Google+ added games, including the hugely popular Angry Birds, to the fast-growing social network vying with Facebook to be the hub for people's online lives.
"We want to make playing games online just as fun, and just as meaningful, as playing in real life," Google senior vice president of engineering Vic Gundotra said in a blog post.
"When you're ready to play, the Games page is waiting."
Along with global game sensation Angry Birds, the initial array of offerings available at Google+ included Bejeweled Blitz, Zynga Poker, and Dragon Age Legends.
Google is a latecomer to social networking but its new site, Google+, has grown rapidly to more than 10 million members since its launch on June 28.
While Google+ may be the fastest-growing social network ever, it remains to be seen whether it can pose a serious threat to the social networking titan Facebook, which has more than 750 million members.
Google has a billion users worldwide that could be drawn into the California-based internet giant's social network.
Games are among the most popular activities at Facebook, where social game startup Zynga rose to stardom.
Most Google+ users - 6.4 million - are in the United States, followed by India, with 3.6 million, Canada, with 1.1 million, Britain, with 1.1 million, and Germany with over 920,000, according to online tracker comScore.
In unveiling Google+, Google stressed the ability it gives users to separate online friends and family into different "Circles," or networks, and to share information only with members of a particular circle.
One of the criticisms of Facebook is that updates are shared with all of one's friends unless a user has gone through a relatively complicated process to create separate Facebook Groups.