Not bad
Not bad, solid game play, but needs some more work. First, there is no back story at all, which makes the game less interesting. Secondly, there is very little in way of tactics or strategy that I could work out, I can only tell everything to attack or fall back. It would also be nice if I could place my buildings, and maybe more freedom to have more crystal mines if I wanted...
Other than that, there is no controls menu. I missed how to change weapons for my boss, and despite trying numerous keys haven't worked it out. This means that I am stuck with this one weapon, because there is nowhere to find instructions apart from when ypu start a whole new campaign.
But the graphics are nice, and the overall feel is good. With some more work this could become a keeper!