A term coined by Walt Freitag for play which merges two or more GNS modes. As he puts it: "A congruent decision is a decision made by a participant (GM or player) during play that cannot, on the basis of the visible behavior resulting from the decision, be categorized as belonging to a specific mode of decision-making enumerated by the underlying model. In the context of the GNS model there are exactly four possible congruencies, representing the four combinations of two or more modes for which a decision may be ambiguous." Others have disagreed over whether sustained congruent play is possible or even desirable.

References:

• GNS and "Congruency"