Abstract: A game service platform server for providing a game service platform includes: a game association module to allow a first user device of a first user to access each of a plurality of games provided by the game service platform server; and a friend management module to: receive a service request from the first user device to access a game, associated with account information of a social network service (SNS) subscribed by the first user; inquire an acquaintance list of the first user to determine whether SNS acquaintances of the first user have joined the game; register, automatically, an SNS acquaintance as a game friend of the first user in response to a determination that the SNS acquaintance has joined the game; and transmit, to the first user device, game group information including results of the determination for each of the SNS acquaintances of the user.

Abstract: A game service platform server for providing a game service platform includes: a game association module to allow a first user device of a first user to access each of a plurality of games provided by the game service platform server; and a friend management module to: receive a service request from the first user device to access a game, associated with account information of a social network service (SNS) subscribed by the first user; inquire an acquaintance list of the first user to determine whether SNS acquaintances of the first user have joined the game; register, automatically, an SNS acquaintance as a game friend of the first user in response to a determination that the SNS acquaintance has joined the game; and transmit, to the first user device, game group information including results of the determination for each of the SNS acquaintances of the user.

Abstract: A ranking method and system for providing a ranking of a game friend. The method includes registering a game friend who has joined a game service. The method further includes calculating a ranking of the user with respect to a game friend based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides some information needed for automatic friend registration and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game friend. The method includes registering a game friend who has joined a game service. The method further includes calculating a ranking of the user with respect to a game friend based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides some information needed for automatic friend registration and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game friend. The method includes registering a game friend who has joined a game service. The method further includes calculating a ranking of the user with respect to a game friend based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides some information needed for automatic friend registration and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game group is disclosed. The method includes creating a game group including a user and at least one member among the user's registered friends who have joined a game service, based on a game group creation request received from a user terminal. The method further comprises calculating a ranking of the user with respect to other members of the created game group based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides the game group creation request information and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game friend. The method includes registering a game friend who has joined a game service. The method further includes calculating a ranking of the user with respect to a game friend based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides some information needed for automatic friend registration and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game friend. The method includes registering a game friend who has joined a game service. The method further includes calculating a ranking of the user with respect to a game friend based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides some information needed for automatic friend registration and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game group is disclosed. The method includes creating a game group including a user and at least one member among the user's registered friends who have joined a game service, based on a game group creation request received from a user terminal. The method further comprises calculating a ranking of the user with respect to other members of the created game group based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides the game group creation request information and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game friend. The method includes registering a game friend who has joined a game service. The method further includes calculating a ranking of the user with respect to a game friend based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides some information needed for automatic friend registration and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game group is disclosed. The method includes creating a game group including a user and at least one member among the user's registered friends who have joined a game service, based on a game group creation request received from a user terminal. The method further comprises calculating a ranking of the user with respect to other members of the created game group based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides the game group creation request information and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game group is disclosed. The method includes creating a game group including a user and at least one member among the user's registered friends who have joined a game service, based on a game group creation request received from a user terminal. The method further comprises calculating a ranking of the user with respect to other members of the created game group based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides the game group creation request information and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game group is disclosed. The method includes creating a game group including a user and at least one member among the user's registered friends who have joined a game service, based on a game group creation request received from a user terminal. The method further comprises calculating a ranking of the user with respect to other members of the created game group based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides the game group creation request information and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game group is disclosed. The method includes creating a game group including a user and at least one member among the user's registered friends who have joined a game service, based on a game group creation request received from a user terminal. The method further comprises calculating a ranking of the user with respect to other members of the created game group based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides the game group creation request information and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game group is disclosed. The method includes creating a game group including a user and at least one member among the user's registered friends who have joined a game service, based on a game group creation request received from a user terminal. The method further comprises calculating a ranking of the user with respect to other members of the created game group based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides the game group creation request information and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game group is disclosed. The method includes creating a game group including a user and at least one member among the user's registered friends who have joined a game service, based on a game group creation request received from a user terminal. The method further comprises calculating a ranking of the user with respect to other members of the created game group based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides the game group creation request information and the ranking inquiry request information through the game service platform.

Abstract: A ranking method and system for providing a ranking of a game group is disclosed. The method includes creating a game group including a user and at least one member among the user's registered friends who have joined a game service, based on a game group creation request received from a user terminal. The method further comprises calculating a ranking of the user with respect to other members of the created game group based on a ranking inquiry request received from the user terminal, and providing the user terminal with the calculated ranking of the user. The user terminal drives a game service platform associated with a plurality of games and provides the game group creation request information and the ranking inquiry request information through the game service platform.