How to let your kids play their Xbox games with friends on other platforms

[Windows Central]

If your kids want to cross-play with friends outside of Xbox Live, you'll need to enable it first.
If you have a family group set up with your Microsoft Account and for Xbox, then you'll already know about some of the great features for controlling what your kids have access to. But one thing they may want to use is actually hidden behind a setting you might not know exists.
Crossplay.

Full story from the WindowsCentral blog...