Welcome to Cthulhu’s Foundry!

As a Cthulhu Mythos fan, you already know that Sandy Petersen’s Cthulhu Mythos is a comprehensive guide to including Lovecraftian elements in your Roleplaying Games. Plus, campaigns such as Ghoul Island and The Big Sleep offer further horrifying mysteries to explore. Now, you can expand on the Mythos with new campaigns and other nightmares!

The Cthulhu’s Foundry is our official community marketplace where you can find, create, and sell self-published material for Sandy Petersen’s Cthulhu Mythos 5E. Creators can offer their work for free, set a price, or make it pay-what-you-want. The Foundry offers ample tools and resources to help you out with your creations, and a marketplace for all Cthulhu Mythos fans!

What’s in the Foundry?

The Cthulhu’s Foundry is made for fan-created campaigns, bestiaries, new or alternative locations, NPC collections, pre-generated characters, and more.

How can I publish content for the Foundry?

First off, please read the Cthulhu’s Foundry Content Guidelines and FAQ, to get a sense of what you can and can’t share or put up for sale. Our creator resources include templates and artwork for you to use that meet our specifications for Cthulhu’s Foundry content.

When your content is ready, go to your account page and look in the My Content section. You can use the “Add a new title” link after you agree to the Community Content Agreement.

Once your content is published, it can be found in the Cthulhu’s Foundry. You’ll be able to check your sales history, view reviews, and check on sales royalties using your Account page on DriveThruRPG. The “My Money” section of your Account page will allow you to withdraw royalties via PayPal.