Tragedy of the Commons (ToC) is a Psim game about cooperation, competition and management of shared resources. The game challenges players to be “successful fishers”. They do this by buying boats and going “fishing” in each round. There are a finite number of fishing spots around the room, and (as it turns out) a limited amount of fish. Players must figure out how to manage the shared resource and define what it means to be successful. This game is based on a well-known economic problem (see for example https://en.wikipedia.org/wiki/Tragedy_of_the_commons and https://www.econlib.org/library/Enc/TragedyoftheCommons.html).