@jeffcliff Depends on how you draw the line on "game" vs "not-a-game". In a zero-sum game, social interaction is subject to game theory (mainly, the prisoner's dilemma). But that's not all games. If all the humans are on one team in a player-versus-environment setting, social structures emerge *even if they're expressly forbidden by the game rules*. They're not just possible, they're necessary. They necessarily form.