GAME SYSTEM, GAME PROGRAM, GAME DEVICE, AND SERVER

PROBLEM TO BE SOLVED: To play a game using multiple pedometers, and also to improve interest in a game using the number of steps.SOLUTION: A game system 200 includes multiple pedometers 100. Multiple pieces of step data respectively measured by the multiple pedometers 100 are acquired by a game device 10. The game device 10 performs prescribed calculation by using multiple pieces of step data and a calculation result is reflected on a game. In the other case, a server 202 performs prescribed calculation by using multiple pieces of step data and a calculation result is reflected on a game in the game device 10. For example, game processing corresponding to the number of players walking in the same time period is performed, or game processing corresponding to the combined value of cumulative total step values of the multiple pedometers 100 is performed.