It comes as no surprise to anyone that “Halo 3″ would be the best-selling game for the month of September. We also know that the game sold $170 million dollars worth of product on its launch day, but how well did it do in the days that followed? Today we learn the answer to that question thanks to the sales figures released by NPD Group which calculate that a whopping 3.3 million copies of “Halo 3″ were sold in the game’s first twelve days of release. That’s correct, the 3.3 million figure is not even for two solid full weeks let alone a whole month. To give you an idea of how staggering that figure is consider that the number two best-selling game on NPD’s list is Nintendo’s Wii Play with Wii Remote which sold 282,000 units, or roughly 3 million less than “Halo 3″ did.

Microsoft was also able to translate the “Halo 3″ hype into moving more of its Xbox 360 game units off of store shelves. The console leapt to the top of the sales charts with 528,000 360s sold in September, well over the Wii (with 501,000) and the PlayStation 3 (119,000). However Nintendo posted its best month ever selling Wiis for September and usually the company is in first place for console sales, so enjoy your one month of being at the top of the heap, Master Chief.

via Gamespot