Hello Alex M., I have moved your post to the Specific Use Questions & Macros forum. Thanks for asking for clarification. If your campaign is intended for adults, 18 and older, and not for kids 17 and under, it is to be marked as 18+. Everything on the Roll20 site must be PG-13 and lower. This would be a good guideline for how to mark games as 18+ as well. Furthermore, if you are questioning whether or not the content is for mature audiences or not, it is best to err on the side of caution and mark it as 18+. If you have a question on specific content being appropriate or not, feel free to email the devs at <a href="mailto:Team@Roll20.net" rel="nofollow">Team@Roll20.net</a> . We hope this information helps.