Assassin's Creed releases in North America

PS3 / Xbox 360

Ubisoft's tale of Altaïr and the Assassin-Templar conflict introduced parkour-driven historical open worlds that would spawn a decades-long franchise.

World of Warcraft: Wrath of the Lich King releases

PC

The expansion's midnight launches sold over 2.8 million copies in 24 hours, sending players to Northrend to face Arthas himself.