Do I need to be online to play a shared game? You may authorize Family Library Sharing on up to 10 devices at a given time, and for up to 5 accounts that may then use your game library on any of your authorized computers. Is there a limit to the number of devices or friends I can authorize to share my Library?
Then enable the sharing feature via Settings > Family, (or in Big Picture mode, Settings > Family Library Sharing,) where you'll also authorize specific computers and users to share. To enable Family Library Sharing, first be sure you have Steam Guard security enabled via Steam > Settings > Account in the Steam Client.
Frequently Asked Questions How do I enable Family Library Sharing on my computer?
