Thanks! Glad you had fun with the game.
As far as the game pretty easy, I'd agree. Originally, the enemies would come more frequently, but it was making the game really difficult really fast. The relaxing time would just disappear and it was all just stressful.
I think a good solution would be to have more enemies spawn in a group as the game progresses, so that the player still has time to relax and collect resources without being in defend mode the entire time.