Ok but short

I was just warming up, when the game told me "You Win".
So maybe a longer game?
And harder?
Maybe you shouldn`t be able to put towers everywhere(even on top of other towers?

its ok

it is ok i gest
could us more thought and you need to display how much the towers cost

not bad

but the gameplay isnt well balanced. when you can only buy two towers at the start it matters where they are placed, but you dont know where the enemies will come from