Sales for Assassin's Creed were said by the publisher to have "greatly outstripped" their expectations. In the United Kingdom, Assassin's Creed debuted at number one, knocking Infinity Ward's Call of Duty 4: Modern Warfare from the top; the majority of the debut sales were on the Xbox 360, which claimed 67% of the game's total sales. The Xbox 360 and PlayStation 3 releases of Assassin's Creed each received a platinum sales award from the Entertainment and Leisure Software Publishers Association, indicating sales of at least 300,000 copies per version in the United Kingdom. On April 16, 2009, Ubisoft revealed that the game had sold 8 million copies.
