Chaosium Call of Cthulhu - Cthulhu By Gaslight - Keepers Guide RPG Sourcebook - CHA23187-H

Chaosium's Cthulhu by Gaslight Keeper's Guide is a Victorian horror sourcebook for the Call of Cthulhu tabletop RPG, catalogued under part number CHA23187-H. Set in the fog-bound streets of Victorian-era London, this Keeper's Guide gives game masters the setting detail and horror-adventure framework needed to run Cthulhu by Gaslight campaigns steeped in cosmic dread and period intrigue. It stands as the core reference for Keepers who want to move their investigations into the gaslit nineteenth century rather than the more common 1920s era.

This roleplaying game sourcebook is written for Keepers already familiar with the Call of Cthulhu system, expanding on the core rules with Victorian-specific content rather than replacing them. It suits groups looking to run a horror RPG campaign built around Victorian society, crime, and the supernatural underground.

Key Features

• Victorian London setting material built specifically for Cthulhu by Gaslight campaigns
• Period-appropriate rules adjustments covering 1890s weapons, technology, and investigation methods
• Guidance for constructing gaslight-era mysteries and Lovecraftian horror scenarios
• Background detail on Victorian society, crime, and the supernatural underworld for Keepers to draw on
• Designed to be used alongside the Call of Cthulhu core rulebook

What's Included

• Cthulhu by Gaslight Keeper's Guide sourcebook (CHA23187-H)