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Call of Cthulhu

Call of Cthulhu

3–6 players 2014

About this Game

Call of Cthulhu is a classic tabletop roleplaying game of eldritch horror based on the works of H.P. Lovecraft. Just behind the veil of reality lie ancient horrors beyond human comprehension: immortal elder gods sunken to the deepest places, cosmic entities drifting dreaming among the stars, impossible ideas waiting for a fragile human psyche to take root in. You play as an investigator, a mostly normal person (at first) who's simply too curious for their own good. You'll pull at threads perhaps best left untouched to uncover the secrets of a world bigger than mortal minds were meant to know. You might unmask cults who wish to wake dread sleeping things, learn the true nature of an alien parasite, or try to deduce what might cause an entire town to all walk into the sea. Your own exposure to all this things may not drive you to madness yourself--if you're lucky. Call of Cthulhu is typically set in 1920s America, around the time of Lovecraft's stories, but its flexible and versatile system and a long history of supplements allow setting your eldritch mystery nearly anytime, anywhere. A classless, skill-based system allows players to fully customize their investigator, and a robust Sanity mechanic tracks your gradual (but likely inevitable) descent into madness as you delve deeper into the mythos. As one of the most popular roleplaying games of all time, Call of Cthulhu dares players to plumb its depths, and unearth its mysteries. Never mind that all who came before you have lost their minds; surely, your fate will be different.

Categories

Mystery Supernatural Eldritch Horror Historical

Mechanics

D100 System

How to Play Call of Cthulhu

Learn how to create a character and play Call of Cthulhu in less than fifteen minutes! Creating an investigator starts with their characteristics: Strength, Constitution, Dexterity, Appearance, Intelligence, Power, Size, Education, and Movement. From these, you can also derive characters' hit points, as well as their starting sanity and occupational and personal skill points. Next, you'll assign those skill points to the skills your character would have based on their age, their job, and their level of education and intelligence. Skills are generally rated from 0-100, with a higher rating being more likely to succeed at that skill. To round out your character, you'll create a backstory for them, determine their wealth, and use that wealth to equip them. Then your investigator is ready to plumb the depths of mysteries mortals were never meant to know!

In play, the core mechanic uses a d100, or percentile dice. When using a skill or making a check, players roll a d100 against their rating in the relevant skill. If the result is equal to the skill rating or below, the action succeeds. In significantly difficult situations, the game master (or Keeper) may require the character to roll half their skill rating or below, or in even more extreme cases, one-fifth their rating or below. Players can also "push" a failed roll, giving them a chance to re-roll, but with worse consequences if they fail.

Combat is quite lethal in Call of Cthulhu, as a horror game about normal human beings, and failing to evade attacks or fight back in a fight can lead to debilitating injuries or a swift end. Additionally, horrific experiences like extreme violence and brushes with the horrors of the Cthulhu mythos threaten investigators' sanity. When this happens, character make a sanity roll. Failure causes them to lose points of sanity and take involuntary action in a panic. Even success might still stick with them, depending on the threat. After all, mere humans uncovering cosmic mysteries in Lovecraftian horror are nearly always doomed to be victims of their own insatiable curiosity.

Occupations

Archaeologist

Archaeologist

The skills associated with Archaeologist are a good mix of investigative and field work, making it a solid beginner class. They know their history and get an additional language, always good base skills for a globe-trotting case. When it comes to getting their hands dirty, they can repair mechanical devices and spot hidden things.

Author

Author

Picking the CoC Author occupation isn’t going to keep you alive when the bullets fly, but it will give you an edge in knowing more about the larger mysteries at play. Authors come with knowledge in all manner of culture, history, and the occult. They even dabble in psychology to help reveal the secrets shady characters are hiding from the party.

Cat Burglar

Cat Burglar

The cultists of Cthulhu gotta be hiding somewhere, and that place has to have a door. This occupation gives you the tools to break in, eavesdrop on important bad guy conversations, and get away with their all-important cursed plot item.

