Chaosium Call of Cthulhu Nameless Horrors RPG Sourcebook - CHA23180-H

Chaosium's Nameless Horrors is a Call of Cthulhu RPG sourcebook built for Keepers who want ready-made cosmic horror scenarios to run at the table. This roleplaying game supplement drops investigators into unsettling, Lovecraftian mysteries where the truth behind each case is far worse than it first appears. It's designed for use with the core Call of Cthulhu rules, giving Keepers a set of self-contained horror adventures they can drop into an existing campaign or run as one-off sessions.

The scenarios lean into classic cosmic horror themes: creeping dread, forbidden knowledge, and threats that defy human understanding. Each adventure is written to challenge investigators mentally as much as physically, staying true to the tone Call of Cthulhu is known for. It suits groups already familiar with the system as well as Keepers looking to expand their scenario library beyond the core rulebook.

Key Features

• Collection of Call of Cthulhu scenarios built around cosmic horror themes
• Written for use by the Keeper with the core Call of Cthulhu RPG rules
• Scenarios can be run as standalone one-shots or inserted into ongoing campaigns
• Focuses on Lovecraftian mystery and dread rather than combat-heavy encounters
• Expands available adventure content for existing Call of Cthulhu groups

What's Included

• Nameless Horrors Call of Cthulhu RPG sourcebook