“Irvine, Calif. – March 17, 2005 – Blizzard Entertainment® today announced that World of Warcraft®, its massively multiplayer online role-playing game (MMORPG), has surpassed the 1.5 million subscriber mark*, underscoring the game’s continued success around the world. Building on its record-breaking debuts in North America, Korea, and Europe, World of Warcraft has reached global peak concurrency – the number of subscribers playing at the same time in each market – of more than 500,000 players.”
Wow.. no pun intended. Check the PR at the Blizzard site.