The Chaosium System
Welcome to Chaosium’s Basic Roleplaying system, a book that collects in one place rules and options for one of the original and most influential role playing game systems in the world.
This book comprises a roleplaying game system, a framework of rules aimed at allowing players to enact a sort of improvisational radio theater—only without microphones—and... [click here for more]
In this BRP Quick-Start booklet, Chaosium has collected the essential Basic Roleplaying rules for a quick introduction to one of the most influential roleplaying systems in the world.
Basic Roleplaying was designed to be intuitive and easy to play. Most Basic Roleplaying mechanics are simple and logical.
Virtually all rolls determining success or failure of a task are... [click here for more]
Eight Horrors for One Special Night
This monograph is the result of Chaosium's annual Halloween Adventure Contest. What follows are eight tales of Halloween Horror spanning time and space, from medieval Europe to modern day Arkham. We hope you enjoy these Samhain offerings.
Of Angels and Bones
A 1920s ADVENTURE BY BRANDON HANLAN. "Of Angels And Bones" revolves around the happenings... [click here for more]
Tales of Halloween Horror
Our Third Halloween Adventure monograph is here just in time for your Halloween Call of Cthulhu or Basic Roleplaying games. Here are six terrifying Halloween-themed adventures - winners and honorable mentions of the 3rd Annual Chaosium.com Halloween Adventure Contest (2007).
BY BOB BRINKMAN. Set in 1924 Arkham, MA this adventure is meant as a one shot departure... [click here for more]