#5 Angry Birds

Angry Birds scored 2 million downloads after it was released for Android in just a week, and many avid gamers out there are still considering it one of the best games ever made for a smartphone or tablet. Unlike the iOS version, the Android version of the game is free of charge. The tough physics puzzler has managed to convince players that it’s polished and extremely precise, so if you haven’t played it yet, it might be a good time to give it a try.