That game is a lot of fun, especially getting to totally design your own units. I feel like the game doesn't quite have the depth you get with SMAC/x so far as gameplay elements. Though the AI seemed challenging to me at first I eventually found that at higher difficulties all it does it just build more, it doesn't really attack much or strategize and it seems kind of stupid from time to time (sending huge war fleets that get distracted and turn around 1 turn away from devastating my worlds even when there's only the two of us and things of that nature).