When you’re ready to play, the Games page is waiting—click the games button at the top of your stream. You can see the latest game updates from your circles, browse the invites you’ve received and check out games that people you know have played recently. The Games page is also where your game accomplishments will appear. So you can comfortably share your latest high score—your circles will only see the updates when they’re interested in playing games too.

GoogleGames

(Thanks also to @laughingsquid  for sharing the post}