People from more crowded planets migrate to less crowded ones. Colony's desirability is determined by crowdedness (current population / population capacity) and planet traits (higher habitation maintenance lowers desirability). When population can migrate to multiple planets in a system then their distribution is proportional to destination desirability.
People from more crowded planets migrate to less crowded ones. Colony's desirability is determined by crowdedness (current population / population capacity) and planet traits (higher habitation maintenance lowers desirability). When population can migrate to multiple planets in a system then their distribution is proportional to destination desirability.