Epic Games has revealed the lifetime sales for the Gears of War series -- the 19 million copies sold span three releases since November 2006. In its first week alone, Gears of War 3 sold 3 million, while Gears of War 2 garnered 2 million sales in its first weekend. Not bad.

This is the second Xbox-exclusive series to share its significant success in the past weeks. Microsoft recently detailed the record sales for its Halo franchise, which cracked the 46 million mark leading up to Halo 4's release.

Coincidentally, today marks the sixth anniversary for Gears of War.The first Gears of War prequel entry, called Gears of War: Judgment, will release for Xbox 360 on March 19, 2013.

Mitch Dyer is an Associate Editor at IGN. He loves Gears a lot. Read his ramblings on Twitter and follow him on IGN.

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