Xbox Live
When the Xbox launched on November 15, 2001, the as-yet unnamed online service was destined for a Summer 2002 deployment. Xbox Live was finally given a name at E3 2002 when the service was unveiled in its entirety. Sound-dampened booths and broadband-connected Xbox consoles—featuring an early version of "Unreal Championship"—demonstrated the service on the show floor. The Epic title was one of the flagship titles for the service, which was slated for a debut on November 15, 2002, marking the anniversary of the Xbox launch. Microsoft announced that 50 Xbox Live titles would be available by the end of 2003. Utilizing the required broadband bandwidth, Xbox Live featured a unified gaming "Friends List", as well as a single identity across all titles (regardless of the publisher), and standardized voice chat with a headset and communication, a feature that was still in its infancy.
List of Xbox games compatible with Xbox 360
During Microsoft's E3 2017 press conference on June 11, 2017, backward compatibility for original Xbox games on Xbox One family of consoles was announced. Part of the backward compatibility program for Xbox One will see original Xbox games be made available digitally in addition to owners of the original Xbox game disc. Prior to the first batch of original Xbox backward compatible titles for Xbox One were revealed six titles that were never released digitally as part of "Xbox Originals" program for Xbox 360 appeared in its "Games on Demand" store. Microsoft also confirmed that digital licenses would also carry over to Xbox One.