It is a very nice map. I am a big fan of sewer systems. I assume this map is intentionally designed in a labyrinthine manner for plot purposes.
Just as an aside, more realistic sewer systems are generally (there are always exceptions) built very similar to how rivers work. They have a tree-like structure and the size of the pipes is bigger depending on the volume of fluid they carry because, like rivers, they are gravity driven. And they usually empty out into a swamp, river or the coast.
Larb, thanks for the insight, I hadn't thought of it like that! This map was definitely designed with plot in mind over any real functional purpose. Cheers!
Very cool. I am also a big fan of "sewer crawls" Have some rep
Kingdom Of Shendenflar Campaign Setting (WIP)
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Even if I am correct, I would still advise you to follow your heart. This whole Cartographers Guild thing, it seems to me, is more about passion and skill and learning new techniques than it is about definitions and rules.