Abstract: A game system that is a server or the like is configured to repetitively determine, during a match-up game, for each set determination period, participation continuation in the match-up game with respect to each player character according to a determination criterion which is based on acquisition of a specific item set in advance, and when it is determined that the player character does not satisfy the determination criterion at an end timing or before the end timing of the determination period, execute participation-limiting processing for limiting participation by the player character concerned in the match-up game such as loss management that involves causing the player character to suffer a loss from the match-up game in which the player character is participating.

Abstract: The server performs the ranking determination process for determining the ranking of each player based on the variable information stored in a given timing, the specific player specifying process specifying a player who satisfies a given condition for the determined ranking of each player as a specific player, and the information providing process for providing the player-related information of the specific player stored in a player information storage and identification information for identifying the specified player from other players, to the terminal device concerned, in association with each other.

Abstract: A server determines, for each player, whether or not a sanction as a sanction target player is to be imposed based on a state or an action of an operation target player character of the player concerned. When it is determined that the sanction is to be imposed, sanction control processing is executed that provides a terminal owned by a player who differs from the sanction target player with player-related information of the sanction target player as the sanction.

Abstract: When a server executes control processing related to a matching match-up using player characters as matched player characters between matched players determined by matching processing, when interference from a matched player character to another matched player character occurs, the server executes parameter control processing with respect to the matched player character having been subjected to the interference in accordance with the interference and executes parameter control disabling processing of disabling control of a parameter value in accordance with the interference by a player character of an unmatched player to the matched player character.

Abstract: A server sets a game field to a first game area and a second game area in accordance with a progress status of a game, executes display mode control processing of controlling display modes of a first player character who is present in the first game area and a second player character who is present in the second game area, generates image data which visualizes the inside of a virtual space as a game image, which includes a controlled display mode of each player character, and which is for providing a terminal with the game image, wherein in the display mode control processing, the server causes a terminal of a first player to display the second player character in a first display mode, and causes a terminal of a second player to display the first player character in a second display mode that differs from the first display mode.

Abstract: A game system that is a server or the like is configured to repetitively determine, during a match-up game, for each set determination period, participation continuation in the match-up game with respect to each player character according to a determination criterion which is based on acquisition of a specific item set in advance, and when it is determined that the player character does not satisfy the determination criterion at an end timing or before the end timing of the determination period, execute participation-limiting processing for limiting participation by the player character concerned in the match-up game such as loss management that involves causing the player character to suffer a loss from the match-up game in which the player character is participating.

Abstract: A server determines, for each player, whether or not a sanction as a sanction target player is to be imposed based on a state or an action of an operation target player character of the player concerned, and when it is determined that the sanction is to be imposed, executes sanction control processing of providing a terminal owned by a player who differs from the sanction target player with player-related information of the sanction target player as the sanction.

Abstract: When a server executes control processing related to a matching match-up using player characters as matched player characters between matched players determined by matching processing, when interference from a matched player character to another matched player character occurs, the server executes parameter control processing with respect to the matched player character having been subjected to the interference in accordance with the interference and executes parameter control disabling processing of disabling control of a parameter value in accordance with the interference by a player character of an unmatched player to the matched player character.

Abstract: A server sets a game field to a first game area and a second game area in accordance with a progress status of a game, executes display mode control processing of controlling display modes of a first player character who is present in the first game area and a second player character who is present in the second game area, generates image data which visualizes the inside of a virtual space as a game image, which includes a controlled display mode of each player character, and which is for providing a terminal with the game image, wherein in the display mode control processing, the server causes a terminal of a first player to display the second player character in a first display mode, and causes a terminal of a second player to display the first player character in a second display mode that differs from the first display mode.

Abstract: The server performs the ranking determination process for determining the ranking of each player based on the variable information stored in a given timing, the specific player specifying process specifying a player who satisfies a given condition for the determined ranking of each player as a specific player, and the information providing process for providing the player-related information of the specific player stored in a player information storage and identification information for identifying the specified player from other players, to the terminal device concerned, in association with each other.