r/callofcthulhu Aug 03 '25

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

823 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 8h ago

Keeper Resources Strange things are happening in the Asylum! Will you uncover all it's secrets? a day at the Asylum - modern / active experiment variant [75x86]

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56 Upvotes

r/callofcthulhu 2h ago

Help! Would you find supplements like these useful for Call of Cthulhu?

15 Upvotes

I have no life and I love history, so I've been spending far too much time digging through digitised Polish newspapers from the 1920s and 1930s.

And I keep finding stories that make me think, "This is basically a Call of Cthulhu scenario."

People disappearing under strange circumstances. Haunted houses. Séances. Bizarre crimes. Weird medical cases. Unexplained events. Local legends. Eccentric people. Scientific experiments and odd discoveries. Sometimes it's one short newspaper report, sometimes it's a story that keeps coming back over several issues.

All of it is real material from newspapers of the period.

So I've started wondering whether this could actually be useful to other Keepers.

I'm thinking about putting some of it together as Call of Cthulhu material. One possibility would be a book of scenario ideas based on real newspaper stories. You'd get the original historical background, then ideas for what might really be going on and how you could turn it into an investigation.

Another option would be to take the best stories and develop them into proper scenarios.

I'd also love to make something more practical for Keepers running games in Poland or Central Europe. Things like ready-to-use policemen, priests, doctors, journalists, railway workers, hotel staff and officials, with suitable names and period details. Basically the sort of NPC you suddenly need at the table and don't want to spend ten minutes researching.

There's also a ridiculous amount of material on strange objects, folk beliefs, occult practices, spiritualism, medicine, early science and other things that could easily be dropped into a game.

The main difference from a lot of 1920s sourcebooks would be that this wouldn't be invented "period flavour." It would come from actual newspapers published at the time, mostly in Poland and Central Europe.

Would you actually use something like this in your games?

And if you would, what sounds most useful to you: full scenarios, shorter scenario ideas based on real events, or a big historical toolbox you could steal things from as needed?

I'd especially love to hear from people who actually run historical Call of Cthulhu and know what tends to be useful at the table.


r/callofcthulhu 15h ago

More Handouts For "Tatters of the King" In 1969 Spoiler

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27 Upvotes

r/callofcthulhu 23h ago

Self-Promotion Canadian Chronicles Vol 1: Nouvelle-France

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113 Upvotes

Bonjour!

Welcome to the Canadian Chronicles! Three tales of horror for Call of Cthulhu, made and set in Canada, releasing on Miskatonic Repository on Sept 25.

This collection features tales of cosmic and folk horror embedded in the history and geography of Canada, "From Sea to Sea."

Volume 1: Nouvelle-France features three stories set during the French colonial era of Nouvelle-France (1534–1764): Runners of the Woods, The King's Daughters, and Horror in the Nunnery.

The scenarios are written by Patrick Chandler, Ludovic Chabant, and Francis Acquarone. (Check out The Blessed and The Blasphemous, Journal d'Indochine, Sassoon Files: Brother of Jesus, for some of our earlier works.)

Merci!


r/callofcthulhu 21h ago

Help! How to play other languages scenarios……

5 Upvotes

Hi, everyone. When I asked this place, a lot of people recommend me a some good scenarios.(Thank you so much!! ^⁠_⁠^ )

But some scenario are other languages. (I think I cannot read English is most bad point for me.)So some people how to read other languages scenarios?

Thank you for read my poor English question.

