The mechanics of cutting down trees and building turrets can be fun, but the main problem is a lack of feedback. There's no audio or visual cue for when you hit a tree or when a turret has shot a monster, and if it wasn't for the materials number going down, I wouldn't be able to tell if I was placing a turret when I hit E or R. I was also a bit surprised to see the game end after one night. Good idea here, but work on the presentation a bit more next time.