A term coined by Walt Freitag for an instance of play which is not prioritizing any of the three Creative Agenda possibilities in GNS. It is role-playing without doing anything that is unexpected by the other participants. As he defines it, zilchplay has an an agenda: "being told a story while engaging in manipluation of some arcana that makes it appear and feel that you're doing something of greater import than that."

References:

• Understanding: the "it" of Simulationism
• zplay - liberating Sim and embarrassing Exploration!