This work focuses on identifying player personality types within a game context as a way of personalising gameplay or storytelling based on the formulated personality.

This was achieved by adapting the psychological types established within Carl G. Jung’s work ‘Psychological Types’ (Jung, 1971), and the Myers-Briggs Type Indicator developed within ‘Gifts Differing: Understanding Personality Types’ (Briggs, Myers, 1980), to develop a system that can define a character’s personality as they are played. 
The system acts as an API, thus a digital playground, taking the form of a Role-Playing-Game, was constructed to illustrate its functionality.

As the user makes conscious and unconscious decisions, each decision adds towards a particular psychological type, which in turn formulates a specific personality. Through various play tests, results indicated that the personality type formulated at the end of the user’s interaction matched what was expected. Based on these findings it would suggest that it is indeed capable of identifying player personas and thus it can potentially be used as a tool to curate game design.