Platforms: iOS, Android
A game where you drive around in a car is not what you'd think about when you want a game to play when you're standing in queue wondering what's taking them so long. “Sling Drift” is a different kind of game though, it's a game where a car goes around an endless track and all you have to do is tap the screen and the car slings itself around turns and U-turns with varying levels of precision. Apparently, that's all it takes to hook a human mind and have them play the same game for the last three weeks.
The game gets more difficult as you progress as the speed of the car increases and the roads get narrower. You can collect coins and use them to buy different vehicles, an F1 car, a shiny sports car, and if you feel like it, even a tank! Give this game a download if you're looking to occupy your hands when you've got nothing to do, it does a hell of a job at that.