Publisher KingsIsle Entertainment has announced that over one million unique users have registered for their free-to-play, tween-orientated MMORPG Wizard101 within five months of its launch in September 2008.

The company awarded the millionth registered player with a free one year subscription to the game along with an "interactive commemorative plaque" featuring their name in-world.

In addition, all current and future players are to receive 101 free "crowns"—the world's micro-transaction based currency—automatically in their account. Several items which cost less than 101 crowns have been added to the title, including a limited pet.

"The response has been absolutely overwhelming," says Elie Akilian, founder and CEO of KingsIsle. "We knew the game would appeal to families but we were surprised to see how well the game resonates with the hardcore set. The mechanics are a cross between a traditional Collectible Card Game and an old-school turn based Role Playing Game, and that makes us incredibly unique."