Dilettante

Dilettante

The Dilettante occupation makes you the person of action. While others are looking for answers in dirty old tomes, you’re infiltrating secret gatherings with your high society charm. If things get dicey, and you somehow fail to talk your way out, you have the ability to shoot your way out with firearm proficiency.

Explorer

Explorer

When the time comes to find the location of a lost temple, your group will be glad to have an Explorer along. Become Indiana Jones or Nathan Drake as you climb, swim, jump, and otherwise navigate your way through harsh lands.

Investigative Journalist

Investigative Journalist

This occupation makes use of a variety of knowledge and investigation skills to get answers. You’ll get the skills needed to research and recall history, but also the interpersonal skills to question leads and talk your way into places you’re not supposed to be in. You’re not much help in a fight, but you should be crafty enough to avoid one.

Nurse

Nurse

CoC’s version of a nurse is one who has a bedside manner to match their medical skill. They have boosts to their science, medicine, and first aid rolls. They also excel in listening and one interpersonal skill such as persuading or fast talking.

Private Investigator

Private Investigator

Get right in the mix with this iconic pulp class. When you play a CoC Private Investigator, you’ll have skills for knowledge, discovery, and persuasion. You can also choose to do things the less legal way by relying on disguise, photography, and firearms. This occupation mixes well with any group by allowing you to adjust your playstyle on the fly.

Professor

Professor

Before players get to the occult powers behind a CoC mystery, they often have to contend with the more apparent obstacles of lost history and human conspiracy. The Professor Occupation goes all in on giving you several knowledge proficiencies to research these things. You can pick your academic specialty to better suit the theme of whatever game you’re playing.

Soldier

Soldier

While eldritch horrors tend to be beyond the scope of human weaponry, the cultists that serve them are very much not. And someone has to protect all the researchers on the team. Enter the Soldier. You’ve got physical skills for traversing all manner of terrain as well as the ability to throw down with either fisticuffs or firearms.

Frequently Asked Questions

When does Call of Cthulhu take place?
The default setting for Call of Cthulhu is 1920s America, but the system is flexible enough to be set anywhere with a little editing of the skills. Victorian England, the Middle Ages, and the modern day (among others) are all officially supported by the publishers, but there is nothing to stop a creative Keeper from setting their game anytime, anywhere!
What dice do you need for Call of Cthulhu?
The most commonly used dice in Call of Cthulhu are the d100, or d%, a set of two ten-sided dice that, when rolled together, produce results from 1–100. Some circumstantial rolls in the system, however, may also require dice with 4, 6, 8, and 20 sides, so a full set of seven roleplaying dice is recommended (though your d12 may feel a bit left out).
What supplies do I need to play Call of Cthulhu?
Obviously this will vary from table to table, but here are some good places to start! If your game is played in person, most likely you will want to get a set of dice, something to write with, and paper to take notes. If your game is hosted online instead, you will probably need to make accounts on a few sites for things like character sheets, access to the Virtual Tabletop for maps and tokens, and sites like Discord or Zoom for video/voice calls during the session. You won't always need to have the rulebooks to start, but if you want to read through them to make sure you know all the rules, this might also be a good option.
What if I'm not comfortable with certain themes or content in Call of Cthulhu?
Call of Cthulhu covers an impressive range of topics and styles, including violence, horror, romance, and many many more! However, if there are specific themes or content that you’re uncomfortable with, let your group and GM know before the game, and have an open conversation about these topics. Any group worth playing with should be respectful and understanding of your concerns and the game can be adjusted so everyone is having fun. Many tables also use “Safety Tools” which help ensure that these conversations are handled easily, and everyone has a voice at the table.
What is Call of Cthulhu about?
Call of Cthulhu is a tabletop roleplaying game of eldritch horror. At its core, it’s about ordinary human investigators gradually uncovering knowledge mankind was never meant to comprehend. Frequently, this takes the form of monsters and phenomena of the Cthulhu mythos, but may also include cults, magic, demons, and cosmic truths or mysteries of the universe. This exposure to the supernatural wears down the investigators’ sanity and leaves them almost inevitably mad or dead—but playing a character who cannot resist their own curiosity, even if it dooms them, is the name of the game!

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