As if you needed more evidence that Google was planning a games service than the recent job listing -- and the fact that, as something you do on your computer, it falls into the category of things Google would want to own -- Engadget found a hint in some Google+ source code.

Unused code somewhere within Google's social networking service reads "... have sent you Game invites and more from Google+ Games," suggesting a Facebook-like functionality allowing users to play games socially through the service at some point in the future. It stands to reason that the Big G will probably wait until more people have Google+ and, perhaps more importantly, know how to use Google+. We know plenty of developers are relieved they didn't put too much effort into Google Buzz-based games.

This article was originally published on Joystiq.