The game is a full 3D space strategy game, where you can oversee every aspect of your empire: from the mining through the development and production. You are also controlling your army- and in these times, this task is quite hard. The main emphasis is placed on the battles, not on the micromanagement though, which means that the graphical details will blow any competition away.
The story begins in the not-too-distant future, where Earth and the Colonies (which is represented by the strongest independent one, Mars) are in a serious conflict. In the beginning of the game, you can choose any side- either Earth or Mars- but the real challenge- that of conquering space 'outside' the borders of the solar system- can only begin once Humanity is united again.
Similarly to Imperium Galactica I, you slowly advance in ranks and most options are not available until you prove yourself in the early missions. Advancing in the rank system will result not only in the control of larger and larger fleets, but also handling some new aspects of the empire you have not controlled before.
Naturally the first Encounter happens- and the story takes on a new turn, where you face an ancient conflict between two alien races- and your task to unravel the truth is not as easy as it first seems...