Languishing amid market gloom and slumping stocks, Japanese brokerages are targeting teenagers -- through a stock market game -- in their uphill battle to encourage individuals to invest.

The Japan Securities Dealers Association, an industry body, and the Tokyo Stock Exchange Inc. jointly developed the online stock investment game for students that has been used in high schools in recent years.

Educators say it encourages students to take a greater interest in society. But convincing Japanese to actually play the bourse is no easy job.