Any Idea what all this is worth?

I'm currently trying to get rid of this, but have no idea what it's worth, theres Xbox 360 DLC and full games on there. A BUTTLOAD OF THEM, also have an XB1 with forza 5, Dead Rising 3, FIFA 14, and Assassins Creed 4, along with a semi-crappy runescape account thats on there. So any estimates is greatly appreciated to get a general sense of value of the things offered.
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