Love the idea of building my own machine to siege in a classic TD style game. The building component was well executed, I really like the customization options for my attacking unit. With that being said it would have been cool to see how those parts altered my machine on the track, as in game it was hard to recall where the parts were in accordance with the base sprite to how it was effecting my run. Everything else is clean, some of the levels are incredibly unforgiving.
Well done.