What are the other three "game dynamics"? Seth Priebatsch recently gave a tedtalk entitled Building the game layer on top of the world. In it, Seth described four game dynamics, techniques used by game designers to make games fun and addictive. The four dynamics that Priebtsch described were Appointment dynamic a dynamic in which to succeed, one must return at a predefined time to take a predetermined action. (Real life example happy hour) Influence and status the ability of one player to modify the behavior of another's actions through social pressure. (Example different color credit cards as a reflection of status) Progression dynamic a dynamic in which success is granularly displayed and measured through the process of completing itemized tasks. (Example linkedin profile progress bar) Communal discovery a dynamic wherein an entire community is rallied to work together to solve a challenge. (Example finding interesting content on Digg.com) Seth explained these four game dynamics in his talk and added that his company has an additional three. Does anyone know (or have any theories) about what the other three game dynamics are?