Originating from the desire to explore concepts relating to social interaction in play mechanics, this thesis evolved into a computer game that is based on translating economic and social dilemmas into play mechanics. Specific empha- sis is put on the Prisoner Dilemma, an analysis that predicts the likelihood that individuals will cooperate or compete against each other in a given situation. Due to the separation from reality and the elimination of social norms in the environment of computer games, the Prisoner Dilemma manifests itself differently than it would in a real-life situation. The resulting prototype is a two-player competitive computer game. Players must collect orbs while running on a revolving sphere; at the same time, however, they must be sure not to lose the game by depleting a “sun” sphere that is affected by the speed of the competition. This gives them the choice between competing, cooperating, or alternating between the two.