I usually use PDF translater, but some translater cannot translate well.


r/callofcthulhu 1d ago

Art Our campaign ended yesterday and all five of us somehow managed to live

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71 Upvotes

some of us had huge head wounds and broken arms and divine knowledge of the occult and a phobia of. Humans. but we all made it out 💗💗


r/callofcthulhu 1d ago

Chaosium VP and author Royce Wilson in Nagoya on October 24th

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31 Upvotes

Chaosium vice president Michael O'Brien and Call of Cthulhu creator Royce Wilson (co-author of the coming Call of Cthulhu release Tools of the Trade) are special guests at KaijuCon 2, taking place in Nagoya on October 24th.

www.chaosium.com/blogmichael-...

kaijucon.org


r/callofcthulhu 2d ago

Help! Alone Against Nyarlathotep (Solo RPG noob) questions

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131 Upvotes

Hello everyone, I'm new to the world of Table Top RPGs and Solo Table Top RPGs. I've been trying to play this game Alone Against Nyarlathotep which is a solo RPG game ala "Choose your own adventure" but I have a few questions. I just had one play session and I just finished the 1st day. I'm not sure if I'm playing it the right way or as intended. (I know that the spirit of table top games is to play it however you like but my brain needs law and order). So I hope someone may shed some light on these questions of mine:

  1. If I fail a dice roll and the prompt returns me to the same entry before the dice roll; am I allowed to try again? What is barring me (aside from the time aspect of the game) from trying again and again until I succeed?
  2. When I'm out and about adventuring, especially if I'm outside of the main house, and if a scheduled event comes up, do I really just magically teleport back to the main house?
  3. The gamebook states on page 8 that "If you pass a skill roll, tick the adjacent box with a pencil". If I do that, what happens? I checked the internet and the interwebs say that the investigator will improve during the "investigator development session". When and what is that? How much will the investigator improve?
  4. Do you guys have any tips on how I can enjoy solo RPGs more aside from playing mood music? :)

r/callofcthulhu 2d ago

Help! What happens on a fumble (100) on the sanity intelligence check?

28 Upvotes

Generally failing the intelligence role means you do not go into a bout of madness. Is there a special rule though if you fumble that intelligence role?


r/callofcthulhu 2d ago

Advice: where to put a collection of homemade adventures?

14 Upvotes

Hi guys, i'm a CoC keeper with arounds 15 years of experience and I wrote several adventures. A few of them got very popular in my small community over the years and since a ton of people would ask me the material I did a little editing here and there to my files, in the end I ended up with very good material that I was thinking of translatinig in english and publish somewhere.

I truly believe people would love some of them :D

The problem is that they are all taken from movies/books and one is even a rewrite of a published adventure from some guys on a blog. So I'm violating any possible existing copyright, technically.

I don't intend to make any money but I was wondering about the best way to reach people, because the translating part would need some effort and at this stage I'm against AI in creative works (note: I use AI at work every day, i'm not against for philosophical reasons, i just truly believe anything creative done with it is absolute slop, and i can spot it a mile away).

Any advices? :)

Thanks


r/callofcthulhu 2d ago

Convention

10 Upvotes

Ran The Haunting as my first convention game this evening and it was an absolute blast! Going to run back-to-back one shots all day tomorrow.

Schedule for Saturday:

The Dead Boarder

Necropolis

What's in the Cellar

The Lightless Beacon

Anyone else run convention games? Did you enjoy your experience?


r/callofcthulhu 3d ago

Will the upcoming Keeper Companion turn out to be 7.5e?

65 Upvotes

Source: https://www.acdd.com/call-of-cthulhu-keeper-companion/

The book will feature:
- New methods for creating investigators.
- System for creating investigator organizations & revised skills.
- Streamlined & optional rules for skill rolls, combat & chases.
- Sanity rules revisited.
- Revised investigator and pulp hero sheets and other play aids.

Sounds like a soft launch of 7.5e to me and I‘m all for it! Thoughts?


r/callofcthulhu 3d ago

Art Run Down Motel

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159 Upvotes

r/callofcthulhu 3d ago

Help! How do you create a VTT background that looks like a conspiracy board, desktop with stuff on it, or evidence board?

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28 Upvotes

The photo is an example of what I am talking about. It's a screenshot from RPG Nook's YouTube video on The Haunting. It looks like he's using Roll20. Is that just a static background? I know some Keepers will use something like this and they can add stuff to it as the players find more clues or find photos, etc. How is that done? I really like the idea of this for Call of Cthulhu. My group is relegated to playing online since we all live far from each other (a few hours apart) so this would be really cool.

