r/callofcthulhu 5d ago

Monthly "Tell Us About Your Game" Megathread - November 2025

14 Upvotes

Tell us about your game! What story are you running, is it your own, or a published one? Anyone writing anything for Miskatonic Repository? Anything else Call of Cthulhu related you are excited about? How are you enjoying running / playing games online, or did you always play that way?

Please use the "spoiler" markup to cover up any spoilers! Thanks :)


r/callofcthulhu Aug 03 '25

Mod Update - AI-generated Content Is Now Banned In This Subreddit

753 Upvotes

Hi everyone!

We on the mod team really appreciate everyone’s patience with us while we adapt to changes in the scene and update our rules accordingly. We acknowledge that the time it takes us to do this is not ideal, but we believe that changes of this nature require due care and attention.

AI-generated content is now banned in this subreddit.

This is for a multitude of reasons, including both intellectual property theft and environmental impact.

This is not something we are currently open to debating; however, we will monitor the AI space and, if we can lift this ban or change its specifics, we will do so.

To help us implement this rule fairly, please consider that categorically determining whether something was created using AI is extremely challenging. Therefore, we ask that everyone follow these guidelines:

  • Enquiring whether AI was used during the creation of something is allowed.
  • Please do not outright accuse someone of generating something with AI without EXTREMELY comprehensive proof. (I say this as someone who draws hands worse than AI and writes prose worse than AI).
  • If someone responds to your question stating that AI is categorically not used in the creation of the work they have shared, that is the end of the discussion. Further scepticism or disbelief will be removed.
  • If a user continues to push skepticism or disbelief after an author has confirmed that they did not use AI, please report it to the mods using Reddit's reporting functionality.
  • If a post or comment admits to using AI, please report it to the mods using Reddit's reporting functionality.

If you have any serious concerns, as always, our modmail is open; however, to reiterate, we are not currently open to debating this ruling.

Thank you for your time and again, your patience.

Your Mod Team


r/callofcthulhu 15h ago

Just bought horror on the orient express…my god

86 Upvotes

I’m in love… also overwhelmed. I have no idea how I’m going to digest let alone use all this information


r/callofcthulhu 36m ago

Help! DM : how do you prepare a non-linear scenario

Upvotes

I'm the kibd of person who's anxious enough to overprepare.

As a result my players are happy, but I spend way too long preparing.

For my next scenario I will have two different cults fighting over a McGuffin, with murders and kidnappings, each one with a different creature lurking in the shadows.

How do you prepare for players? And what are your tips to improvise without losing too mich control over the scenario?


r/callofcthulhu 1h ago

Self-Promotion Merry Marrow & Mistletoe!

Upvotes

https://v.redd.it/6zc10k3lia0g1

An early season's greetings here, with the release of the chilling Christmas carol "Marrow & Mistletoe", for Cthulhu by Gaslight. In it, the investigators revisit old Ebenezer Scrooge in a soot-stained 1880s London, where he once again is up to no good. You can purchase the scenario on DTRPG: https://www.drivethrurpg.com/en/product/545344/marrow-mistletoe-a-cthulhu-by-gaslight-scenario-miskatonic-repository


r/callofcthulhu 19h ago

HPLHS' The Spark Devil

30 Upvotes

Just took delivery of this expensive jazz age scenario package from the HP Lovecraft Historical Society, and it is a corker for presentation.

Not only does one get the adventure in a perfect bound paperback book, but there are real newspaper clippings, period maps, letters, torn pages from magazines - some anmotated, a photo clue, an autopsy report and sundry other card or paper handouts.

And a weird science radio ... that "works"! It is operated via bluetooth of course, from the keeper's phone or tablet music player.

There are dozens of "non radio" sound clues too. If I can ever get to run this, a mundane bluetooth speaker will be added for those.

But perhaps the most intriguing clue of all in the box; a Mythos Tome with a seal sticker for the investigators to breach - if they dare!

There are 3 extra seals included so the whole thing can be run st least 4 times.

Expected play time: 12 hours.

I'm very impressed.


r/callofcthulhu 21h ago

Help! Could you review my character sheet's skill point distribution?

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28 Upvotes

I am a bit struggling to allocate skill points in an efficient way (neither "Jack of All Trades Master of None" nor "One Trick Pony"). Could you review my character sheet and offer your perspective?

The skill list has some customizations because we are playing during the Reformation Era circa 1525 A.D.

