This book is on applications of game theory. It contains a lot of examples of applications of game theory together with the background of those games considered and a list of unsolved problems. Also we consider only the game where the optimal strategies of the players are found in closed form. For example, the following games are investigated: (a) games of protection of a channel from infiltration of a submarine, (b) the submarine versus helicopter game, (c) the matrix search games, (d) allocation search and economics games, where players face up an alternative either not to come into contest if the cost of efforts seems too high, or come into it, (e) dynamic infiltration games where the infiltrator tries to penetrate zone uncaught, (f) duels and (g) parlour games.