the Dungeons and Dragons adventure I am running with my group, one of the resources I am constantly in need of is maps. Fortunately, there are a whole host of maps available online. Most of those, however, are either copyrighted materials or are only available for personal use. So while I don't have any plans on publishing my adventure in the near future, I still very much was hoping to find some maps that I could include in such a product should I decide to put something like that together.
And that's when I discovered Dyson's Dodecahedron. While the author originally used this page for RPG characters and thoughts about roleplaying in general and Dungeon's and Dragons specifically, what he is now known for is his amazing old-school maps. He publishes several such maps a week, each with a short blurb describing a possible adventure hook and/or the circumstances that led him to create the map. But even more remarkable, as long as his Patreon sponsorship continues above the $300 mark for a particular map, he releases them under a free commercial license. This means that anyone can use, reuse, remix and/or modify the maps on a royalty-free basis, with the only restriction being that they must include attribution such as“Cartography by Dyson Logos” or “Maps by Dyson Logos." You can view all the maps that have been released under this commercial license here.
This is a fantastic resource, and one that I highly recommend. Check it out for yourselves.