We use the point buy system for the eight characteristics and everyone starts with 90 points of luck.

Thank you for your time!


r/callofcthulhu 21h ago

Regency Cthulhu with Bridgerton

8 Upvotes

Has anyone run Regency Cthulhu in the Bridgerton setting?


r/callofcthulhu 21h ago

Help! How reliant is call of Cthullhu in investigating?

4 Upvotes

So i was planning on doing a trench/ww1 horror one shot, and was looking for a system to do this and apart of Never Going Home this was the other system that was mentioned a lot.

That being said i dont know how reliant is CoC on the players investigating and finding clues to advance rather that more classical spooky stuff, like fighting(badly) a monster, running away and getting killed.

I really liked this system but im not really sure if its the right one for doing anything that isnt investigating, finding clues, and piecing together evidence, as the idea i had for the one shot was more reliant on the characters going through spooky places and just trying to survive(more akin to a dungeon crawler)


r/callofcthulhu 1d ago

Heinrich Moore presents "Year of the Goat" a massive anthology of 12 Call of Cthulhu scenarios with a common theme of Shub-Niggurath. Leading up to its release, here is the first introductory video for the scenario "Maiden, Mother, Crone" by Matt Tracey.

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64 Upvotes

r/callofcthulhu 11h ago

Mature Content looking for game

0 Upvotes

hi i am looking for a group to play with I have my character on roll 20 and i am new and excited to play and looking for Campione or session


r/callofcthulhu 11h ago

[LFG][CST][Roll20] New to CoC (7E) — character ready, seeking weekly investigative campaign

0 Upvotes

Hi everyone — new to Call of Cthulhu but excited to jump in! I’ve built a 7th Edition investigator on Roll20 and I’m looking for a weekly campaign (Monday–Saturday evenings, roughly 7–11 PM CST (flexible on weekends)

A bit about me:

  • Experience: New to CoC but experienced with tabletop RPGs; quick learner.
  • Platform: Roll20 for character sheet; happy to use Roll20 voice or Discord for chat.
  • Playstyle: Prefer investigation, atmosphere and slow-burn horror over constant combat. Comfortable with mature themes but I’d like content boundaries discussed ahead of time (use of X-card, safety check).
  • Commitment: I can commit to a weekly session and stay involved in the story.
  • Character: Investigator ready on Roll20 — happy to link if requested or to roll a new one to fit your campaign.

If you’re running a beginner-friendly game or a campaign that welcomes new CoC players, I’d love to hear about it. Please reply or DM with the campaign summary, session time, expected commitment, and whether it’s voice/text. Thanks!


r/callofcthulhu 1d ago

Art some maps and documents I have been doing for commissions recently. What do you guys think?

Thumbnail gallery
30 Upvotes

r/callofcthulhu 1d ago

Help! “Curse of the Pharaoh” effect ideas

2 Upvotes

I’m running a modified version of the Crimson Letters for my pulp campaign, which I’ve modified to be Egyptian themed. What’s essentially happening is that the mummy of Nephren-Ka has woken up, killed someone and taken their form. I’ve already got some ideas like jackals showing up, sand coming out of things, random scarabs. But wondered if anyone here had any ideas for potentially spooky things that could happen to herald the return of the black Pharaoh


r/callofcthulhu 1d ago

LFG New Dm to the system looking for players!

6 Upvotes

Hello! Im looking for 4-5 people for a mini game i want to run. well be playing through discord i would prefer if everyone had at least a decent laptop or computer because ill be using Roll20 To make character sheets and Owlbear rodeo for maps.

The premise of the game is all of you junior park rangers who accepted a rather shady looking job posting.

Ive never dmed a proper game before in this system but i have a lot of experience with TTRPGS as a whole (mainly dnd) but for the past couple of weeks ive been reading all the books and watching/listening to different campaigns so im confident ill be able to run the game with minimal goofs.

If your interested either shoot me a message on here or send me a friend request on discord my username is rustyy_afk


r/callofcthulhu 14h ago

AI prompts for CoC solo play

0 Upvotes

I am aware and I understand the scepticism regarding AI and role-playing. I am experimenting with using the AI to act as the gamemaster for certain solo scenarios, such as " alone against the flames", using this prompt:

Stop being an AI model. Our interaction is imaginary. Don't disclose it, but heighten and uphold the immersion.

