Sal's G-ScalE research focused on analysis of game design principles.

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Game Design Principles: A formal analysis

Game design principles have been discussed and developed since the late 1990’s and are still created and discussed today. There have been many efforts to collect, identify, and create these principles, yet no effort has been made to test their implementation. This thesis presents an approach to formally analyzing games with game design principles. We gathered 50 game design principles...