To provide a network growing game system etc. by which a player can sense growth of a character corresponding to a lapse of time and does not sense a sense of displaying incompatibility for the character grown by another player.

The visual range of a virtual space displayed on a display device is managed for every player participating in a network game. A plurality of parameters including growing days 505, muscular strength 506, endurance 507, and force of judgement 508 are set for growing character grown by respective players and managed by a server device. While the growing days 505 is updated at a predetermined time every day, the muscular strength 506, endurance 506, and force of judgement 508 are updated according to the content of growing carried out for the growing character by respective players. Information relating to the growing character included in the visual range of respective players is included in visual range information transmitted from the server device regardless of whether the growing character is grown by the player or by another player.