Cooking mama 11.
Just dance 16.
But really, phone applications seem to be very successful when done right(duh). For example super cell created three famous apps called clash of clans, boom beach and hay day.
Their net worth is, are you ready
3 billion!
Now what's popular with phone applications? Well some games are just quick pick up and play, like flappy bird. Flappy bird was a game where you play as a bird tapping the screen to make him fly higher and avoid pipes. The creator of that game earned 50,000 a day from ads being displayed on the bottom of the screen. Their have been many remakes of flappy bird, and a bunch of quick play games made after, many being successful. Then there are games like clash of clans where you build a base and attack other bases. There have been so many remakes of this game I can't can't it with my toes and fingers : O. I would suggest making a game like clash of clans. Making people earn resources to upgrade their base and attack other bases. It's simple but profitable. Just find an era that you want the game to be in. There is already army type versions, cowboy versions. Maybe you can make a ninja version of it. But it would take a lot of time, while you can just make a quick play game that is addictive, and hope it catches on. I don't really have an idea for a game, I'm just showing you cool options that can work and give you $.