You won't have to wait too long to see how well Xbox Play Anywhere works in practice. Microsoft has confirmed to Polygon that the cross-purchase, cross-play feature will go live on both Xbox One consoles and Windows 10 PCs on September 13th. You'll still need games that support it, of course, but you can count on at least strong first-party support. Microsoft says that all the games it publishes from now onward will use Play Anywhere -- in theory, that means the next Halo will be a PC title. The real unknown is whether or not many third-party games will follow suit.