What Android / ios Game you are playing Now a days?

Hello,

I have learn unity,
and thinking to make a new simple game in android and ios.
But I have no idea what game should I made.

Now, I want to get idea from others games, I can mix two games, or maybe I can find any other idea from games.

Please name some games, that you find attractive but also simple games not Big games like subway-surfer or others..


And any suggestion to make game good business?

Thanks for any kind of advice....and
Sorry for my English