Pretty fun! I like tower defense games though I'm not very strategic with them most of the time. It took me until the second run to realize that I could manually gather stones myself, I thought all I could do was assign workers the first time. That said, even mashing space to get a ton of stones wasn't enough to offset the increase in purchase cost.
Did you know that while the player is holding a turret to place, it actually fires at enemies? This gives you a fully mobile weapon you can bring to any area of the map, the only 'price' for it is that the game is much slower during placement mode. However, even with that I was quickly overwhelmed when the tower prices soared up past 300 and the enemies poured in faster and more resilient each time.
