In situations where conceptual changes are needed, a worthy alternative to the training method is the Great Psychological Game (GPG). The book presents the author's approach to understanding the Great Psychological Game, its specifics, and structure. Methodological recommendations for organizing, conducting and creating this kind of games are given. Particular attention is paid to the description of one’s own practical experience in developing and conducting proprietary BPIs. The publication contains detailed scenarios (even indicating the musical compositions or videos that should be used in a particular game) of five proprietary games with various psychological and educational purposes and for various target audiences. There are games for working with teenagers and students, and for working with adults who want to understand themselves, as well as with top managers seeking to significantly advance their business experience. Recommendations and comments are given for each game based on personal experience. Good luck and pleasure in exploring the new world of the Great Psychological Game!