Neat game! I enjoy making gears and plopping down swathes of turrets. And you weren't kidding about the mvp status of the tanks. I managed to survive till the end of the game thanks to just filling the field with those.
The art is pretty nice, the mechanics were fairly simple to get into. Although it was quite tragic when I got three "remove" cards and just had to sit tight for the wave.
Very nice job :D