Really enjoyed it
Top notch graphics and voice acting.
As others have stated, there needs to be more upgrades for buildings. For the mining especially. I hit next wave asap and it seemed like the the mining sped up a bit but was hard to tell.
I didn't even use the troops or air strikes. Just maxed out a variety of the top tower weapons for each level. It got a little boring after 7 levels or so.
Thanks for the game, you have some talent for sure.