitive core rulebook for the renowned D100 system that powers classics like Call of Cthulhu and...

The Basic Roleplaying: Gamemaster Pack is the ultimate accessory for BRP GMs and creators. Featuring a 3-panel GM screen with full-color artwork an...

All hail Yelm the one! Thou hast risen again to bless us with thine power! Cults of RuneQuest: The Gods of Fire and Sky is the player’s guide to th...