NEW YORK (

TheStreet

) -

Activision Blizzard's

(ATVI) - Get Report

World of Warcraft: Cataclysm

has become the fastest-selling PC-game of all time, selling 3.3 million copies in its first 24 hours of release, the company announced Monday.

Cataclysm

, the third expansion of the popular massively multiplayer online role-playing game, beat the record previously set by the second

World of Warcraft

expansion

Wrath of the Lich King

, which sold 2.8 milion copies.

World of Warcraft

boasts more than 12 million subscribers who pay $14.99 per month.

Shares of Activision fell 0.69% in morning trading Monday to $12.16.

--Written by Olivia Oran in New York.

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