Hi, thanks for playing, this is my first published game and my first jam too, so your comments are really important for me
To pass the 3rd lvl you can farm coins replaying the lvls you win, you only louse the coins you expend on units, but keep what you win.
I know it shouldn't be this way, that it should have at least one way win without habing to go back and re playing but, i didn't have enough time to test it. You also could low de dificulty in the setup menu, that affect the amount of coins you win.
I can't modify the game until the jam is over, but i will try to upload a patch version in the github repository more balanced.
I really apreciate you took time to play and message me, so thank you a lot. I will keep this in mind in my future games too.
So see you arround bro!