Commentary on Games Design … The magic ingredient is “people” – As soon as there are other players involved in the game you are playing (outside of a single player game) social interaction becomes both inescapable and potent. Raph Koster's book “a theory of fun”, has superb information here. Some of the key social forms that can be displayed in a game are: Schadenfreude, “Hah! I won and you lost, this means you are inferior to me.” A drunken, gloating feeling