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A couple of months ago I introduced the Heart of Darkling series of maps. Unlike my other ongoing megadungeon (the Tekumel Undercity maps), the Heart of Darkling series is being released for commercial use as the maps are drawn. The goal of the project is to produce 20 maps that are all tied together by a single underground river and lake.

Heart of Darkling - Swiftwater Monastery

Heart of Darkling – Swiftwater Monastery

Swiftwater Monastery is cut into the caves where a smaller and faster tributary of the Darkling River joins it.  The monastery has a number of cells for monks in the central section, the main entry in the left section, and library, master’s chambers, and meditation room in the lower right. Each section is built around a “courtyard” with a high ceiling for training, practice and meditations. The sections are connected by bridges which pass above the two rivers – ten feet above for the one on the left over the Darkling itself, and about three feet above the Swiftwater on the right.

Swiftwater Monastery was an experiment with changing the orientation of the grid and thus the orientation of the dungeon from section to section. I do like how it turned out.


This map is made available to you under a free license for personal or commercial use thanks to the awesome supporters of my Patreon Campaign. Over 400 amazingly generous people 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 these maps free for commercial use also. Each month while funding is over the $300 mark, each map that achieves the $300+ funding level will be released under this free commercial license. You can use, reuse, remix and/or modify the maps that are being published under this commercial license on a royalty-free basis as long as they include attribution (“Cartography by Dyson Logos” or “Maps by Dyson Logos”). For those that want/need a Creative Commons license, it would look something like this:

Creative Commons LicenseCartography by Dyson Logos is licensed
under a Creative Commons Attribution 4.0 International License.