steamsteam-family-sharing
On my steam account, I have some games that I don't particularly want my sister to play, but I want to share my Terraria game with her so she can play with her friends.
Is it possible to only share Terraria with her through Family Sharing but no other games?
You are probably applying one of the many games list filters (ie: installed games) - choose the game library you wish to view from this menu at the top of the steam window (the same way you would filter to show only installed games) and this will present you the available games from that library:
(On a train at the moment so higher quality screenshot will be added later)
When this question was asked, Steam Family Sharing was in beta. However, as of March 3rd 2014, Steam Family Sharing is out of beta and available to everyone.
If you open that tab now, you should see a screen like this:
Best Answer
To an extent, yes and no.
As the Steam Family Sharing FAQ says,
That's the "no" part. However technically there is a way to enable only selected games for accounts you're sharing with. You can do this by using Family Options. Here's how.
First, login to the account you want to be used (the account you want the game[s] to be shared with) to unlock the library.
Secondly, then with that account logged in, activate the Family Options with a set PIN.
Then whenever you want to set a suitable game for that person, log yourself into their Steam client, unlock Family Mode with the PIN, and set the new game to " Family Games" and then lock the account again.