Mythic Entertainment and Electronic Arts has revealed that Warhammer Online: Age of Reckoning (WAR) has signed over half a million user accounts in its first week of release across North America, Europe and Oceania

Based on the renowned table-top game from Games Workshop, Age of Reckoning has already laid claim to the title of EA's most pre-ordered PC game. Now its first week performance makes it the fastest selling new Massively Multiplayer Online (MMO) of all time.

WAR is the latest MMO to try and take on the might of Blizzard's World of Warcraft, and so far looks to be equal to the test.

"In just one week we have a half a million people playing WAR online, and the ranks of Order and Destruction are growing at a record-breaking pace for a new MMORPG," said Mark Jacobs, co-founder and general manager of Mythic Entertainment. "We spent years working to provide players with the most stable, epic, and polished online world we could, but it is the players that have truly brought the Age of Reckoning to life."