Creating an application to streamline Dungeons and Dragons I've been working on an application that would streamline the average Dungeons and Dragons 5e tabletop experience, and it only recently occurred to me that doing so may infringe on copyrights. Basically, the goal is to help players and DMs track action economy, initiative, spells, etc., by listing options and showing descriptions, many of which would come from Wizards of the Coast-published materials. I know that some of this may be covered by either the Creative Commons license or the OGL it was published under, but it's not clear to me how far those freedoms extend.
I know that some of this may be covered by either the Creative Commons license or the OGL it was published under, but it's not clear to me how far those freedoms extend. It was all published as materials under copyright to the original authors, TSR, WotC, &amp;c. and if things had been left like that hszmv's answer would've been completely correct: stay vague and allow users to enter those names and descriptions, talk to WotC's lawyers and sales department about license fees, or just keep it to yourself and your friends. You're right, though: WotC went whole-hog, dumped their partial OGL idea, and relicensed some things as Creative Commons. There are different Creative Commons licenses, though, some restricting commercial use that would still keep your app to yourself and friends without a specific licensing agreement. Go find out exactly what WotC put under CC. If it's only the Player's Handbook, then you can only use names and descriptions that are from the Player's Handbook and you're still facing a cease-&amp;-desist if you start adding in Monster Manual info.If it's everything, it's everything they have but still won't include any older modules that they don't have the right to change the copyright status of. It'll still be under copyright, usually until 70 years after the death of the original creator. For Gary Gygax, that'll be 2078. Expect that length to extend during your lifetime though. US copyright usually extends every time Mickey &amp; friends come close to entering the public domain. [Edit: The comments below suggest it might only have been the Systems Reference Document (I assume for 5e). It's 403 pages of not nothing but it's not much given the universe we're talking about. The spell and monster lists are generic. Bigby is nowhere to be found and the only mention of a beholder is a reminder not to use the name beholder without their written approval.] Go find out exactly which CC WotC used. The article above says &quot;all use&quot; but you need to find out the exact number of the Creative Commons license for each thing you're using and make sure all of your uses fall within its terms. Some are basically free use but still insist you mention the copyright holder prominently or in every use. Go ahead and do that if you have to. [Edit: The comments below say it is probably CC 4.0. The SRD download page says you can use CC 4.0 or their own OGL. In both cases, yes, you must acknowledge WotC by name in a way prominent enough to satisfy the license you choose.] And of course, Don't trust legal advice from internet randos or ChatGPT. If this is a serious thing you're going to be spending a good chunk of your life working on or expect to make significant money from, go talk to an actual lawyer. Bonus points for one specialized in IP with a knowledge of roleplaying and the way it's been (partially) opening up lately.If you start off just by talking to WotC's lawyers, just do that somewhere where you get their explanations and permissions in writing. Then keep that somewhere safe in electronic and hard copy. Then still take that with you when you go talk to your own lawyer.
The GCIDE dictionary itself is licensed under GPL-3.0. It consists of a bunch of files with markup, no software involved. Indeed, the GPL can also be applied to non-software works, though it is unusual. When you use material under some license, you must comply with the terms of the license. In case of the GPL, there are two highly relevant conditions: Everyone who receives a copy of the covered work (original or modified, in whole or in part) must receive the complete corresponding source code of the work, under the terms of the GPL-3.0. If you create a derivative work of the covered work, the derivative work can only be distributed under the GPL-3.0. However, selling the covered material is perfectly fine. The GPL does not forbid you to make money, however you must not profit from your requirement to provide the corresponding source code. Here, the core question is whether your mobile game would be a derivative work of the GPL-licensed dictionary. If your game merely loads the dictionary as a data file, I don't think they would form a single derived work. However, if you compile the dictionary into your app, this would be more difficult to argue. Ultimately, what is a derivative work will depend on a court. It could therefore be helpful to keep your app as clearly non-derivative as possible. I would avoid baking the dictionary into the app's binary but store it separately as a data file, would show attribution notices in reasonable places (e.g. a screen with attribution notices and the complete license text), and would make it possible for users to export a copy of the dictionary files. Furthermore, the GPL-3.0 may require you to allow users to modify this file, for example by making it possible to import a modified dictionary into your app.
