To make an account for Webkinz World, visit the Webkinz.com home page and click on Play Now. Adopt a pet, and fill out the registration information to complete your account, as of July 2015.
Select the pet you want to adopt by clicking on its picture. Enter a name for it, and select its gender. The site then requires you to select your country, because Webkinz World has timed activities that it makes available for users during the daytime in their time zones. Enter your name, and select your gender. You can also enter your birthday, but it's optional.
Enter a username and password. The application then asks for a parent's email address and for the parent to check a box that accepts the Webkinz World terms. If you are an adult, you can enter your own email address and check the box on your own. The next page is a confirmation page that lets you print your username and password.
If you buy a Webkinz plush pet, you can play with it on Webkinz World by entering the code that comes with it. Features available on Webkinz World include designing a room for your pet, playing games in the arcade and competing in tournaments against other players.