Last but certainly not least, for now, is Unkilled. Where New York City is the epicenter of a zombie outbreak that's taking over the city, and eventually the world. You must work tirelessly without fear to battle hoards of zombies
Unkilled is hands-down the best Zombie shooter for iPhone. In terms of overall enjoyment, and graphics. This game will push both you and your iPhone 7/8/X to the edge, and you'll love every minute of it. The developers worked extra hard on lifelike graphics, lighting effects, physics and more to make everything feel as real as possible.
Basically, you'll be scared as you unload an entire clip at a wave of incoming zombies. Bag and Tag tons of zombies in over 150 missions, work your way through five different classes or levels, and use a wide array of advanced weapons.
You'll also be able to join one of five special PvP maps for live multiplayer FPS shooter fun. This game has an amazing single player campaign, and an ever-growing and improving multiplayer mode if you want to keep playing.