Microsoft Game Studios today announced that Fable had an incredible launch month. After selling more than 375,000 units in North America just during the first week, Fable sold more than 600,000 units in its first month at retail in the U.S., according to the NPD Group. The game is available in North America for an estimated retail price of $49.99. Don't forget we already have a review of the game here. Read it!