Rapoport and Chammah's (1965) Prisoner's Dilemma (PD) game research and Vinacke's (1959) parchisi board game research revealed that players used various strategies to reach their desired outcomes. The researchers ascribed the strategy variations to gender differences. A study was conducted which replicated Vinacke's parchisi board game and Rapoport and Chammah's PD game to determine whether the gender differences reported in the literature still exist, and to examine their relationship to achievement motivation. Twenty-eight male and 24 female undergraduates participated in the PD game; 36 males and 36 females participated in the parchisi board game. Although the intensity of gender differences was not the same as that reported 25 years ago, the replication study revealed that gender differences in strategy choices still existed. Similar to the data reported in the past, females tended to choose a noncooperative strategy in the PD game, and a cooperative strategy in the parchisi game; whereas, male strategy choices were reversed. A theory of resultant achievement motivation as an explanation for the apparent reversal of game strategies within genders was not supported. It was concluded that, while gender differences were real, given the methodology used, they could not be explained through motivation. (NB)