Cthulhu by Gaslight – Investigators’ Guide

London, 1880s. The gaslamps barely cut through the fog. Somewhere in the narrow alleys of the City, something is happening that no constable will ever be able to explain – and you are the one who must investigate.

Cthulhu by Gaslight brings the Call of Cthulhu roleplaying game to the streets of Victorian England. Secret cabals commit grisly crimes, fringe science collides with the occult, and the tendrils of the Mythos reach deep into British society. This book is completely standalone: the full Call of Cthulhu rules, including character creation, are included. No separate core book required.

Across 296 full-colour pages you’ll find a thorough introduction to the Victorian era – covering social class, the British Empire, fringe science, and occult practice – alongside period-appropriate character creation rules, a complete weapons and equipment list, and ten ready-to-play investigators. Whether you’re new to the game or a seasoned Keeper, you can start playing immediately.

A proper foundation for a Gaslight campaign. Ready when you are.