Family Sharing enables family members to share games while keeping their accounts separate.
Steam Family Library Sharing allows family members and their guests to play one another's games while earning their own Steam achievements and saving their own game progress to the Steam Cloud. It works by granting family members' access to your games on a shared computer.
Step 1 - Log into your Steam account on the computer where you'd like to share your games
Step 2 - Make sure that you have Steam Guard security enabled via Steam > Settings > Account in the Steam Client.
Step 3 - From the Steam Settings panel select the Family tab (or in Big Picture mode, Settings > Family Library Sharing). Here you can select users who have also logged into this computer to share your library with.
Click the "Authorize this computer button"...
Check the box next the account you'd like to share your Library with.
Step 1 - Be sure to enable Steam Guard on your Steam Account.
Step 2 - From your Library you'll be able to see games owned by other Steam accounts that use the same computer. Select a game and click "Play" to see which account owns the game and to request access to their Library.
Step 3 - Requesting access will send the game owner an email with a link to allow you to play games in their Library.
Shared games may be unavailable if the account owner's Library is currently in use on another computer.
Your friend or family member's request to share will arrive as an email message. Click the link to authorize that computer and grant their Steam account access to your games.
As the owner, you may always access and play your games at any time. If you decide to start playing when another user is already playing one of your games, he/she will see a message giving them five minutes to either purchase or quit out of the game.
No, libraries are shared in their entirety. You aren't able to select specific games to share or exclude.
No, due to technical limitations, some Steam games may be unavailable for sharing.
For example, titles that require an additional third-party key, account, or a subscription in order to play cannot be shared between accounts.
DLC may not be shared if the borrower owns the base game, but doesn't own that specific DLC.
Free to play games and any purchased DLC for those games is also not supported for Family Sharing.
In addition, if your account has a VAC ban, you will be unable to share any VAC protected games.
No, games in a shared library may only be played by one user at a time.
Yes. You may authorize Family Library Sharing on up to 10 computers at a given time, and for up to 5 accounts that may then use your Library on any of those authorized computers. That's 5 accounts total in addition to yourself.
You can log into the Steam client and visit the "Family" tab in Settings, where you'll find a button to "Manage Other Computers..." Here you can deauthorize any computer or account that's been authorized to share your games.
Or you can remotely deauthorize computers from the web. Visit your Account Details online, and then select "Manage Family Library Sharing". Using either the client or the web site, you can view all currently authorized devices and accounts and disable any or all of them.
In these same settings, deselect any account from the list of authorized users to prohibit them from accessing your games.
A borrower will have access to the lender's games and DLC, but only if the borrower does not also own the base game. If a they already own the game, they'll need to purchase the DLC themselves in order to play it.
Any player may purchase, trade, earn, or otherwise acquire in-game content while playing a game, but in-game items cannot be shared between accounts. These items remain the property of the account that purchased or acquired them.
Trading cards will not be dropped while playing a shared game.
No, any region restrictions will remain in place when lending or borrowing games.
Your Family Sharing privileges may be revoked and your account may also be VAC banned if a borrower cheats or commits fraud. In addition, VAC protected games will not be shareable. We recommend you only authorize familiar Steam Accounts and familiar computers you know to be secure. And as always, never give your password to anyone.
If you have an issue with Family Sharing and wish to discuss it with the community, use the Family Sharing Community Discussion forum.
If you have have a new bug or issue that you wish to report, use the Family Sharing Bug Reports section of the Steam Discussion forums.
Should you continue to have issues, please contact Steam Support.