The game looked quite nice and the voice acting and music worked perfectly on this. Only problem was that I had no idea what to do pretty much. In the end I couldn't do anything anymore, since the guards were standing idle and there was million of guard spots that I couldn't delete :D
I'd recommend adding a small tutorial to a game like this, so everyone knows what to do. It has a lot of potential, I bet game like that ain't easy to do, so don't stop but polish it a bit and add a small tutorial in the beginning, or then just introduce the buildings/etc. one by one and that way teach the player how to use them.