 Most of those who maintain that the PD illustrates something important about morality seem to believe that the basic structure of the game is reflected in situations that larger groups, perhaps entire societies, face. The most obvious generalization from the two-player to the many-player game would pay each player the reward (\(R\)) if all cooperate, the punishment (\(P\)) if all defect, and, if some cooperate and some defect, it would pay the cooperators the sucker payoff (\(S\)) and the defectors the temptation (\(T\)). But it is unlikely that we face many situations of this structure.