Square-Enix has been smiling from ear to ear today, as they announced that Final Fantasy XIII is the fasting selling title in the entire franchise's history. With sales of the game reaching one million in the first five days in North America alone, combined with the huge amount sold in Europe, Final Fantasy XIII has "recorded the largest first-week sales in franchise history."

Of course, this is the first Final Fantasy title released on two platforms simultaneously, as well as the first on this generation of consoles, which has definitely contributed to the amount of copies sold.

With five million shipped so far, it's certainly looking good for Square-Enix. However, there is still a mountain to climb for Final Fantasy XIII to overtake Final Fantasy VII's 10 million sold, as the best selling in franchise history. The entire franchise has now sold an incredible 96 million units since the launch of the first Final Fantasy back in 1987.