A screenshot captured from a Google+ help page references a "Games Stream", Slashgear reports.
The since deleted line of text reads, "If you're looking for updates shared from games, check out your Games stream," with a link leading to a 404 page.
This is just the latest piece of evidence suggesting that Google is planning to introduce games to its new social network, which has attracted more than 10 million users since it launched last month.
A "Google+ games" logo was found buried in the service's code, along with a number of APIs referred to as "/_/games/getGameFriends", "/_/games/getActivities" and "/_/games/postToStream".
CNET also reported that Google's vice president of social Vic Gundotora said, "I'm a developer guy at the core... it is inconceivable I would build something without a platform."
Google invested $100 million in the leading social gaming company Zynga, and last month posted a job listing for a product manager to, "drive Google's gaming strategy."