Every game exists within a frame: a specially demarcated time and space. The frame communicates to players, consciously or unconsciously, that a game is being played.
The magic circle of a game is the space within which a game takes place. Whereas more informal forms of play do not have a distinct boundary, the formalized nature of games makes the magic circle explicit.
Within the magic circle, the game's rules create a special set of meanings for the players of a game. These meanings guide the play of the game.
As a system, a game can be considered to have an open or closed relationship to its context. Considered as RULES, a game is closed. Considered as PLAY, a game is both open and closed. Considered as CULTURE, a game is open.
The lusory attitude is the state of mind required to enter into the play of a game. To play a game, a group of players accepts the limitations of the rules because of the pleasure a game can afford.