Cthulhu Britannica London: A Look Inside the Investigator’s Guide

Cthulhu Britannica: London is our deluxe boxed set for Call of Cthulhu, the ultimate supplement for running games set in 1920s London. The PDF version is now available to buy, and the pre-order for the physical boxed set is open too. Pre-orders at both our webstore and at participating Bits & Mortar retailers come with a complementary PDF copy too.

The boxed set contains three supplements – The Investigator’s Guide to London, The Keeper’s Guide to London and Adventures in Mythos London – alongside six pages of handouts and four poster maps. Today we’re taking a look at The Investigator’s Guide to London.

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The Investigator’s Guide to London is a comprehensive guide to the capital in the 1920s. It starts out by introducing London’s recent history and the context of growing tension in Britain following the Great War. It then describes the events of the 1920s, year by year, providing plenty of plot hooks and ideas for scenarios, as well as ways of evoking the bustling era in your games. So, if you want to find out when investigators can fly into Croydon airport by Imperial Airways (1924) or might expect to hear jazz  in a London club (1927), this is where you'll find out.

The Investigator’s Guide then delves into the broader themes of London, from how to get around the city to where the best places to shop are and the sorts of things you might buy at a high-end store like Harrods. It also describes how law and order work and what passes for entertainment in the city, from sporting events to nightclubs, as well as dozens of other essential bits of information you never knew you needed until now, such as fashion or the class system. Finally, new occupations and skills are included to help you make your own London-born investigator. You might choose to play a Bright Young Thing, flush with wealth and eager to party before the world ends, or a British Bulldog, still haunted by the horrors of the Great War.

The final section of the book is the London Guide, which describes the various boroughs and neighbourhoods of London in great detail, providing a Keeper with plenty of information to describe the city’s surroundings during a game. As well as its more conventional neighbourhoods, this section also includes a round-up of graveyards, sewers and asylums within London – everything that a budding investigator could need over the course of a Call of Cthulhu game!

Come back tomorrow when we’ll be having a look at the Keeper’s Guide to London.

About Cthulhu Britannica: London


London in the 1920s is the greatest city in the world, a vibrant melting pot of history and culture at the heart of the British Empire. But underneath the powerhouse of the City lie millennia of history, from the well-documented paths of Roman Londinium to darker antediluvian secrets veiled from modern eyes. London sits atop its history: an ancient swampland that was itself once an even-more-ancient sea-bed. Who knows what secrets lie buried?

The Cthulhu Britannica: London boxed set is the ultimate guide to running games of Call of Cthulhu set in London. The PDF version is available now. We're also taking pre-orders for the physical edition of the boxed set too at our webstore.


Find out more about Cthulhu Britannica here.
Cthulhu Britannica: London Preorder + PDF
Buy the Cthulhu Britannica: London PDF at RPGNow


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