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Cthulhu by Gaslight: Investigators' Guide - PDF

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Adventure, Mystery, & Horror in the 1890s

In the Sewers

What's Inside

Cthulhu by Gaslight takes the Call of Cthulhu roleplaying game to the fog-shrouded streets of Great Britain and beyond.

A New Setting

Cult Monsters

The 1880s—Victorian England. Mystery and adventure in fog-shrouded streets and alleyways. Secret cabals commit grisly murder, wicked crimes, and pledge to bring about the ruin of civilization—all within the square mile of the City of London.

Map of London

The Complete Rules

Seance

Cthulhu by Gaslight is a stand-alone game, and contains the complete rules for the Call of Cthulhu roleplaying game, including character creation. You do not need a copy of the Call of Cthulhu: Keeper Rulebook or Call of Cthulhu: Starter Set to play. The Cthulhu by Gaslight: Investigators’ Guide can be enhanced with the Call of Cthulhu roleplaying game as well as the Pulp Cthulhu supplement, both available separately.

A Cthulhu Statue

Everything You Need

Facing a Skeleton

A complete list of weapons and equipment appropriate for the Gaslight-period. Rules for exploring in the 1890s, and extensive information on Fringe Science and the Occult practices of the time. The book also includes 10 pre-generated Cthulhu by Gaslight Investigators.

The Faeries

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Play Cthulhu by Gaslight: Investigators' Guide on Roll20!

Stand-alone game, Compendium includes the complete rules
New character mechanics available in the Builder, with drag & drop supported items
10 maps, 40 full-color scenes, 200+ tokens, 29 rollable tables, and 10 pre-generated investigators
Unlimited Characters in Roll20 Characters for Cthulhu by Gaslight

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Reviews (4)
Discussions (5)
Customer avatar
Walt S April 23, 2025 10:32 am UTC
"Cthulhu by Gaslight is a stand-alone game, and <b>contains the complete rules</b> for the Call of Cthulhu roleplaying game, including character creation. You do not need a copy of the Call of Cthulhu: Keeper Rulebook or Call of Cthulhu: Starter Set to play."
This is not true at best what is included is a summary of the rules.
Customer avatar
Mel H January 16, 2025 12:55 am UTC
I'm so glad I have the old one. I don't need the changes and agendas they are trying to force into all of their new products. I have loved this game since the 90s' and I'm worried it's going to become a joke like One D&amp;D. I hope not, but I'll be sticking with the old one.
Customer avatar
Don F November 25, 2024 10:22 pm UTC
PURCHASER
What are the differences between this and the original Cthulhu by Gaslight? I have the earlier book. What more would I be getting from this, other than improved art?
Thanks!
Reply
Customer avatar
John M December 16, 2024 10:34 pm UTC
A LOT more detail and a lot more input from British writers. The old edition was what? About 150 pages? The new edition has 290 pages not including the index. The Keeper's book (due Q1 2025) will be 255 pages not including index. So together that's 545 pages versus the old edition's 150 (it combined investigator stuff, keeper stuff and scenario stuff from memory).

Stuff like social class in the old editions was dealt with in a couple of pages. New edition devotes about 70 pages to class and social stuff in Victorian Britain and working class characters are more viable.

While the old editions, again from distant memory, were good, they were also, I understand, mainly written by Americans. Nothing wrong with that... but having folk like Mike Mason, Keris McDonald and Lynne Hardy involved has brought a better level of detail about British history to the setting. Just IMHO.
Reply
Customer avatar
Walt S April 23, 2025 10:37 am UTC
A lot of woke cult propaganda has been added.
Reply
Customer avatar
Roderick M April 28, 2025 9:15 am UTC
Yawn. Go play Lamentations of The Flame Princess if this isn't your bag. CoC is for the cool kids now (always was, really, if you count this cool kid who started back in 3rd ed), you're welcome to join, it might even wake you up :)
Customer avatar
Harald H November 23, 2024 8:49 am UTC
That sounds like a very nice variant of the standart CoC. Probably interesting for newcomers that know they want to play in a Victorian setting.
But can you tell me what use this book has for people that already own the mainstream (1920/Modern) investigator book and material for the Victorian era?
Reply
Customer avatar
Paul D November 24, 2024 4:35 am UTC
Absolutely nothing. It's a standalone product so you do not need access to previously released CoC rulesets.

If you're just getting into CoC it may be worth a look, but otherwise, nah. (Unless you want the Victorian setting info, which I guarantee will most likely not be worth the asking price.)

It's kinda like Pulp CoC and all the other spin-offs, you get a core book based on the mythos with some extra flavour thrown in (which may or may not be to your tastes) and you choose if you wanna splurge or not. Honestly, if you have the core player's book, the keeper's book, and your imagination, you do not need anything else.
Reply
Customer avatar
Timothy V November 24, 2024 5:01 pm UTC
Honestly if your in it for the setting id wait on the keeper book
Customer avatar
Justin S November 21, 2024 6:01 pm UTC
Enjoying it so far (PDF direct since I ordered a hardcover). But I am wondering - is there any word when the Gaslight Keeper's guide will be coming out?
Reply
Customer avatar
John M December 16, 2024 10:08 pm UTC
Q1 of 2025. So sometime before April most likely
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Product Information
Electrum seller
Pages
296
ISBN
978-1-56882-494-9
Publisher Stock #
CHA23186-PDF
File Size:
125.13 MB
Format
Original electronic Click for more information
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File Last Updated:
April 22, 2025
This title was added to our catalog on November 20, 2024.