This is kind of an odd one to judge. Mechanically, this almost exists in a vacuum, and could be attributed to any fantasy TTRPG with 6 ability scores and that general rate for gold. However, this is very well put together. The rules seem solid and have a comparable cognitive load to base shadowdark, maybe going a little more convoluted at points.

Also for general feedback (I'm not counting this in my grade), the rules read as if they assume the audience is familiar with TTRPG warfare mechanics. It didn't totally click how battles worked until page 4, so everything before that lacked context. I would put the battle mechanics first and elaborate on how it gets set up and can play out.

Really cool rules supplement!
Battle seems to walk the line between simple to run and having enough options to keep things varied.
I especially liked how Recruiting is sort of an altered form of Carousing, doing something specific to this system using preexisting rule framework.