Playing serious games on an iPhone touchscreen can be crazy frustrating. Don’t throw your iPhone across the room — get a game controller like RiotPwr’s Rotor Riot RR1852. This mimics the design of Microsoft’s Xbox controller but with a Lightning cable and an iPhone mount.
I fully tested this updated version of the Rotor Riot Lightning-enabled game controller. And I like it a lot. And apparently so does Apple because you can find it in the Apple Store, both online and brick-and-mortar locations.