GameStop isn't the only establishment offering Xbox One upgrades. Amazon has announced it too will allow users to upgrade from their Xbox 360 game to the same version on Xbox One, for a $10 fee.

Each eligible Xbox 360 game traded in to Amazon prior to December 31 will be valued at $25 and, as part of this promotion, Amazon will tack on another $25. That leaves you to make up the $10 in-between.

Amazon will support eight games over GameStop's five: Battlefield 4, Need for Speed: Rivals, Madden NFL 25, Call of Duty: Ghosts, FIFA 14, Watch Dogs, NBA 2K13 and Assassin's Creed 4: Black Flag. Just make sure you read the full terms and conditions before you start boxing up your games. okay?

This article was originally published on Joystiq.