GameMaker Studio 2 now supports Windows UWP export which means developers can easily publish to the Creators Collection section of the Microsoft Store on Xbox.

Creators Collection evokes memories of XBLIG on the 360. It's great that anyone can publish but eventually such storefronts devolve into chaos. 

Source: https://www.yoyogames.com/blog/447/ship-to-xbox-one-with-gamemaker-studio-2-uwp

Developers using Construct 2, Unity, Xenko and MonoGame can now integrate some Xbox Live features into their games without going through a rigorous approval program. 

Microsoft really wants their products everywhere. This includes Xbox Live. We might see Xbox Live exist on Androids and iPhones before long!

Learn more here: https://developer.microsoft.com/en-us/games/xbox/xboxlive/Creator