Code points to a new Android Gaming service on the way from Google
Play Service (formerly Google Mobile Services, so the acronym is still GMS) and include only the services needed. So, if an app needs Google+ integration, or Wallet integration, it will pull those files, pack them up, add them to the APK and send it off to the Play Store. Except, for some reason, the MyGlass app included all of the GMS files, rather than just the necessary ones.According to AP, when a Google app is released, it will pull from a pool of Google
This led to the inclusion of files for services that don't even exist, specifically a new Google Games platform for Android which looks like it will include real-time and turn-based multiplayer, invitations, in-game chat, lobbies, leaderboards, and achievements. The name isn't official, but based on the files found, the functionality is all there, and would just need the servers to work.
Obviously, there's no word on a release, but this seems like the perfect product to get the full announcement for developers at Google I/O, which isn't too far off. Maybe it's part of Android Key Lime Pie?
source: Android Police