A game to exemplify the prisoner's dilemma in a philosophy class. Give each of N students the following on a slip of paper:
You have (N-1) points. You may give any number of points away to any number of other students by writing their names below; for every point you give to someone else, they get 2 points added to their total. All of the other students have the same conditions. After all point giving is tallied, you will get all points you chose not to give away, plus the points you were given (2 for every 1).

The number of points you get will effect your grade. Any attempts at communication will result in 0 points.

Name: ___________________________________________ # Points: ______
Name: ___________________________________________ # Points: ______
Name: ___________________________________________ # Points: ______

With individual rationality, everyone gets (N-1) points. With collective rationality, everyone gets 2(N-1) points.