About Serial Number Issuing

About products that require a serial number (product ID)

When you purchase products that require a serial number, the "serial number (product ID)" will be issued and displayed on the product download page.
When executing such products, make sure you are connected to the Internet and perform the authentication by entering the serial number.

Please note that the following limitations exist.

  • Products that require a serial number (product ID) have a limit on the number of times they can be installed.
    If you reach the maximum limit, please [ Contact Us ] for assistance.
  • If the limit has been reached as the result of unauthorized distribution to third persons, we shall decline your request for a reissue.
  • An active Internet connection is required at the time of authentication.
  • If you reinstall your operating system, then authentication will be required again.

For Members

If you wish to reissue a serial number (product ID), click the download button in the [ Download History ] menu in [ My Page ].

Troubleshooting

If the game does not start or the game screen closes immediately, please refer to our [ Help ].

Circle's Guide