Microsoft currently has a deal going for Memorial Day in the US, enabling those with an Xbox One or 360 to enjoy a free game when two or more titles are purchased. The offer is available through the Microsoft Stores and web store. Games include Battlefield 4, FIFA 14, Tomb Raider and more.
As always with deals such as these, availability varies by store and the free game has to be equal of lesser value than those purchased. Also, Microsoft is excluding first party games and the deal lasts until May 27th. Still, it's a neat deal for anyone who's looking to stock up on some gaming hours.