There are 20 main characters in this game. All the characters' attitudes are determined by their happiness. It is necessary to meet the characters' needs and demands so their work levels don't drop. Therefore, they need enough oxygen, power and food or entertaining with bars, clubs, saunas and over other 100 buildings available. Mental health is also an issue in a small colony in space, so meditation spaces, psychotherapy and even detention pods can be of use.
