New Google Play services brings Google Plus-powered friends, leaderboards, achievements to Android, iOS and web - Polygon

Google today announced Google Play game services, a first-party suite of gaming-specific services that joins similar services on other platforms, like Apple's Game Center and 's GameCircle.

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Google Play game services announced for Android, iOS, web - Google Play Game Services - Giant Bomb

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New Google Play services brings Google Plus-powered friends, leaderboards, achievements to Android, iOS and web - Polygon

Google Play Game Services: Leaderboards

Google Play Game Services: Leaderboards

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Achievements & Leaderboard (Google Play Services) [Tutorial]

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