Originally Posted by lunatis
Another tricky part is the trademarks:
While some terms like WoD and WW are obviously trademarked, you cannot know for sure what else falls under trademarks. As a rule of thumb: don't refer to any RPG company or any product titles by an RPG company (you can use their abbreviations, though). Even "Vampire" is a registered trademark by WW! Your "product", the module, must not give the impression that it is affiliated with WW, so you cannot give it a name that makes use of the terms "storyteller system" or "storytelling system" (not even saying it is compatible to) because these are registered trademarks. You can check the credits page of a recent WW publication to see a list of trademarks that have been registered (though this doesn't mean they haven't registered more). I know, it makes it hard to advertise your module if you cannot say that it is meant for playing WW products, but that exactly is the point of trademark law! As a suggestion, you can name the module "WW system rules", "oWoD sytem rules" or "nWoD system rules" as this will give most people a clue as to what it is about without infringing on trademarks. Just in case, your module should also point out that