Game needs more details on tower and enemy types. For instance descriptions of what each tower does and what their "unique" upgradeable skills would be nice. Also, do particular tower types work better/worse against particular enemy types?
Shield is way to powerful of a spell. It is pretty much the only one that I use and makes it a little to easy. Should probably just shield you from a percentage of the damage.
Fun game but needs some work. Biggest thing would be a way to select your units on a toolbar or something, because trying to click one of your knights gets hard and knowing that you did click on the correct one is just about impossible. Would also be nice if there was a way to heal your units without having to upgrade them. I almost did not want to use my stars to upgrade my soldiers because that was one less heal I was able to give them by upgrading them durring the battle. With a few minor changes this could be a very fun game with great replay value!
@Orange33: You need to take both the Ukraine and Middle East on your first turn and then continue through India to Siam before finally finishing the AI off in Australia. If you do not take both on your first turn restart and keep trying until you do.
How come I can never get the medal for completing a level using only shoulder weapons? I have tried almost every weapon and tried them on different levels.