Add Hello Kitty and the cast of Sanrio characters to the virtual world and massively multiplayer online role-playing (MMORPG) game phenomenon.

Sanrio Digital and Typhoon Games announced the birth of Hello Kitty Online this week, which since Wednesday has attracted 30,000 people interested in testing the site.

As in other virtual worlds, users create avatars and can go about the cartoon world slaying monsters — though we always thought Hello Kitty was such a nice, peaceful character, albeit with no mouth — as well as building a home, raising pets and tending a farm.

Besides Hello Kitty, the world also features My Melody, Badtz-Maru, Keroppi, Pochacco and others.