Actually, Ray Valdes, an analyst with Gartner, said Google+ needs that action.

"Google is adding games, not in order to compete with Facebook, but rather to address an important aspect of the social experience on the modern Web," he said. "People go to Facebook and similar sites to connect with friends, and, as part of that, to engage in social play ... Casual social games, such as Farmville, are not for everyone's taste, but are important to a significant portion of the user population."

Valdes noted that one-fourth of Facebook's enormous user base plays a social game on the site. That is why Google+ needs to get into the gaming world - to find at least parity with Facebook, said Dan Olds, an analyst with The Gabriel Consulting Group.

"Google needs to harness this 'fun factor' and add games and other diversions if they want to make a serious play for Facebook users," said Olds. "A compelling and highly entertaining game can turn a non-gamer into a casual gamer and a casual gamer into committed fan ... It keeps user eyes focused on the social networking site, which is the object."

Facebook, however, isn't sitting back and letting Google+ grab all of the gaming limelight.