Played it as promised! About an hour on desktop, got to night 8.
I love the art style, and the music is pretty good. The best thing for me is the enemy design. What surprised me is how many different games are in this one game: tower defense, bullet hell and a shooter.
Biggest problem: too much going on at once without a clear explanation. My character would level up for apparently no reason, from mundane things like looking at something, and a lot of the mechanics are unexplained. My suggestion would be to slow the game down at the start and make it longer, showing all the mechanics properly, more like a tutorial.
Bug: the right side of the war table sometimes gets cut off at the right edge of the screen.
I would play it again, the game shows real promise. What did you use to make the visual assets?