If you're a tabletop RPG player who has spent a lot of time building adventures and characters for the fifth edition of Dungeons & Dragons, you might be able to make a little money from your creations. The new "Dungeon Masters Guild," a partnership between D&D publisher Wizards of the Coast and online marketplace OneBookshelf, lets players self-publish campaigns, characters, classes, monsters, and all kinds of other fifth edition-compatible content for whatever price they want (including free). Sellers will receive half the money earned from their creations, as outlined on this FAQ page.

Players can rate user-submitted content, and Wizards of the Coast can "consider" especially well-rated or successful content for official publication or for marketing purposes. The primary restrictions are that your content can only be sold in the digital storefront and that any campaigns must be set in the "Forgotten Realms" setting used by all other official D&D content.

For those who want to create their own game worlds or for those who want to make entirely separate RPGs based on the fifth-edition rules, Wizards has also released a "Systems Reference Document" for the fifth-edition rules under the Open Game License (OGL). These adventures and games can't be sold in the official digital storefront, but publishers are free to print and digitally publish their own works as long as they adhere to the license.

The fourth edition of D&D was never licensed under the OGL, so games like Pathfinder continued to use third-edition rules instead; for those games, this is a chance to bring their games in line with the new rules for the first time in years. For vanilla D&D players, the online storefront is a quick and easy way to expand the official content offered in the fifth-edition Player's Handbook, Monster Manual, and Dungeon Master's Guide.