Patent ID: 8517822

Claim:
A game system configured from a terminal device for a game player to perform a versus game by operating a character in an in-game match-up area displayed on a screen by an image display unit, and a management unit communicably connected to the terminal device, wherein the management unit comprises: a player existence determination unit for determining whether the game player carrying the terminal device exists in a predetermined area of a real world corresponding to the in-game match-up area during a predetermined time span; a strength improvement information generation unit for generating strength improvement information which improves the strength of the game player when the versus game is to be performed in the in-game match-up area corresponding to the predetermined area when the player existence determination unit has determined that the game player exists in the predetermined area during the predetermined time span; and a distribution unit for distributing the strength improvement information generated by the strength improvement information generation unit to the terminal device of the game player or a communication device capable of transferring the strength improvement information to the terminal device; wherein the terminal device comprises: a strength improvement unit for improving the strength based on the strength improvement information when the game player is to play the versus game in the in-game match-up area; wherein the predetermined time span is a playing time span of a real-world game that is being performed; wherein the predetermined area is a real-world match-up area where the real-world game is being played; wherein the strength improvement information generation unit generates the strength improvement information which improves the strength of the game player when the versus game is to be performed in an in-game match-up area corresponding to the real-world match-up area when the player existence determination unit has determined that the game player exists in the real-world match-up area during the playing time span; wherein at least one of the terminal device and the communication device comprises: a position information acquisition unit for acquiring current position information; and an information sending unit for sending at least the current position information to the player existence determination unit of the management unit: wherein the management unit comprises: a storage unit for preliminarily storing time span information showing the playing time span and match-up area information showing the real-world match-up area; and wherein the player existence determination unit determines whether the game player exists in the real-world match-up area during the playing time span by comparing the information received from the information sending unit with the time span information and the match-up area information.