Investigator Generator (Call of Cthulhu)

How the investigator generator (Call of Cthulhu) works

Every result is a single short paragraph written from the perspective of one fictional investigator working somewhere in or near the 1920s New England that fans of the Cthulhu Mythos will recognise. Each brief is built from a small cast of recurring ingredients: an occupation or side trade, the way a particular investigator's grip on their own nerves is fraying, the last place they were seen, the working title on their case folder, and the small private habits that mark them out as a person rather than a dossier.

You will not get a numbered stat block. You will get a single sentence that does the writing work for you, the way a good opening line does. Drop the brief into a character sketch as the first paragraph, paste it at the top of a session-zero handout, or hand it to your players as the first sentence they read when they open the manila folder in the parlour of a Federal Hill boarding house.

Picking an investigator brief and using it at the table

Roll the generator a few times until an angle catches you. Look for the detail that surprises you: a French phrase book that still smells faintly of machine oil, a single brass compass that has not pointed true north since the autumn of nineteen nineteen, an antiquarian in Vienna who signs every letter with a faded green seal. That surprise is the hook your players will lean toward when you open the case.

If you want a quieter, slower case, reroll until you land on a brief whose detail is a private vice or a phobia rather than a Mythos encounter. If you want a higher-octane opening, reroll for a result whose hook is a single black shape standing at the foot of the bed, or a tall figure tipping its hat before crossing the river. The generator is designed so that most results can be played at either tempo depending on how your keeper frames the rest of the evening.

Identity, weight, and the 1920s New England frame

The briefs stay deliberately in period. You will see mention of Arkham, Federal Hill, Beacon Hill, the Boston Athenaeum, Miskatonic University, the Old Howard, the Parker House, the Touraine, Charlestown, Roxbury, the Quincy granite yards, Marblehead, Kingsport, and the wider Massachusetts coast. Proper nouns do most of the worldbuilding work. The investigators speak and act like New Englanders of the early twentieth century: surnames filed before given names on case folders, case files labelled in careful copperplate, trousers pressed, hats tipped a fraction too low.

Names are kept in the period style without leaning on any canonical Cthulhu Mythos character, faction, or place from the source material. Phineas Quill of Providence, Adelaide Vesper Marsh, Constance Mireille Bream, and the rest are written for this generator and free to use in personal and most commercial contexts. Each investigator is anchored by a single physical tic, a single family tie that has gone cold, and a single object that does not leave their pocket.

Tips for turning one brief into a session

• Pick the detail that surprised you and write it on an index card. That is your session-zero hook.
• Choose one investigator the keeper will run and one the players will meet at the door of the safe house.
• Pull the last-known location out of the brief and use it as the place the players are asked to retrace on foot.
• Use the working title on the case folder as the title of the evening's handouts.
• Let the private vice or phobia dictate one scene that has nothing to do with the Mythos. Domestic scenes are where horror lives.
• Keep the notebook handwriting detail in your back pocket. It earns its keep the first time a player tries to read it out loud.

Inspiration prompts to write from

• Write the last letter your investigator ever posted, the one their sister received marked Return to Sender.
• Describe the contents of a single travel trunk, in order, from a case you closed in November nineteen twenty three.
• Sketch the dossier page that lists the seven newspaper clippings taped inside the desk drawer, in chronological order.
• Write the scene where your investigator first realises their French compass has stopped pointing north.
• Write the Sunday your investigator's mother-in-law refused to say their name at her supper table.
• Describe a single Mythos encounter you refuse to discuss with anyone, ever, in any company.

What are good Investigator Generator?

There's thousands of random Investigator Generator in this generator. Here are some samples to start:

• An antiquarian book dealer who catalogues rare editions on the third floor above a Providence tobacco shop.
• An investigator whose sanity slips a little further every time the church bells of Federal Hill count to seven.
• An investigator last seen climbing the iron staircase of the Harborside Storage Company on a Tuesday that was not a Tuesday.
• An investigator whose case file, if filed at all, would carry the working title The Salt and the Singing.
• An investigator who corresponds only with a reclusive antiquarian in Vienna who signs his letters with a faded green seal.
• An investigator who has read aloud from a leather folio bound in something that was never quite horsehide, only once.
• An investigator who takes meetings at a Beacon Hill speakeasy where the orchestra never plays anything past 1924.
• An investigator who flinches at any unexpected knock, a habit picked up somewhere in the Argonne in the autumn of eighteen.
• An investigator whose only useful skill is that he can read aloud a phrase in Old English without sneezing.
• An investigator whose missing colleague was last heard from at the Federal Hill post office two days after Christmas.