Galactic Civilizations 3: Crusade is an addition to the global strategy with turn-based battles Galactic Civilizations 3. The main theme of the addition is civilizations and their more detailed study. This way you will encounter resistance when capturing the planet, and will be forced to defend your possessions in the event of a hostile attack. Citizens can be trained in several areas, including espionage. You will also find a story campaign that will tell you about several alien races.
The add-on requires the original version of Galactic Civilizations 3.