In what could be the biggest power move of the entire current-gen console war, Microsoft has shocked the world by announcing backwards compatibility for the Xbox One.

Micrisoft has announced a major shocker in the beginning of its E3 2015 presentation: they're adding backwards compatibility to the Xbox One. You read that right — backwards compatibility for the Xbox One. The Xbox One will be able to play Xbox 360 games, whether they're the physical discs that you've accumulated over the years or games that you've digitally downloaded to your 360's hard drive via your Xbox Live account, you'll get to play them all on your Xbox One. Microsoft representatives revealed that this will let you play the last-gen games on your current-gen system without any additional purchases.

Please note, this includes all those Xbox 360 Games for Gold you've downloaded throughout the past couple years. If you've downloaded a game for the Xbox 360, you'll likely be able to download it over to the Xbox One and play it there. Xbox will let your current-gen system read 360 discs and play them. This means you don't have to pay to play the games you already own.

Playing 360 games on the Xbox One will let you take screenshots, record videos and earn achievements. Xbox One backwards compatibility will launch sometime by the end of 2015.

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