 Each agent must decide between pursuing their own little project, hunting a hare, or joining in a larger collective endeavor, hunting stag. The former gives a moderate but guaranteed income, no matter what others do. The collective endeavor, on the other hand, can only succeed if all contribute, in which case everybody receives a high profit. If, however, some do not join, all contributions are lost and no contributor receives anything. In the corresponding strategic form game, all players have to decide on what to do in parallel, without knowing the actions of others.