Cool game. A lot of content for a few days work. Made it all to the end even when it took me a couple tries. I guess the first buildings are neccessary to build in a specific order to not get broke. But once I figured that order out it was kind of straight forward.
I see that there is still lot of space for improvements but I really like the start.
(Also I found a major bug: The sliders for the attack waves are enabled. So I could set my attacks to full every time I wanted and the enemies to the minimum so he would not attack :D )