Abstract: An information processing system comprising a computer configured to execute: executing, on the basis of a determination request operation input by a player, determination processing for determining one of a plurality of kinds of game media belonging to one of selected types currently being conducted; storing, as a possessed game medium, the determined game medium in a storage unit in association with a player ID; executing a prescribed game by using the possessed game medium stored in the storage unit; allowing the execution of the determination processing, during a certain period that is set for each player, for the selected type conducted in the past.