| 摘要 |
The present invention relates to a technology for providing a coupon which can be used in using an on-line game. The present invention provides a method, server, and system for providing a coupon for an on-line game which can save resources used in manufacturing and distributing a coupon by replacing a printed coupon distributed off-line and also can cause interest to a game for not only existing users of the on-line game but also users who learn the on-line game first. |
