Welcome to the realms of mind-shattering mysteries, eldritch horrors, and two-fisted action set in the literary world of the Cthulhu Mythos!
You may already know about the Call of Cthulhu Roleplaying Game by Chaosium – available on Roll20 and DriveThruRPG – and its rulebooks, adventures, and supplements for spells and monsters. But what if I told you that the horror doesn’t end there?
Keepers looking for new scenarios and story elements? Players looking for something to spark a character idea? The Miskatonic Repository is where you can find — and create — self-published material for Call of Cthulhu 7th Edition using DriveThruRPG and Roll20!
The Doors Have Opened…
This summer we announced that Chaosium allows for Roll20 VTT conversions of Miskatonic Repository content. Miskatonic Repository is the Community Content Program for Call of Cthulhu 7th Edition. This program has been around since December of 2017 on DriveThruRPG and has become one of the most extensive programs since. Hundreds of scenarios, characters, and much more are available to buy in print and digital formats on DriveThru.
With the opening of Roll20 creation, you can play these fantastic titles on Roll20 now, too!

What is a Roll20 VTT conversion?
Roll20 Virtual Tabletop conversions break PDFs into NPC sheets/tokens, linked handouts, dynamically lit maps, and other award-winning features to make your online and in-person games immersive. On Roll20, you can instantly drag and drop monsters, spells, and equipment on your character sheets and the VTT. Players and GMs can also use our officially licensed Charactermancer, a guide that streamlines the character creation process.
How do I purchase the Roll20 VTT conversions of Miskatonic Repository content?
After you add Roll20 item(s) to your DriveThruRPG cart, you will be prompted to enter your Roll20 account email. After completing your order, you will see a confirmation message, including a link to your Marketplace items on Roll20. Head to Roll20 and log in. You can now create new games with Modules, add any Addons to existing games, and access newly acquired art packs inside the VTT Art Library.
New Releases
Just in time for Halloween, we have 3 brand new Roll20 titles available. Our team has converted these releases, and we are thrilled to show them off!
💔 Of Sorrow and Clay
By Graeme Patrick
Bundle | Roll20 VTT
Family is everything in the Appalachian Mountains. When everyone else turns their backs, they will be there, waiting. Of Sorrow & Clay delves deep into the history of an old Moonshiner, Carson Taft, and his family. At the ripe age of 89, he has gone missing in the deep forests of Kentucky. This scenario comes with 5 pre-generated investigators with ties to the plot!

🩸 Highway of Blood
By Critical Hit Publishing
Bundle | Roll20 VTT
Set in West Texas during the 1970s, Highway of Blood pays homage to classic “grindhouse” and exploitation films. The adventure features a fast-paced car chase combat and explores the dangers of isolation, dehydration, and intense heat associated with an extreme desert environment. This scenario comes with rules for dealing with radioactive and environmental desert hazards.

🚪 The Room With No Doors
By M.T. Black
Bundle | Roll20 VTT
NO DOORS, NO LIGHT, ETERNAL NIGHT. When Hannah Flynn buys a new house in Arkham, she encounters tragedy and misfortune. She hires the characters to investigate, and they uncover the grim history of the residence before confronting its nightmare secret!

🐙 Check out more Miskatonic Repository scenarios here…
🐙 Learn how to create and publish your own products here…
🐙 Learn how to convert your scenarios into Roll20 VTT products here…
Check out free Call of Cthulhu content and ways to play on Roll20 below.

Roll20 Characters and Free Basic Rules
With the new and improved Character Vault, you can create unlimited Call of Cthulhu characters outside of the virtual tabletop and import them into your games! You can make both standard Call of Cthulhu Investigators or Pulp Cthulhu Heroes.
And you can do all of this for free with Chaosium and Roll20’s Free Basic Rules for Call of Cthulhu – and now Pulp Cthulhu! I, for one, love the option to learn the basics of a game for free before committing to buying an entire rulebook. All the free content can be accessed in the Roll20 Character Vault or any game you make with the Call of Cthulhu 7th Edition Character Sheet by Roll20!
Check out Chaosium’s entire catalog of Call of Cthulhu, Pendragon, and more on Roll20 and DriveThruRPG!
