The Zynga effect can refer to the effect of making a player an addict of a game. This is achieved by applying game theory, that is, using calculated methods of structuring the activities and rewards to induce feelings of satisfaction and urgency in the player.
Employers and educators alike have taken notice of the success of games like Farmville and Mafia Wars, and are searching for ways to incorporate the Zynga effect to improve motivation and morale.