Abstract: A method that for increasing the number of users making a registration to a game service by providing a motivation to a registered user, a game player of the game service, to invite more users to a game. When a user registered to the game service invites a friend to a game, a benefit assignment screen may be displayed on an invitation screen. Corresponding benefits may be determined based on information such as a preference and a skillfulness of the friend about a second game, or personal information of the friend, such as age or sex. In addition, the benefits may be assigned only during a predetermined period of time and accordingly, the registered user may be motivated to invite the friend.

Abstract: A method that for increasing the number of users making a registration to a game service by providing a motivation to a registered user, a game player of the game service, to invite more users to a game. When a user registered to the game service invites a friend to a game, a benefit assignment screen may be displayed on an invitation screen. Corresponding benefits may be determined based on information such as a preference and a skillfulness of the friend about a second game, or personal information of the friend, such as age or sex. In addition, the benefits may be assigned only during a predetermined period of time and accordingly, the registered user may be motivated to invite the friend.