It's Riv Civ with a few (small) twists. Firstly, the players start in the middle of the map instead of in a corner as per most riv civs. Secondly, the land is dotted with controllable sentinels to aid in area defense. Features a 3 minute day/night lighting cycle, and there's a bit of eye candy to boot. Has not been extensively tested and may contain horrendous errors. =P