This book deals with the usage of game theory in computer network applications. Chapter 1 explains the basic concept of game theory. Chapter 2 represents the various game strategies and its application through illustrations. Chapter 3 explains the concept of finitely and infinitely repeated games, by specifying the different game strategy with pay-offs factors. Chapter-4 specifies network applications in which how game theory is used in network applications and helps to evaluate the performance of computer network through the service offerings for various applications. Chapter 5 specifies the strategies to handle the perfect and imperfect information in network applications.