Microsoft has renamed the "Xbox Live Marketplace" on Xbox.com to the "Xbox Games Store," putting the name in line with other marketplaces the company runs - like "Windows Phone Store." The Xbox Games Store is still located at marketplace.xbox.com (at least for now), and now groups titles by platform, with sections for Xbox One, Xbox 360, Mobile and Web games.
Microsoft removed the option to buy games for Windows via the Xbox Live Marketplace this month and announced that it would be shutting down its Games for Windows Live service next year. Many game developers have already announced that they are moving their games from the service to other services such as Steamworks to handle things like multiplayer and achievements.
This week also saw the end of Microsoft Points. The virtual currency associated with the Xbox brand since its start has been replaced with real world money associated with the region you happen to live in.
On a related note, the next free game coming to Xbox Live Gold subscribers in early September as part of its Games With Gold program will be Magic: the Gathering - Duels of the Planeswalkers 2013..