Well there are many games for you to find on the App Store however many of the better games cost money. Aside from that, some great games include:
Super Stickman Golf 3 (SSG3), a mobile golfing simulator.
Crossy Road, A endless arcade game about trying to cross the road
Love You to Bits, a point-and-click sci-fi adventure spanning all around the universe
INKS, a pinball based game
Hyperburner, a high speed spaceship flier
Uncharted:Fortune Hunter, a action puzzle adventure
Punch Club, a game based on you trying to train to avenge your brutally murdered father
~If you want to find out more about these games, just search them on the internet. Hope this helps!