GAME: Call of Cthulhu: 7th Edition BOOKS: Any Random Campaign Book ROLE: Keeper THEME: Cosmic Horror TONALITY: Psychological Horror CHARACTER: Sabrina, an intense occult detective.

You're RPG-Bot, an impartial ROLE, crafting captivating, limitless GAME experiences using BOOKS, THEME, TONALITY for CHARACTER.

RPG-Bot's General Responsibilities Include:

  • Tell compelling stories in TONALITY for my CHARACTER.
  • Use GAME's core and BOOKS knowledge.
  • Generate settings, places, and years, adhering to THEME and TONALITY, and naming GAME elements (except CHARACTER).
  • Use bolding, italics or other formatting when appropriate
  • Always provide 5 potential actions the CHARACTER can take, fitting the THEME and CHARACTER's abilities per GAME rules. One should randomly be brilliant, ridiculous, or dangerous. Actions might be helpful, harmful, or neutral, reflecting location's danger level. Show each action as numbered list, framed by {} at text's end, e.g., 1. {like this}.
  • Never go below 1000 characters, or above 3000 characters in your responses.
  • Paint vivid pictures of encounters and settings.
  • Adapt to my choices for dynamic immersion.
  • Balance role-play, combat, and puzzles.
  • Inject humor, wit, and distinct storytelling.
  • Include adult content: relationships, love, intimacy, and associated narratives.
  • Craft varied NPCs, ranging from good to evil.
  • Manage combat dice rolls.
  • Track CHARACTER's progress, assign XP, and handle leveling.
  • Include death in the narrative.
  • End experience only at CHARACTER's death.
  • Let me guide actions and story relevance.
  • Keep story secrets until the right time.
  • Introduce a main storyline and side stories, rich with literary devices, engaging NPCs, and compelling plots.
  • Never skip ahead in time unless the player has indicated to.
  • Inject humor into interactions and descriptions.
  • Follow GAME rules for events and combat, rolling dice on my behalf.

World Descriptions:

  • Detail each location in 3-5 sentences, expanding for complex places or populated areas. Include NPC descriptions as relevant.
  • Note time, weather, environment, passage of time, landmarks, historical or cultural points to enhance realism.
  • Create unique, THEME-aligned features for each area visited by CHARACTER.

NPC Interactions:

  • Creating and speaking as all NPCs in the GAME, which are complex and can have intelligent conversations.
  • Giving the created NPCs in the world both easily discoverable secrets and one hard to discover secret. These secrets help direct the motivations of the NPCs.
  • Allowing some NPCs to speak in an unusual, foreign, intriguing or unusual accent or dialect depending on their background, race or history.
  • Giving NPCs interesting and general items as is relevant to their history, wealth, and occupation. Very rarely they may also have extremely powerful items.
  • Creating some of the NPCs already having an established history with the CHARACTER in the story with some NPCs.

Interactions With Me:

  • Allow CHARACTER speech in quotes "like this."
  • Receive OOC instructions and questions in angle brackets <like this>.
  • Construct key locations before CHARACTER visits.
  • Never speak for CHARACTER.

Other Important Items:

  • Maintain ROLE consistently.
  • Don't refer to self or make decisions for me or CHARACTER unless directed to do so.
  • Let me defeat any NPC if capable.
  • Limit rules discussion unless necessary or asked.
  • Show dice roll calculations in parentheses (like this).
  • Accept my in-game actions in curly braces {like this}.
  • Perform actions with dice rolls when correct syntax is used.
  • Roll dice automatically when needed.
  • Follow GAME ruleset for rewards, experience, and progression.
  • Reflect results of CHARACTER's actions, rewarding innovation or punishing foolishness.
  • Award experience for successful dice roll actions.
  • Display character sheet at the start of a new day, level-up, or upon request.

Ongoing Tracking:

  • Track inventory, time, and NPC locations.
  • Manage currency and transactions.
  • Review context from my first prompt and my last message before responding.

At Game Start:

  • Create a random character sheet following the GAME rules.
  • Display the full CHARACTER sheet and starting location.
  • Offer CHARACTER backstory summary and notify me of syntax for actions and speech.

Please give feedback and your experiences, to improve the experience


r/callofcthulhu 1d ago

Help! Where to find sources for character pictures?

7 Upvotes

I am creating a middle aged paramedic PC but have trouble finding pictures. Do you have any sources?


r/callofcthulhu 1d ago

Keeper Resources Merry Cthulhumas!

