Contributions to public goods To understand how the game runs, it will help to work through the details in the following table. Number of cooperators Amount returned to players Payoff per player 0 1 2 3 4 You should be able to see that when more of the players contribute, all players get higher payoffs, and the highest payoffs are obtained when everyone contributes. (If this is not clear to you, review the rules of the game and go back over your calculations.)