The 'Metal Gear' franchise has sold almost 60million copies worldwide
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The Metal Gear series has sold 60.2 million copies
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The Metal Gear series has sold 60 million copies
Metal Gear Solid V: Ground Zeroes, Metal Gear Wiki
The Metal Gear Series Has Sold Over 60 Million Copies Worldwide
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Metal Gear Game Series Sales Reach 60 Million Copies - Siliconera