I have a few adventures that could or dont need to include world info that I would enjoy fleshing out in detail to add as modules on the marketplace. They would be based off the 5th edition game rules but without getting permission from wizards of the coast since I know I won't. How can I put anything out that wouldn't be copyright material or the like? Can I even reference that the dm would need the core rules books in my story? Does it need to not include any of their monsters? Where would I learn any of this? Any help would be great and also i hope I put this in the right section, I always feel I can't find the right areas on the forum for my questions so sorry in advance.