Abstract: A server executes various controls for teams, each of which has at least one player, to have a matchup with each other, and manages each team, including change of a team during the game, record of each team, players and a number of players belonging to each team, and duration of a team. Further, the server determines, during the matchup game, whether a team item acquisition condition is satisfied based on the record of each player who belongs to the team and the like, and allows the team that satisfies the team item acquisition condition to acquire a team item which provides an advantageous effect in the game.

Abstract: A server executes various controls for teams, each of which has at least one player, to have a matchup with each other, and manages each team, including change of a team during the game, record of each team, players and a number of players belonging to each team, and duration of a team. Further, the server determines, during the matchup game, whether a team item acquisition condition is satisfied based on the record of each player who belongs to the team and the like, and allows the team that satisfies the team item acquisition condition to acquire a team item which provides an advantageous effect in the game.