One aspect of the disclosure relates to altering a probability of fulfilling a game objective in a game space. The game objective may be associated with a set of potential reward items, the set of potential reward items including a first item. Probabilities of the first item from the set of potential reward items being provided to individual users as a reward for completing the game objective may be determined based on the rates of usage of the game space by the user. The probability of the first user being provided with the first item as a reward for completing the game objective may be determined based on the rate of usage of the game space by the first user.

A system, machine-readable storage medium storing at least one program, and a computer-implemented method for providing reciprocation of game asset gifts from a player is provided. A notification of a game asset of a first player that is available to a plurality of players is sent from a game server to the plurality of players. The notification is sent through a web feed in a game user interface of each player of the plurality of players. A first response requesting the game asset of the first player is received from a second web feed in a second game user interface of a second player in response to the notification. The game asset is provided to a second account of the second player in response to the first response.

A method of changing a virtual world of a computer-implemented game based on real-world locations of players of the computer-implemented game is disclosed. A presence of a player of the computer-implemented game is detected at a physical location. A presence of an additional player of the computer-implemented game is detected at the physical location based on a communication received from the player of the computer-implemented game. An aspect of the virtual world of the computer-implemented game is changed based on the detecting of the presence of the player at the physical location and the detecting of the presence of the additional player of the computer-implemented game at the physical location.

An approach to facilitate providing an event space associated with a primary virtual space is provided. An event space is provided to users of a primary virtual space, wherein the event space comprises one or more event objectives. Users of the primary virtual space having primary user accounts have associated event space accounts indicating event user parameters, event game parameters, and event inventory information for the first user. The user may be provided with event virtual items for purchase wherein the event virtual items are used in the event space during the event period. In response to a determination of the progress of the user associated with one or more event objectives an event award is determined for distribution to the user, wherein the event award may be used within the primary virtual space.

Methods, systems, and storage media for customization and reproduction of an avatar are disclosed. Exemplary implementations may: select at least one original asset comprising at least an avatar comprising a virtual representation of a user-controlled character; customize an appearance of the avatar to provide a customized avatar; and produce the customized avatar on a physical item through either a 2D or 3D process.

An item can be provided to a user by a lottery and the item odds can be changed in accordance with a prescribed condition. A control method, performed by a server device connected via a communication line to a terminal device operated by a user, can be initiated by selecting a lottery mode from among a plurality of lottery modes. Following the selection of the lottery mode, the system may hold a drawing from among a plurality of types of items on the basis of the selected lottery mode, and, following the holding of the drawing, may ensure that the won item is provided to the user via the terminal device.

The present disclosure provides a method of controlling a probability of a probability-based item provision system, which includes measuring an amount of use of an item provision system during a first time interval, comparing the measurement result with a first threshold, and changing the probability of the item provision system within a predetermined range during a second time interval after the first time interval, based on a result of the comparing.

Embodiments of the invention broadly contemplate a location based rewards distribution system. Various embodiments of the invention provide rewards, for example video game unlock codes, based on a user physically visiting a specific physical location.

One aspect of the disclosure relates to altering a probability of fulfilling a game objective in a game space. The game objective may be associated with a set of potential reward items, the set of potential reward items including a first item. Probabilities of the first item from the set of potential reward items being provided to individual users as a reward for completing the game objective may be determined based on the rates of usage of the game space by the user. The probability of the first user being provided with the first item as a reward for completing the game objective may be determined based on the rate of usage of the game space by the first user.

The game system comprises: a first selection unit that performs a first selection in which a game character is selected; a strengthening unit that raises the skill level of the game character on condition that the game character selected in the first selection is already possessed by the user; an effect-enabling unit that enables the game character to be changed in appearance on condition that the game character selected in the first selection is an appearance changing character; an effect applying unit that changes the appearance of the game character that is enabled to be changed in appearance; and a second selection unit that performs a second selection in which an appearance changing ticket applicable to any game character possessed by the user can be selected when the skill level of all types of the game character reaches an upper limit.