googol-Choo-Choo 3D is distributed as shareware (US $21).
If you continue to use googol-Choo-Choo 3D, please pay the shareware fee.

Just one license will cover both Mac and Windows versions.

You can register using your credit card via the Kagi online web page. If you register googol-Choo-Choo 3D, we will send you an e-mail with a registration code that disables the shareware reminders.