I do like the game mate its a good design I like the art work with the shadow good job, only thing I can add is its a tad to easy... All i do is set a machine gun down add a +range and +dmg and just upgrade the machine gun and I win, might want to add to the difficulty or tone down the machine gun
 "Frontline Defense Beta 2"){kind=icon}
 "Brute Wars"){kind=icon}