Playfire is described as 'is the global community for gamers. Get a killer profile, track news & discussion for your favorite games, and follow your friends progress in games' and is an app in the Social & Communications category. There are more than 10 alternatives to Playfire for a variety of platforms, including Online / Web-based, Windows, Mac, Linux and iPhone. The best alternative is Moonlight, which is both free and Open Source. Other great apps like Playfire are GameTracker (Freemium), Backloggery (Free), GameRanger (Freemium) and Google Play Games (Free).
Moonlight allows you to stream your collection of games from your GameStream-compatible PC to any supported device and play them remotely. Moonlight is perfect for gameplay on the go without sacrificing the graphics quality of your gaming computer.
GameRanger is a free download for Mac and PC that lets you play over 600 games and demos online with friends and opponents worldwide. GameRanger offers features like profiles, friends lists, instant messaging, in-game voice communication, and competitive ladders/rankings/ratings.
Games get more fun with the Google Play Games app. Compete with friends, track your achievements and pick up wherever you left off, on any of your devices. As you master more games across Google Play, show off your skills in your all-new Game Profile.