The article discusses different types of games and how players make decisions in them. It starts with games like chess where players have all the information, then moves on to games with infinite possibilities. The researchers show that some games have clear outcomes while others can be unpredictable. They also talk about games where players don't have all the information and how different strategies can lead to the same results. The article explains different ways to find the best strategies in games, like Nash equilibrium and sequential equilibrium. It also discusses how certain strategies can lead to stable outcomes in games.