Abstract: A server device according to the present invention, which is connected to a plurality of player terminals through a network, includes a storage unit configured to store an initial upper limit of number of groups and an initial threshold value smaller than an upper limit of a group affiliation rate, which is a ratio of number of affiliated persons with respect to a quota of a group, a group generating portion configured to generate a plurality of groups to which the group affiliation rate of the initial threshold value is set, at a start of a game, based on the initial upper limit of the number of groups, and a player distributing portion configured to distribute players to groups.

Abstract: A server device stores a plurality of first messages and a plurality of second messages to be made available to a player as a result of a use condition being satisfied. The server device generates, if the use condition is not satisfied, a first message list including only the first fixed messages and generates, if the use condition is satisfied, a second message list including at least one of the second fixed messages. In response to a request from a player terminal, the server device generates, before the use condition is satisfied, data of a game screen including a selection operation area allowing a player to select a message from the first message list and generates, after the use condition is satisfied, data of a game screen including a selection operation area allowing a player to select a message from the second message list.

Abstract: A server device according to the present invention, which is connected to a plurality of player terminals through a network, includes a storage unit configured to store an initial upper limit of number of groups and an initial threshold value smaller than an upper limit of a group affiliation rate, which is a ratio of number of affiliated persons with respect to a quota of a group, a group generating portion configured to generate a plurality of groups to which the group affiliation rate of the initial threshold value is set, at a start of a game, based on the initial upper limit of the number of groups, and a player distributing portion configured to distribute players to groups.

Abstract: A server device stores a plurality of first messages and a plurality of second messages to be made available to a player as a result of a use condition being satisfied. The server device generates, if the use condition is not satisfied, a first message list including only the first fixed messages and generates, if the use condition is satisfied, a second message list including at least one of the second fixed messages. In response to a request from a player terminal, the server device generates, before the use condition is satisfied, data of a game screen including a selection operation area allowing a player to select a message from the first message list and generates, after the use condition is satisfied, data of a game screen including a selection operation area allowing a player to select a message from the second message list.

Abstract: An information processing device according to the present invention includes: a storage unit configured to store possessed character information that is information related to characters possessed by a player and a game parameter indicating an accumulation state of points possessed by the player in association with the player; a character selection unit configured to select a main character and a sub character from among the characters possessed by the player; a point accumulation unit configured to accumulate points by updating the possessed character information so that the sub character selected by the character selection unit is made into a character not possessed by the player and by adding the number of points corresponding to the sub character to the game parameter; and a parameter varying unit configured to vary a parameter set to the main character by causing the points accumulated by the point accumulation unit to be consumed.