So, the ultimate goal is to fight off the Xyl invasion. So some questions here:
- When do they came? What determines when they come? Do that come around turn X, give or take Y number of turns each game? Or is their arrival based upon something you do or do not do?
- Will you have any warning that they are on the way? Will there be reported sightings? Raids/skirmishes somewhere along the outer worlds? Or do they pop up all at once, loaded for bear?
- How do you defeat the Xyl? Is it merely defeating them in X number of battles? Or hold a certain percentage of the galaxy or number of systems/planets for Y turns after the invasion? Or do you have to invade and conquer their worlds (are they even on the map somewhere?)