Monopoly is a trademark of Parker Brothers. You would need to get permission to use that trademark. The artwork of the game is copyrighted and cannot be duplicated without violating that copyright. In general, the labels meaning phrases like "Go to Jail" and "New York Avenue" are probably copyrighted and some court decisions have decided that labels are a copyrightable element. However, there is some gray area. The game mechanics are not copyrightable and can be duplicated. What this means is that if you clone the game and use new labels (like new property names and card titles) then you are probably fine. You would have to make a novel board design. If you clone the game, but use the game's labels, then you could potentially lose in court. Of course, remember that corporations will sometimes sue just to intimidate people, even if they have a losing case. Just because your clone is non-infringing doesn't mean they won't sue you. It costs them money to sue people, so if your clone is obscure or not used by many people it could fly under the radar and be ignored by the company. If your clone was a success and became widely used, that would significantly increase the chance you could get sued. In most cases a company will threaten infringers before they sue them, because it is a lot cheaper to threaten somebody than sue them. Therefore, you could make your clone and just plan on discontinuing it if they threaten you. Of course, there is a small risk they would sue you anyway. If you made no money then you are probably safe because it would be a lot harder for them to argue that you commercially damaged them if you made no money.
One cannot use the works of others unless one of the following applies: The copyright holder has given permission, usually in the form of a license, often explicit, but sometimes implied. The work is not protected by copyright. This can happen in several ways, but the most common is that the work is old enough that copyright has expired. In the US, works older than 1927 are currently out of copyright. So are some others, the rules are a bit complex. In many countries, if the author or creator died more than 70 years ago, the work is out of copyright. In some countries this is a different number, between 50 and 100 years. This is not likely to apply to a file distributed with current software. If an exception to copyright applies. In the US this would most likely be fair use. In the UK it would probably be fair dealing. In other countries there are a variety of exceptions that might apply, including personal use in some. AS a comment by Jen points out &quot;use&quot; here refers only to those rights protected by copyright, such as making and distributing copied, making nd distributing derivative works, and the like. (Displaying and publicly performing seem unlikely to apply.) Now lets consider the specific situation, and which if any of the reasons for lawful use might apply. License or other permission. There is no explicit license. Since the program is distributed to be run, there is an implicit license to make the sort of use of the file needed to run the program. If the documentation describes how to employ the file as part of running the program, there is almost surely an implied license to employ it in that way. There is not, however, permission to make copies unless that is needed to run the program. There is surely not permission to make derivative works of the file or distribute copies to others, even if you do not charge anything. Expired copyright This pretty clearly will not apply. Fair use This might apply, or might not. There isn't enough info in the question to tell, not even to make a good guess. If any use would be non commercial, that helps fair use a bit. If the use would be for a different purpose than the one the developers used it for, that helps fair use a lot. If the use of the file harmed the market for the program, or served as a substitute, that lean against fair use. without knowing what the file is, what it does, and how it might be used, one really cannot weven guess.
In general this kind of brief literary reference is not unlawful, and such things occur in both novels and commercial games with some frequency. Making such a reference a major part of the plot, such as by using a name from a previous work as a major character, particularly if other aspects of that character are also used, is far more likely to cause a problem. In the united-states this would be a matter of fair use. In general, when only a very small part of the source work is used, such a a single name; where the use is &quot;transformative&quot;, that is used for a rather different purpose than in the source work; where the use does not harm the market for the original work; and where the use does not serve as a replacement for the original, it is likely to be held to be fair use. But fair use decisions are always fact-dependent, and are made case-by-case, so it is hard to be absolutely sure of one in advance. But the kind of literary reference described in the question is very unlikely to be held to be copyright infringement.
