Richard B. said: Ladies & Gents Hoping that someone who has experience of creating content for the Roll20 MarketPlace can help me with some answers to these questions. I'm looking to release a "one-off" dungeon for D&D fifth edition. I'm a "bullet-point" kind of guy so here goes: 1) Can I include tokens from the D&D PHB & Monster Manual and include in the description for the game that the purchaser needs to have bought these books? 2) In the above scenario, what would happen if people purchased my game but didn't have this content? Would the tokens come through with some kind of "missing" graphic? 3) A similar question, but I presume that I am allowed to use "normal" D&D 5e monsters in any published game or do I need to create custom-monsters? Thanks - any help very much appreciated. Stay safe people Richard. I have released several SRD products on Roll20 and wanted to expand on the good information that others have already listed. First, follow Keith's guidance and read the Open Gaming License (OGL) page in the System Resource Document (SRD) and follow it completely as you create your product. Second, the only WotC content you can include in your product is what is in the SRD. For example, if a spell is listed in the PHB but not the SRD, you may not use it . As for your specific questions: No, you may not mention any WotC product in your product. You may not even mention Dungeons and Dragons. Most people get around this by saying their product is "5e" or "Fifth Edition" compatible since those words are not protected. What you can do is link into the 5e compendium. If you open a compendium entry that has a link to what you want to link to, you can copy that hyperlink into a handout in your product. Then the user click's on the link and opens the relevant entry in the compendium. You should only do this with SRD entries, though. While you are creating your product, you can go into the game settings page and disable all compendium expansions. This will leave you with just the SRD content. You can only include content in your product that is your original work or that you have explicit permission to use. For game text, that usual means products that are released under the OGL, such as the SRD. Each OGL product lists what can be reused and what cannot. For example, the SRD explicitly mentions many proper names that may not be reused (such as Underdark), and the SRD contains alternate titles for some items (such as acid arrow instead of melf's acid arrow ). For art, it needs to be stock art, creative commons, original, or commissioned, and you have to follow any credit requirements in your product. Since you cannot even mention the other WotC products, the scenario in your question should go away. You may use monsters released under the OGL. This includes those monsters in the SRD. Don't forget that you must include a copy of the OGL in it's entirety in your product and that your copy in section 15 must cite each OGL product from which you have pulled content. You will find things much more affordable to use stock art from a site such as drivethrurpg.com rather than commissioning an artist. A site such drivethrurpg.com has lots of art, and the Jacob Blackmon art from Rogue Genius Games is quite affordable there (especially during sales). Dungeondraft is a good resource for making your own maps. Realize that the minimum price for a marketplace product is $4.99, so your one shot / one-off dungeon needs to be worth that. I am not speaking for Roll20 , but my assessment of their guidance is that a one shot should cover at least 2 (and preferably 4) hours of gameplay.