Sci-fi strategy after the apocalypse

In the year 2150, the earth fell, only a few thousand humans escaped it's demise and fled to mars, now the year is 2160 and the red planet has been colonized by the Eurasian Dynasty, the United Civilized States and the Lunar Corporation, each on their own, but one planet isn't big enough for all of them, and it's most definitely not big enough when there is something squirming under the red rocks...
Welcome to Earth 2160 the third in the excellent Earth series, full of the features that made it great and with additions that fans have been waiting for.

Note: Requires the latest DirectX version Download Earth 2160 the PC game