The World of Warcraft expansion pack Wrath of the Lich King has become the fastest-selling PC game in history after moving 2.8 million copies in 24 hours.

Gamers all over the world waited in long lines to buy Wrath of the Lich King, a new expansion pack for the popular computer game World of Warcraft. There are 11 million players worldwide on WoW, more than the combined populations of Costa Rica and Nicaragua.