Son of Oak Game Studio has launched the Cauldron of Mist, a new community content program on DriveThruRPG that allows third-party creators to publish and sell their own supplements for the recently released Legend in the Mist TTRPG.
The new initiative rebrands and expands the studio’s previous “City of Mist Garage” program to encompass all games using the Mist Engine, including the award-winning City of Mist and :Otherscape. For creators, this means they can now write, design, and profit from their own rustic fantasy adventures, settings, and game expansions.
Under the terms of the program, creators will receive a 50% royalty on all sales made through the platform. Son of Oak is providing free templates and art packs to help authors produce polished content that matches the aesthetic of Legend in the Mist. The platform is exclusive, meaning any content created for the Cauldron of Mist cannot be sold elsewhere.
This move follows the successful digital launch of the Legend in the Mist Core Book, which quickly became a bestseller on DriveThruRPG. By opening the game to community creators so soon after its release, Son of Oak is building on this momentum and encouraging a grassroots ecosystem of content around its new fantasy system.
The guidelines outline what is permissible, covering everything from the use of game rules and canonical settings to content restrictions. Notably, the policy on AI-generated content defers to DriveThruRPG’s current guidelines, which require any products using AI art to be tagged as such and prohibit content primarily written by AI language generators.
Existing content from the City of Mist Garage will be automatically rolled into the new Cauldron of Mist program, ensuring a single hub for all community creations based on the Mist Engine.
For those looking to create for the platform, the Legend in the Mist Core Book is a required resource and is available now on DriveThruRPG.
