The game got savaged upon release, but it is a very good squad-based command tactical shooter. It runs smoothly and is actually pretty fun, especially if you are into XCOM and can appreciate the story.

I got to spend some time playing this on Mac before it made it to the Mac Game Store, and it is loads of fun. Your little square gets to zip around and beat on, shoot, incinerate, and explode the opposition! There is a surprising amount of skill and strategy to get good at it - knowing what weapons to pick up and when to turn tail vs. fight - and you can easily sink more time than you realize into it. Well worth the price, and more the bargain when on sale!