For some reason I can't fathom, Roll20 doesn't allow you to share campaigns, and content from campaigns with other users. The technology exists to do this, because when you craete a new campaign, there are two sample pre-created modules already provided. I am a prolific creator of campaigns, and like to create macros to support specific systems, character sheets, etc. What I'd like to be able to do is share some of this work with other GMs. I do NOT want to share art assets, or create specific adventure modules. I want to create collections of technical tools (a campaign framework for a specific game, with macros supporting that game, a character sheet for each class/template, handouts for SRD'd rules information, custom card decks for tracking expendable resources like spells, etc. and documentation to get up and running with them), which would allow other GMs to get started playing specific games with a minimum of work. At present, Roll20 does offer creators a way to share campaigns: they can apply to sell their campaigns on the marketplace, but the guidelines are clearly focussed on maps and other art assets: For instance, the guidelines on becomeing a creator ( <a href="https://marketplace.roll20.net/home/becomecreator" rel="nofollow">https://marketplace.roll20.net/home/becomecreator</a> ) include this text: E-mail us (<a href="mailto:team@roll20.net" rel="nofollow">team@roll20.net</a>) with some artwork samples (they don't have to specifically be for the tabletop-- any portfolio items that establish your skill will do) and an idea of what sort of content you would like to provide. If your email does not include art samples, it will be ignored. I think this is too restrictive, and I honestly dont understand why roll20 makes it impossible to share campaigns or some kind of campaign framework.