Zaroff tells Rainsford that the most dangerous kind of game is man. In this sense of the word "game" is a general term for any kind of animal that is hunted. Zaroff also considers hunting humans a game in the sense of something to be done for amusement and also a contest. Rainsford comes to accept the life-or-death contest with Zaroff as a game that two can play. The game is dangerous for both men because they are both trying to kill each other. Rainsford is game to Zaroff because he is a dangerous animal to be hunted and killed.