In just 7 days Halo 5 has made over $400 million dollars in sales. That not only makes it the best selling Halo game ever, it is also the best selling Xbox One game to date. Halo was released on October 27th, 2015 exclusively on the Xbox One platform. It continues the story of Master Chief and his war to save humanity. Along with a full fledged story campaign, Halo 5 also includes one of the best Halo 5 multiplayer suites to date.