One incredibly addictive gameplay experience has merged with another, as PopCap has released a Peggle add-on for Blizzard's World of Warcraft today, according to a post on the WoW Insider. This isn't PopCap's first WoW add-on; it previously released Bejeweled on World of Warcraft.

The Peggle add-on, which can be downloaded from PopCap, features a quick play mode with 12 stages based on WoW locations. There's also a duel mode that lets you play against another player, and a battle mode with custom leaderboards. You can also use Peggle to "roll" for loot by typing in /peggleloot. The player with the best shot wins.

Best of all, the add-on is completely free. Well, aside from the countless hours of lost productivity that you encounter upon playing Peggle.

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