It was a fun game idea. It wasn't on the same level as Galcon, but it couldn't be for a gamejam. All the required pieces are there though, if you ever want to improve upon it.
For feedback I'd say: I too found that the pathing seemed to be a bit flaky at times. It worked well enough I finished 3 levels though.
I just wasn't sure whether I was assigning gnomes to a path or sending them on a new one. My advice, If it's a management game, then making reusable paths is a good way to go. If it's an action game, then making single-use paths makes more sense to me, then you can assign what ever percentage is in that town to go out.
On the third level I attacked the Red's mushroom house at the start, it went to 0 but didn't become mine (blue). Perhaps a bug there.
The music was nice, the graphics worked well for the game, and the enemy was smart enough. So lots of good things.