At today's Google I/O keynote, Google unveiled Google Play Game Services, which is designed to compete with Apple's Game Center. Like Game Center, Game Services features real-time multiplayer capabilities, leaderboards, cloud saves, and achievements.
The service is not limited to Android developers as Google has developed it to link gaming across Android, iOS, and the web. Google will be providing the SDK for Game Services to both iOS and web developers in addition to Android developers. As noted by Engadget, Game Services more closely resembles the now-defunct OpenFeint social gaming platform than Game Center.
Google's Game Services comes several years after the introduction of Apple's Game Center. Game Center was originally introduced in 2010 and underwent a major overhaul in late 2011.
Source: Mac Rumours