Steam Families lets you share games with up to 5 accounts, but not simultaneously. Setting up a Steam Family is easy, requiring access to beta build and Steam Guard. Parents can now control specific ...
Setting up Steam Family Sharing is fairly simple ... and the account holder always has priority access to their games. Make sure you only share your library with trustworthy friends, though.
If you want to hide what game you are playing on Steam, then this post will show you how to stop sharing & disable Gameplay activity in your Steam account. All gaming enthusiasts playing games on ...