I was going through this list of games here:
Having already played FreeCiv and TripleA, I started on down the list and must say that aside from the first two (they are good as well), your game stands out as simple, fun and intuitive. The big thing compared to most of those games: it is very, very intuitive and easy to learn. I just figured, if you ever decide to add more complexity, you ought to make said complexity optional, sort of like Carcassonne vs Carcassonne with all the expansions (which is a lot to take in for beginners).
Keep up the good work. This is a really nice game (aside from the AI being awfully quirky).... very elegant.