An information processing system encourages a player to continue a game even after the end of a special game state. An information processing system includes a storage device. The information processing system executes a normal game, a special game which is triggered based on a result of the normal game and which is more advantageous than the normal game, and an additional game which is executed after the special game and which includes plural stages. When the shift related to the stages occurs so that the progress of the game reaches the final stage of the stages in the additional game, the information processing system provides an additional reward. Meanwhile, when the progress of the game does not reach the final stage in the additional game, the information processing system stores the current state of the stages into the storage device. The additional game resumes from the stored state of the stages in the next execution.