Wow, what an amazing UX! Lot of little animations, audio feed-back, icons, transition, clarity... I'm really impressed, especially for a game jam, and knowing how tricky it can be to build GUI in Godot.
The game itself is pretty deep as well! Remind me a bit civilization (and why I'm terrible at it). I'm not good enough to say if it's balance or not, but it sure was interesting enough for me!