The Gaslight Conspiracy: Cosmic Horror in Victorian Era England
Call of Cthulhu | Campaign
About the adventure
Welcome to our Cthulhu by Gaslight adventure, set in Victorian Era England. The streets and roads are rife with fog, crime, secrets, and monsters. It is a time of the haves and have-nots. A time of great science, medicine, and technological advancements. But also a time of seances, cults, schemes, and very busy detectives, mythos investigators, and morticians. It serves as a tremendous setting for our Lovecraftian horror game. You and your allies will encounter cosmic beings, the occult, eldritch horrors, infamous criminals, monsters, creatures, and political conspiracies. As you solve mysteries and unravel the conspiracies, you will discover how deep the corruption in London runs. Thankfully, you don't have to do this alone. Under the guidance of a disgraced detective, you can create your own organizations, gather resources, and fight back. You don’t need to have played Call of Cthulhu even once to enjoy this game, and you can most definitely immerse yourself in this period piece. All of your actions will have consequences, the horror will be plenty, the roleplay and NPCS I created will be engaging, and you’ll be certain to have a great time. The investigators might encounter such mysteries as: • Our main mystery: How much of society has been corrupted by the mythos • The Real Jack the Ripper and his origins. • The Secrets to how Big Ben was actually built. • The Bloody History of The London Bridge. Enjoy story-telling that spans short, intermediate, and long-term in our original campaign. The horror is grounded in both the cosmic and the real world, with historical flair as a means of accentuating your terrifying experience. This is the perfect time to join as Chaosium Inc. is releasing new content for Cthulhu by Gaslight as we speak. So why not join in the fun early? When I say come have a hell of a good time, I mean it.
This adventure is supplemented by the new Cthulhu by Gaslight book that recently released! I also have a multitude of Pre-Generated Characters to pick from. This game is accessible for ALL players, but I want to stress that LGBTQ+ and minority players are welcome at my table.
Game Master Reviews (33)
Proficiencies
Players say this GM is great at:
Creativity
Rule of Cool
Teacher
Playing in GM Demon's Call Cthulhu is a great time. He has created a fun, horrifying, and distinct world within Gaslight Cthulhu London. Accomplished because of Demon's ability to incorporate players' ideas into the overall story. Demon strives to ensure that his players are having a good time and that everyone gets to contribute to the story. He's also widely clever and able to keep up with all the tangents our table throws at him.
Call of Cthulhu player here. GM Demon has a great ability to design an engaging, immersive story within a world that is not only horrifying, but intricate and brimming with opportunities to interact with the story and characters in meaningful ways. Every choice and action (or inaction) have reasonable consequences that are organic and deeply rewarding (or terrible). One of GM Demon's standout qualities is his openness to player ideas and input. I developed a major plot hook for my character several sessions into the game and GM Demon seamlessly weaved my suggestion into the narrative making me feel like a co-creator in the unfolding mystery. This level of collaborative storytelling, not only with GM Demon but with other players, adds a dynamic layer to the experience that elevates it beyond "just playing a regular old RPG." GM Demon provides a patient and supportive environment, especially for new players to Call of Cthulhu like myself, ensuring that I can dive right into the game even without knowing all of the intricacies. He guides players without being overbearing and encourages learning through fun and exploration. If you are a seasoned investigator or a newcomer to the Mythos, GM Demon offers a game complete with thrilling investigations, clever twists, and plenty of laughs (as well as horror). Highly recommended!
We had a great time! There were only two of us and the DM catered and scaled the game to our level. Would absolutely recommend Demon whether it's a one shot or an entire campaign. They are invested in the story and just want the players to have a great time. 10/10 would make them our GM again.
Additional details
How to prepare
You will need the following: A Roll20 account (it's free, so no worries; A Discord account; stable internet; a working microphone/headset. And an account for the free online character creation tool via https://www.dholeshouse.org/Default
What I provide
A fully written and custom campaign with over 100 NPCs, pictures, maps, character sheets, etc. A strong narrative and player friendly attitude that will adapt to the player's styles and preferences, as well as a flexible application of the rules to ensure that players are engaged in the story we tell together.
Gameplay details
Lines and Veils - I will make it clear to my players that in this game, a lot of awful things will happen. Some of them cannot be removed for the story to make sense--scars and damage, even death, are a part of the game's mechanics, for instance--but others, if not most, can be fit under the lines/veil safety tool. Aftercare/Debriefing - these will both take place after the game. I'm usually available for at least 10 minutes at the end of each session. Players can also request to speak to me alone in a different discord channel if they're more comfortable with that; they can also message me after the game if that works better. Open Door and Breaks - I'll put it simply, if you need a breather, you're good. It's that simple. Just let me know, either by voice/message that you're taking a break and it's good!
Content warnings
• Alcoholism
• Alcohol Use
• Blood
• Body Horror
• Cannibalism
• Character Death
• Classism
• Clowns
• Confronting Abuser
• Controlling Parents
• Death
• Deep or Large Bodies of Water
• Devils / Demons / Fiends
• Drugs (addiction, use, withdrawal)
• Emotional Abuse
• Execution
• Extreme Violence
• Fire
• Forced Blood Draining
• Freezing
• Gore
• Guns
• Hangings
• Illness
• Insects
• Language/Cursing
• Mass Death
• Medical Issues
• Memory Erasing
• Mind alteration
• Mind Control
• Murder
• Mutilation
• Nightmares about Traumatic Events
• Real World Religion
• Snakes
• Spiders
• Torture
• Trivializing Mental Illness
Safety tools used
• Aftercare
• Breaks
• Debriefing
• Open Door
• Session 0
How will character creation work
We will have what is referred to as a soft session zero. This means that per the group's choice, we do character creation through discord/one-on-one/group chats or meeting before the first paid session, or during the first paid session. We will use an official online tool to create characters, and then transfer that information into character sheets on Roll20. Specifically, the 'Point Buy Characteristics Method'.
Players can expect
Combat / Tactics
Medium
Roleplay
High
Puzzles
Medium
Experience level
Beginner
Platforms used
• Discord
• Roll20
$15.00
/ Session
Each player will be charged when a session starts.
Details
Weekly / Sunday - 12:00 AM UTC
Apr 6 / Session 30
3-4 Hour duration
5 / 6 Seats filled
Schedule
Requirements
Experience required: Beginner
Age: 18+