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Get Excited for Gen Con 2024!

Posted by Brian Holland on 25th Jul 2024

Chaosium is coming to 

Everything you need to know about Chaosium at Gen Con 2024 is below!

Chaosium returns to Indianapolis for Gen Con 2024 and is once again bringing you everything for mythic adventures, chivarlous quests, and horror roleplaying!

  • Find our main booth at Booth 511 in the exhibit hall
  • Find our New Year's Eve 1924 themed Call of Cthulhu event room at Room 134 in the ICC—right opposite the exhibit hall in the Hoosier concourse!

What Is New At Chaosium Booth 511?

The Cthulhu by Gaslight: Investigators' Guide will be available in pre-release exclusively at Gen Con! Get your hands on this new stand-alone supplement for the Call of Cthulhu roleplaying game, containing all the core rules you need to create Investigators and begin unearthing the horrors of 1890s London!

Cthulhu by Gaslight: Investigators' Guide will be available only at Chaosium Booth 511, and only while stocks last!

To celebrate the pre-release of the Cthulhu by Gaslight: Investigators' Guide, Chaosium is releasing two limited edition Cthulhu by Gaslight Investigator journals!

The journals come in two sizes, are bound with leather, and contain a mixture of Cthulhu by Gaslight character sheets and note paper for use in your games. The inside covers also have reference tables for players!

There are only 25 copies of each of these journals available, and they are each numbered and official Chaosium products. Get yours at booth 511!

Limit One Per Customer.


From R.J. Ivankovic, author of The Call of Cthulhu for Beginning Readers and Dagon for Beginning Readers comes At The Mountains of Madness for Beginning Readers!

This title will be right at home amongst your collection of Mythos fiction, with stellar art and a rhyming retelling of the classic 1930s story of horror at the end of the world!

Available while stocks last at booth 511!

The Chaosium convention-exclusive playmat returns for 2024! This year, our playmat features Loic Muzy's award-winning cover art for the Call of Cthulhu supplement, Berlin: The Wicked City!

Chaosium convention playmats all have a limited print run and will sell only while stocks last! They will be available at Chaosium booth 511 and in event room 134 in the ICC!

Why choose the lesser evil this November?

Show your support for Cthulhu for President with this all-new Cthulhu presidential campaign merch!

Stock for both the hat and t-shirt are strictly limited, so if you want to campaign for the a truly Great Old One, get yours at Chaosium booth 511!

The all-new Chaosium board game and book bags are available for the first time at Gen Con! These canvas totes are specifically designed with sturdiness in mind to hold your daily Gen Con haul throughout the show and beyond! One side has the Call of Cthulhu, RuneQuest, and Pendragon logos, while the other is emblazoned with the Chaosium dragon.

These bags are available for purchase at both booth 511 and event room 134 for $14.99, or you will get one free with a purchase of $150 or more while stocks last!

The new Call of Cthulhu branded drink bottles are perfect for ensuring the ongoing hydration of any Keeper of Arcane Lore or Investigator of the Unknown!

These 28oz aluminium drink bottles will be available at Chaosium booth 511 and the Call of Cthulhu event room 134.

Get Involved With Chaosium Events!

This year Chaosium has it's very own premium event room! Celebrate the New Year as it was 100 years ago with Call of Cthulhu!

  • Call of Cthulhu demos
  • All-new GenCon 2024 Call of Cthulhu scenario
  • Play Horror on the Orient Express: The Board Game
  • Meet official Call of Cthulhu cosplayers
  • Win big at our Call of Cthulhu selfie-wall

And much more!

Professional cosplayers Utahime and Andrew J. Alandy will be in attendance at the Call of Cthulhu New Year's Eve 1924 event room throughout the show!

In this exclusive, first-of-its kind original interactive game, play with your tablemates to defend your "city" from the invasion of cultists! Will you secretly be a cultist yourself, luring your city to its own destruction and inviting in Mommy Elder One? Or will you be an investigator, singing Auld Lang Syne and keeping the otherworldly evils at bay, before the New Year's Eve clock strikes midnight, in 1924?

You won't want to miss this original game from the maddened minds at Good Time Society!

The H.P. Lovecraft Historical Society is proud to present its widely acclaimed and award-winning silent film of The Call of Cthulhu. A dying professor leaves his great-nephew a collection of documents pertaining to the Cthulhu Cult. Crossing decades and continents, the man begins piecing together the dread implications of the professor's inquiries.

Written in 1926, the famed story is brought richly to life in the style of a classic 1920s silent movie, with a haunting original symphonic score. Using the Mythoscope™ process — a mix of modern and vintage techniques — the HPLHS has worked to create the most authentic and faithful screen adaptation of a Lovecraft story ever attempted.

Get your tickets now!

An eccentric occultist holds an auction of rare occult items on New Year’s Eve in New York. Some of the bidders may be more than what they seem - and others may yet have nefarious goals.

Can the attendees protect themselves from a diabolical plot, or will they be fodder for a lunatic and his dark god? Featuring special guests Mark Meer.

In this strictly-limited workshop, Mike and Paul will demonstrate how they build and structure adventures, while workshopping your own ideas to help you flesh out and create your very own scenario of mythos horror.

A professional actor and storyteller, Mark Meer is best known for his role as Commander Shephard (Mass Effect), Chaz in L.A. By Night, and the Keeper of Arcane Lore in Chaosium's Graveyards of Arkham.

Don't miss this once-in-a-lifetime chance to play with the incomparable Mark Meer as Keeper!

Snap yourself and your friends in front of our New Year's Eve-themed Call of Cthulhu selfie wall!

Post your selfies online using the hashtag #TheStarsAreRight and you'll go into the draw to win 1 of 5 $100 gift vouchers for Chaosium.com!

Remember the night the stars were right with the event-exclusive commemorative Call of Cthulhu 1924 champagne flute!

Available only in ICC event room 134!

Free Events At Booth 511!

Attend this series of free community events hosted at the main Chaosium booth in the exhibit hall! Be sure to arrive early, as each event only runs for a limited time.

The masters of madness Mike Mason and Paul Fricker will be signing copies of Call of Cthulhu titles as well as Rivers of London: The Roleplaying Game on Saturday August 3rd at 10:30am-11:30am.

Get up close and personal with the horrors on the Orient Express thanks to Kuba Polkowski!

Kuba will be doing a live Q&A about Horror on the Orient Express: The Board Game on Thursday August 1st from 11am-12pm.

Our very own God of Glorantha, Jeff Richard, will be signing copies of RuneQuest books, and be on hand to answer all your burning Bronze Age mythology questions!

Catch Jeff at Chaosium booth 511 on Friday August 2nd at 2pm-3pm.

The cast of Call of Cthulhu: Graveyards of Arkham assemble at Chaosium booth 511!

Meet Noura Ibrahim, Paula Deming, and Keeper Mark Meer on Saturday August 3rd from 2pm-3pm.

Chaosium staff artist Loic Muzy will be signing both books and playmats available at booth 511!

Meet Loic between 10am and 11am on Friday, August 2nd.

abletop and roleplayer extraordinaire Becca Scott herself will be signing and taking photos at Chaosium booth 511!

Meet Becca between 12:30pm and 1:30pm on Friday, August 2nd!