Blizzard Entertainment has announced that World of Warcraft: Cataclysm has sold over 4.7 million copies during its first month of release. Just like the first day sales of 3.3 million copies, this represents a record for PC sales.

“We created thousands of new quests, introduced new lands to explore, and extensively revamped the game world for World of Warcraft: Cataclysm, making it our biggest and most ambitious expansion yet,” said Mike Morhaime, CEO and co-founder of Blizzard Entertainment. “We’ve been floored by the community’s response so far, and we’d like to thank them for their continued passion and support for World of Warcraft, and for helping Cataclysm reach this incredible milestone.”