Awesome game, congrats.
One bug that I've found on the V1.18, sometimes when I remove the warp drive, and remove every block of the island the game does not allow me to put the drive back.
One question, why not put on Steam?
The enemy AI easily pass the top border if I get close enough, maybe put a little safety net so it won't destroy its own shield generators.
As soon as I get my salary, I'll support for the game. Awesome game.