You should be able to impose conditions when making peace with a civilization you are about to crush like:
- for the next years, they are not allowed to have a fleet bigger than
- pay a weekly ammount of money, influence, research points
- (if you are evil): if they have 2+ techs more than you in a category , they should hand over the last ones (eg. they have phasors 5 and you only have phasors 2, they are forced to give you phasors 3 for free)
