The game almost crushed my browser on load - I gues that's something to do with particles loading? I don't know, but it took like 3 minutes to load and I couldn't even switch the tab.
But I quite liked the game! It was a bit confusing that they disappeared in the bank etc., but it gets smoother when you learn the things :) It would be cool to be able to destroy buildings, though. And also I wish bank wouldn't take by upgraded guys to exchange for coins :) But that's a jam, so it's totally understandable. I'd also choose a different place for your tutorial, though - it conceals too much of the screen.
That said -it's a really cool game, it kind of combines the colony-sim-like game with base-defence. I'd be happy to play a polish version!
Also, kudos for Godot!