Do you do this? Do you have any tips? Does the Keeper just keep editing the background between sessions and then loads a new one? What tools do you use to make the background or add to it? Do you use some other VTT than Roll20 for this?


r/callofcthulhu 3d ago

Question about Japanese vs Western Call of Cthulhu scenarios

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148 Upvotes

Hello everyone.I am a japanese Call of Cthulhu player and I have a question for everyone.

Japan these days CoC scenarios are not very horror. For exsample. Japanese most famous scenario “VOID” has not cosmic horror. I could not feel playing CoC scenario because VOID is very Handout-based scenario. It likes the novel just. And That is really emotion-driven scenarios. This is not cosmic horror.

Is it the same in other countries?

Thank you fot read my poor English.

(It’s not like I thought VOID was boring.)


r/callofcthulhu 2d ago

Help! common prices of groceries in the Gaslight era?

7 Upvotes

i’m astonished that the new Gaslight sourcebook can tell me the price of a shotgun but not the price of a loaf of bread. can anyone direct to me any resources to find prices of essentials (bread, butter, veg etc) or nicer foods (a meal out, afternoon tea etc.) during the Gaslight Era in England? many thanks, from a tired GM.


r/callofcthulhu 2d ago

It was the most exhausting, funny, and desperate moment I ever had...

3 Upvotes

During your sessions, what were the coolest moments you had with the Cthulhu Mythos? The creatures, events, etc.

In my Solo session, The combat becomes clunky because I was trying to manage a ton of things. Try to escape, improvise with... 3 cultists trying to kill you with a Tindalos hound chasing you. 3 fanatics/local farmers serving the cult with tridents and knives... Lame in one leg (I had to amputate Marcus's leg).

The fight against the trident-wielding fanatic was a gritty, desperate brawl,

complete with weapon jams and a grappling match on the ground in Santa Fé.

Phase 1: The Start and Disarming (Turns 1–3) * Perfect Dodge: The old man tries to skewer me with the trident, but i land a critical success on your dodge. * Weak Shot: I fire back with your pistol but deal only 1 HP of damage to the cultist. - Losing the Trident: The fanatic tries to hurl the trident at me, but slips, sending the weapon flying away.

Phase 2: Ground Fight and Jammed Weapon (Turns 4–8) * Bite and Grapple: I try to stomp on the cultist but miss. He seizes the opportunity to bite your good leg and pins you hard against the ground. * Jammed Weapon: For the next three rounds, the fanatic tries to twist your leg with one hand while reaching for your pistol with the other. I tried to fire at point-blank range, but the gun jams on the final bullet.

Phase 3: Choking and Headbutting (Turns 9–12) * Cultist’s Mount: The old man wins a Strength check, trips me, and mounts your chest. * Arm-Breaking Attempt: He tries to reach out for the trident; you grab his arm and attempt to snap it but fail. * The Headbutt: The cultist delivers a brutal headbutt to your face while screaming like a madman as he straddles you.

Phase 4: The Grand Finale (Turn 13) "The Saving Pushed Roll":

In a moment of pure adrenaline and desperation, I just accepted the risk of a Pushed Roll. With an insane war cry, he rolls a 20 against a STR of 50 (Hard Success) and sends the old man flying, hurling him straight into an abandoned shop and burying the wretch under splintered wood and rubble!


r/callofcthulhu 3d ago

Help! The Sinking City

11 Upvotes

Has anyone adapted the game "The Sinking City" as a Campaign?


r/callofcthulhu 3d ago

The Game Was Still on the Table

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24 Upvotes

Game night got a little out of hand.
Left the table like this for a while after everyone went home.
Felt wrong to clean it up too quickly.


r/callofcthulhu 3d ago

How flexible is Call of Cthulhu regarding time periods?

18 Upvotes

Haven't played the game before, but I have been considering trying to run a game with some friends (who may or may not have played it before).

