Every month we go through our back catalogue of maps and the many amazing supporters of the blog over on Patreon vote on which two should be re-released under the free commercial use license. Our first release this month (by a significant margin) is this map I drew using the Dungeoneer’s Survival Guide.

When I got a copy of the Dungeoneer’s Survival Guide some 36 years ago, it was a flood of information, rules I would consistently ignore, scraps about the underdark for the first time since the D series of adventures…

And a collection of pages at the back on drawing perspective-based maps. Not the isometric (axonometric) projections of Castle Ravenloft, but grids set at various perspectives and rotations along with instructions on photocopying and cutting them up, or tracing them in order to draw multi-tiered maps of some of the larger spaces in the underdark.

33 years after buying the book, I finally did it, and today we’re re-releasing it under the commercial use license.

I ended up choosing a grid that looks a lot like an isometric projection instead of a perspective piece, and following the directions for tracing the grid for a section, then moving the grid and tracing the next section produces very… vertical separations between elevations.

The end result is a multi-tiered open space to explore – a large uneven “cave” (that has definitely been modified by the residents over the ages) with ramps and stairs between sections.

This map is made available to you under a free license for personal or commercial use under the “RELEASE THE KRAKEN” initiative thanks to the awesome supporters of my Patreon Campaign. Over 900 awesome patrons have come together to fund the site and these maps, making them free for your use.

Because of the incredible generosity of my patrons, I’m able to make this map free for commercial use also. Each month while funding is over the $400 mark, we choose a map from the blog’s extensive back catalogue to retroactively release under this free commercial license. You can use, reuse, remix and/or modify the maps that are being published under the commercial license on a royalty-free basis as long as they include attribution (“Cartography by Dyson Logos” or “Maps by Dyson Logos”).

Please note that the text and name of the map are NOT released under this license, nor is the low resolution version of the map (on the brown paper background) and cannot be used in conjunction with this map in a commercial project.