Had a good time with your game until it crashed. I really love the dwarf fortress look and feel, and the music is good (but too loud). The tutorial worked great. I was a bit frustrated I can't have more workers dwarfs to scale up the defense especially in the harder modes. The engine works like a charm though.
The crash is: panicked at src/designate_tool.rs:186:45: index out of bounds: the len is 60 but the index is 60