| 摘要 |
PROBLEM TO BE SOLVED: To give flexibility to a mechanism for players to acquire a reward and enhance motivation of many players to acquire a reward.SOLUTION: A server device determines the first number of items by specifying a first object associated with the number of items defined in a game, and determines a change value by specifying a second object associated with a change value to change the first number of items. Based on the determined first number of items and the determined change value, the server device performs the change of the number of items to change the first number of items to the second number of items, and provides a reward on the basis of the second number of items. |
