The Engine
MarrowMyth: The World Engine is an original proprietary narrative system created and maintained by F.C. Marrow. The engine itself — its structure, systems, mechanics, and framework — is and remains the exclusive intellectual property of MarrowMyth and F.C. Marrow. All rights reserved.
Your Content
The stories, characters, settings, lore, and creative content generated within a World Engine by its users are the intellectual property of those users — provided that content originates from their own original ideas. MarrowMyth makes no claim of ownership over user-created narratives or original worlds built and played within the engine. You made it. It's yours.
MarrowMyth has no access to the stories played within any World Engine. F.C. Marrow does not see them, does not record them, and holds no claim over them. No data from your sessions is collected, stored, or reviewed by MarrowMyth in any form. What happens inside your world stays in your world.
Third-Party Intellectual Property
Some World Engine applications — including fan-made worlds and collaborative roleplay utilities — may reference or incorporate elements from pre-existing third-party intellectual property. These uses are strictly non-commercial, unofficial, and intended solely for private, personal enjoyment. In these cases, any third-party IP remains the property of its original owners. MarrowMyth claims no ownership over it, and neither does the user.
Any pre-existing intellectual property, trademarks, copyrighted materials, settings, characters, or brands presented or referenced within any World Engine application remain the exclusive property of their respective owners and creators. No ownership, challenge, or claim is asserted over any third-party intellectual property by MarrowMyth or its users.
World Engine applications utilizing third-party intellectual property are provided strictly for private, personal, and non-commercial fanfiction, collaborative storytelling, and roleplay purposes. They are not intended for sale, public distribution, monetization, or commercial use of any kind.
Generated Content
MarrowMyth and F.C. Marrow accept no responsibility for the content generated by any World Engine once it is in the hands of the user. The nature, direction, and tone of all generated content is determined entirely by the user — through their own inputs, their chosen AI provider, and the content toggles available within the engine.
Content restrictions are the user's responsibility. The tools to set and adjust those restrictions are provided within the engine itself. MarrowMyth does not monitor, moderate, or control what users generate during their sessions.
No Infringement Intended
No copyright infringement is intended. All rights to original third-party intellectual property are acknowledged and respected. Any unauthorized use, reproduction, or distribution of World Engine content or utilities is prohibited.
Original Intellectual Property
All original worlds, characters, lore, and settings created by F.C. Marrow are the intellectual property of their creator and may not be reproduced, distributed, or used without permission. This includes but is not limited to: AYEI: The Broken Seed, The Afflicted, Tempestsea, Bitter Indulgences, Where the Wind Lives, and all associated characters, factions, settings, and narrative content originating from F.C. Marrow. All rights reserved.
Custom Commissions
A Patreon subscription is not required to commission a custom World Engine. Patreon membership grants access to F.C. Marrow's own personal worlds; a commission is a separate, standalone service. You bring your concept, and MarrowMyth builds your world — no ongoing subscription needed.
Every custom-commissioned World Engine is delivered to run locally on the commissioner's own system. It lives on your machine — yours to keep, yours to run, with no dependency on MarrowMyth's servers or any continued membership to access it.
Password Sharing
Each Patreon member receives a unique access password. If your password is shared, you will not be issued a new one during the monthly rotation. Sharing your password hurts no one but you.
For commissions, custom World Engine inquiries, or general questions, please contact us here.