The Book of Decisions [Download] The oracle for the rational person, science based and of exceptional predictive power. If you dare, a psychological game that penetrates subconscious depths to reveal your prospects of experiencing success and happiness. If you wish, a philosophical game that orients your perceptions of values and goals in relationships, job or business. In a lighter mood, an entertaining game of solitaire: Swap views with a 'superior' intelligence or challenge fate to a game of truth.