Recipe books can be, and often are, protected by copyright. If the individual recipes are by others, this would constitute a collective work or compilation. See this recent answer for more on the rights protected for a collective work. The selection of which recipes to include would be a creative element, protected by copyright, and could not be copied or closely imitated without permission. However, division into groups by type of dish would be a &quot;natural and obvious&quot; arrangement, and not protected. So would alphabetical or chronological arrangement within a group, or over all. A &quot;non-obvious&quot; order of recipes would however be a protectable element. An individual recipe may be protected by copyright, but this protects less than one might think. Copyright does not protect facts or methods. This means that the list of ingredients is not protected, nor is the general list of steps of preparation. Only the exact wording of the recipe will be protected. Creating a new collection of recipes based on several different previously published collections of recipes (whether from the web, books, magazines, or other media) and making one's own selections of which ones to include that is significantly different from any of the previous collections would not violate the collection copyrights of any of the previous collections. If the actual recipes were rewritten so that any creative expression from the originals was not copied, then it seems that no copyright infringement has occurred. Most recipes, after all, are not fully original but are modified from older ones. There is no set figure for how many recipes could be copied from a given source before this becomes infringement. That would be, if a suit was field, a matter for the judgement of the count as to whether the new book was &quot;based on&quot; the alleged source. The more the list in the new work resembles a particular source, the more like a derivative work it seems and the more likely that it would be held to be an infringement. One could always ask for a license from the older source, to avoid any risk of suit, but it might not be available or the copyright holder might demand an excessive fee. Asking for a license risks drawing attention to the new work, as well, and might cause a holder to file suit who otherwise would not.
united-states Under US copyright law blank forms generally do not have copyright protection, because they do not have sufficient originality to quslify for copyright under the doctrine of Feist vs Rural. According to the US Copyright Office Circular 33: &quot;Works Not Protected by Copyright&quot; (pages 3-4): Blank forms typically contain empty fields or lined spaces as well as words or short phrases that identify the content that should be recorded in each field or space. Blank forms that are designed for recording information and do not themselves convey information are uncopyrightable. Similarly, the ideas or principles behind a blank form, the systems or methods implemented by a form, or the form’s functional layout are not protected by copyright. A blank form may incorporate images or text that is sufficiently creative to be protected by copyright. For example, bank checks may be registered if they contain pictorial decoration that is sufficiently creative. Contracts, insurance policies, and other documents with “fill-in” spaces may also be registered if there is sufficient literary authorship that is not standard or functional. In all cases, the registration covers only the original textual or pictorial expression that the author contributed to the work, but does not cover the blank form or other uncopyrightable elements that the form may contain. A trademarekd name or logo could be used nominally to show compatibility with the trademarked product, such as: This character sheet is compatible with the game &quot;GreatRPG&quot;(tm) and is suitable for recording characters to be used in that game. However these sheets are not made, approved, authorized, or sponsored by Heartland Mages, who own the trademark &quot;GreatRPG&quot;. They are a product of &quot;MySheets&quot; which is in no way affiliated with Heartland Mages. Used with that sort of disclaimer, there will be no trademark infringement. And of course if the name and/or logo of the RPG is not used at all, there wiull also be no infringement. However, if the name of the game is used in advertising the sheets, or on the packaging of the sheets, it should be made clear to any consumer that the sheets are not authorized by the maker of the game. A disclaimer similar to the above serves this purpose. If reasonable people could be confused into thinking that the sheets came from the makers of the game, or were approved by the makers, there might be a valid action for trademark infringement.
Content posted to the web is usually openly accessible to all (unless protected by a password, paywall, or similar restriction). But that does not mean it is freely copyable by all. Such content is protected by copyright in just the same way as if it had been published in a book of essays by various contributors. Unless the copyright holders (who are likely to be the original authors, but might not be) give permission, or an exception to copyright applies, copying such content would be clear and obvious copyright infringement, and any copyright holder could sue for damages. Permission could be given by publishing the content under a permissive license, such as a CC-BY-SA license, or any of many other available permissive licenses. Or a would-be reuser could find the copyright holders and ask for permission. If the holder cannot be found or identified, or does not respond, then no permission has been granted. In the US the main exception to copyright is fair use. See this answer and other threads with the fair-use tag here for more on fair use. Since the question seems to contemplate using the whole of the posted content, since it might well damage any potential market for that content, and since the use does not seem to be &quot;transformative&quot;, nor used for criticism or comment, a finding of fair use for this situation seems unlikely. But Fair use findings are very much fact-driven, and the exact facts do matter. Thus I cannot be at all sure whether a court would find this toi be fair use or not. In other countries there are a variety of exceptions to copyright, and I have not come close to reviewing them all. But none of the ones I know of seem to apply to the situation described in the question. Many are narrower than the US concept of fair use. I fear that without permission, copying this content would be infringement. However, it would not be infringement to create a site that includes a link to the existing content, and a summary or description of that content, along with new content, including comments on the old, with brief quotes to indicate what is being commented on.