Role-Playing Game Theory
There are many different role-playing game theories floating around, some with more empirical support than others.
Here is a short list of a number of RPG Theories, with associated links for more information.
The Hawkes-Robinson RPG Model ADVISORY NOTE: AS WITH EVERYTHING AT RPG RESEARCH, ALL INFORMATION IS PROPOSED BASED ON THE LATEST RESEARCH AND EVIDENCE-IN-PRACTICE INFORMATION. WE WELCOME DIFFERING VIEWPOINTS, PERSPECTIVES FROM MANY DISCIPLINES, ALTERNATE THEORIES, AND ESPECIALLY CONSTRUCTIVE CRITICISM AND FEEDBACK. AS WITH EVERYTHING AT RPG RESEARCH IT IS AN ITERATIVE BEST EFFORT APPROACH THAT GROWS THROUGH THE INVOLVEMENT OF MORE AND DIVERSE CONTRIBUTORS.
About the Hawkes-Robinson RPG Model
This model is by RPG Research's founder, W.A. Hawkes-Robinson aka "Hawke Robinson".
What Is A Role-Playing Game?
The Hawkes-Robinson Role-Playing Game Model: The 4 RPG Formats Details here: https://www.rpgresearch.com/rpg-formats-diagram-1