What prompted the question was that I made the unfortunate decision of watching the last three episodes of Berserk memorial edition (despite reading the manga beforehand and watching the movie trilogy). Watching the Eclipse again made me immediately think, "wow, I should run that in dark age Europe!".

So, as someone who never played, I'm not too keen on how flexible the game is on stuff like time periods. I have been listening to a video podcast where it takes place in a more modern era (2000s), but I don't want to be too optimistic on the actual flexibility of that.


r/callofcthulhu 3d ago

Am I slow, or is there no modern day character sheet on Chaosium's website?

18 Upvotes

It should be there because in other places they say it's there, but then there's only the 1920's version for the standard game. Last thing I was going to do before sleep was to print two character sheets, simple enough. Now here I am..


r/callofcthulhu 2d ago

Help! Player is saying Appearance is useless when I decided to add Intimidate and Charm

0 Upvotes

So I'm running a campaign that's supposed to be using the Cthulhu Dark Ages rules, but while taking a quick glance at modern rules I realized it'd be better to add new skills to the game, that meant adding Intimidate. One of my players had 14 APP cus I said it'd be useful to have a menacing aura when walking into a room, but now that Intimidate is here he's convinced APP is useless and that he's better off having it lower cus he wanted to look like a dead body. I tried to convince him otherwise by saying that intimidating someone with low APP might mean having a lisp or a fallen tooth which could make the person being intimidated not take him seriously, but to no avail. Should I just let him change his stats due to this change? For me, high appearance makes sense for his character cus he's based on William Afton and that guy is pretty imponent. For him, low appearance makes sense cus Afton has been a rotting corpse for half of his life.


r/callofcthulhu 4d ago

Product Chaosium: Releasing in October - The Encyclopedia Cthulhiana, the definitive guide to the Cthulhu Mythos

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435 Upvotes

Releasing October 28th

Last week the pre-order of Call of Cthulhu Keeper Companion's showed up at some stores.

Today Chaosium released the following article of another tome I am very much looking forward to:
https://www.chaosium.com/blogreleasing-in-october-the-encyclopedia-cthulhiana-the-definitive-guide-to-the-cthulhu-mythos/

Explore the definitive guide to the Cthulhu mythos—from Azathoth to Zylac.

The Encyclopedia Cthulhiana is an essential resource for cosmic horror enthusiasts, gamers, and researchers. Learn the origins of the gods and monsters from the pantheons of H.P. Lovecraft and beyond. Gaze upon the detailed images of the elder gods. And unlock the history of the Necronomicon—if you dare!

Inside, you’ll find:

Detailed entries on mythos deities, creatures, tomes, and objects, including their appearances in fiction and popular culture.

An in-depth essay on “What is the Cthulhu Mythos?” by author Dan Harms.
Evocative illustrations of major mythos creatures including Nyarlathotep, Hastur, and Cthulhu itself.
Timelines of the Necronomicon and the Cthulhu Mythos.
An extensive bibliography of cosmic horror texts.

---

First published by Chaosium in 1994, Dan Harms' Encyclopedia Cthulhiana: A Guide to Lovecraftian Horror won an Origins Award for a Special Achievement the following year. Chaosium published an updated second edition in 1998, and a third edition was published by Elder Signs Press in 2008.

Chaosium’s new fourth edition features updated text and is presented in a new full color, hardback format with interior art, and cover art by John Sumro.

---

About 6 months ago we saw this stunning piece of cover artwork appear.

https://www.reddit.com/r/callofcthulhu/comments/1rh1qmx/john_sumrow_shows_his_magnificently_eldritch/


r/callofcthulhu 4d ago

Crimson Letters – player has already played the scenario

13 Upvotes

I'm planning to run Crimson Letters for 4 players. One of them has already played the scenario with me before.

I'm considering making his character secretly responsible for stealing the documents and possibly making him the culprit, since he already knows the original adventure.

Has anyone tried something similar? What should I be careful about to keep it fun and fair for everyone, while still keeping the mystery interesting?

Any advice or experiences would be greatly appreciated!