GAME SYSTEM, AND CONTROL METHOD AND COMPUTER PROGRAM USED FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a game system capable of adjusting a related information provision time related to a game element, and a use period of the game element.SOLUTION: A game system 1 provides a card game to each player. The game system 1 acquires information on a provision time (provision day) when related information related to a new character image MGs used in the card game is provided to each player, and based on the acquired information on the provision time, controls a use period of the new character image MGs.