Has there been tweaking? Because I played this several times and it seems it changes everyday. (1st day was average difficulty, yesterday was easy - some farmers even learnt to carry a sword by themselves. Today seeing that the forest medals is working, I thought I'd try again, but its much harder now. On 3 tries I haven't managed to win yet. 1st try, I lost 50% of my tower on the 1st monster. It looks like more monsters attack the tower and seem to need a lot more arrows to be killed.)
I imagine that balancing the game isn't an easy task, and today its a bit too tough -imo. Still its a fun little time waster when we manage to live a bit longer.
Game generally ended when there was no more wood - Deforestation, a reflection of our story?