To overcome problems in conventional prize contest which has a long application term, and requires auxiliary expenses on advertisement and the like for collecting applicants due to a long time until announcement of a winner, and in an event type method of collecting applicants in one place for improve immediacy and deciding a winner on the same day which has limitation of the number of applicants collectable at once, and these prize contests for promotion of a new product and the like cannot produce sufficient effect because information about the product can be distributed only several time, for example, in application and announcement of a winner.

In a method for this prize contest system, an applicant plays a game for deciding a winner on a network every time when his/her application is received, so that the result of the prize contest can be quickly informed to the applicant, and his/her aspiration for application can be increased. In playing the game, an advertisement can be informed for minutes during the game. Because all the actions are performed on the network such as the Internet, the applicant can be collected worldwide while immediacy is maintained.