This is a quality game, well thought out and well executed. I appreciate it when devs put serious effort into the UI, not just the game itself.
Enough back story and instructions to be engaging without being too much to take in. Great tech tree: meaningful descriptions of new technologies with actual game stat improvements shown so player can make a meaningful choice and feel like they are in control.
Love the soundtrack (reminds me of "Behind the Wheel" by Depeche Mode). The controls are interesting, a bit weird for movement but excellent for shooting! A 'wishlist' item would be that the aliens blow up rather than fade away, but that's only a minor thing.
Great work!