First thing I noticed was that the "Options" and "Credits" buttons in the main menu don't work. I'm using a 4K monitor, and most of the text was REALLY small and hard to read. It took a while to load the game, and I also noticed some framerate issues, mostly when trying to move the map around.
After the game started, I suddenly realized I had no idea what to do. A tutorial for brainlets would be nice.
I really like the art and aesthetics. Just fix the technical issues, and this could be a good one.