One of the best submission, clearly this game is a gem well polished 💎
I played until day 24 and then quit because I don't feel like I could loose at this point of the game, I got towers almost every corner.
I think this is the main point to improve after the jam : add more uncertainty to the gameplay, maybe don't indicate from which side invaders will come.
I think at day 10, there isn't much new things to do and quite no more difficulty to the game.
Maybe consider twisting a bit the Age of Empire formula to really make this game special.
Once again a big congrats, your game is really great !