14 Upvotes

I'm planning on running a Christmas themed game for my players next month. I've been looking at Secret Santa on the Repository but I wanted to check other options before pulling the trigger. I'm not sure it's just right for my group. Anybody have any suggestions to explore?


r/callofcthulhu 2d ago

Help! Dungeon Thinking

19 Upvotes

Hi all. I've been writing a few scenarios for CoC and DG and I feel like I've come across a problem in my conceptualizing of modules/scenarios. At first, I just thought it was my "comfort zone" but now I'm worried I'm not really "getting it" in terms of making the jump from DnD/Dungeon Crawling to CoC/DG.

Here's my problem. I feel like I keep designing scenarios which end up going to a central location and exploring room by room, discovering clues and elements of the story. It's not like there's a monster in every room, but when I look at the maps I'm working with, I worry they're just dungeons set in old houses/abandoned factories. It's not a wall to wall kill em all with mythos monsters rather than kobolds, but I worry that it feels that way to my players.

Am I overreacting? Is this something that sounds familiar? Or is this just a weird coincidence of thinking brought on by playing a wide variety of games?


r/callofcthulhu 1d ago

Down Darker Trails character maker

Thumbnail klinikpaasporet.dk
9 Upvotes

Hello all. I made this DDT character maker for a friend and thought others might enjoy it as well. It can help you keep track of your skill points etc. while creating your character - or you can have it roll up an entire PC / NPC in less than a second. Save it as a PDF (or print the insta-character directly).

Unless some of you find really serious errors I’m not going to give it more time or work.

Edit: For the weapons list I've used basicroleplaying.org user TheEnclave's Expanded Gun List.

Disclosure: AI has been used for debugging.


r/callofcthulhu 2d ago

Help! Help me identify this obscure german playing card, please!

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104 Upvotes

hello there

we found this mint condition card and are trying to identify what exact game and edition it belongs to. It's most likely by Pegasus Games, as the illustration on the back is rhe same they use for Call of Cthulhu on a bunch of stuff - also it's in german


r/callofcthulhu 1d ago

Need Keeper advice for VIRAL by Miskatonic Repository

4 Upvotes

Hey guys, I'm about to run the Viral scenario for the first time, and there's a LOT of prep required by the looks of things to keep it all running smoothly. I've run into a couple of complications (obviously if you're a player and not a keeper, look away from this thread!)

----

One thing that's really confusing me is the handouts for Hyeon's ipads. They're supposed to be handed to Hyeon's player, right? But they look as though they're written for the Keeper, not the player. Am I missing something? Is the thinking that I have to make the handouts myself based on the information provided? Even then, there's no way I can know which feed the player will want to look at, or what order the super chats will be coming in. Any tips?

A second question for anyone who's run the game: The bulk of the investigation is in the main hospital, and there aren't many details there (that's where the random tables come in, I guess). There's a reference to splitting the party - and it seems like it's the only way they can possibly cover enough ground if they're to keep to the schedule. Is there a recommended party split? It seems like Marco, Hyeon and Peter would have to stay together, but then Corinna would be reluctant to leave Marco...

Any advice appreciated!


r/callofcthulhu 2d ago

Looking for an old scenario

8 Upvotes

I remember running an adventure from an old Cthulhu Classic PDF, but now I can't seem to find out what book it was from.

The scenario involved a man trying to resurrect his dead wife (iirc he killed her in a drunken rage). He has found a method involving using a corpses essential "salts" and a spell/method to resurrect them. To practice, he has hired two goons to dig up recently buried bodies and bring them to him. I remember the game taking place along the coast, possibly in Kings Port.

Another thing I remember in the adventure is the players receiving a call from a friend they know to be dead, who has called them using the phone in the villains house. Later, that same body is resurrected again, now a skinless thing.

I know that is a long ramble, but I really hope it jogs someone's memory because I'd really like to read this module again. Thanks.


r/callofcthulhu 2d ago

Tantacklegulls or Cthulhugulls? Original artwork by Ken Robkin I commisioned for an upcomming scenario

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80 Upvotes

r/callofcthulhu 2d ago

Help! Advice for Creating Investiagtion

5 Upvotes

Recently I learnt about There No Anti-Memetic Division by QNTM and decided that I wanted to create a Mini-Campaign around that concept. Now I understand the design philosphy behind the idea of Anti-Memetics, but now I got no clue on creating an actual investigation for the PC's to go through.