StoneBack is a prehistoric survival game and it's out on iOS now, either free to play, or available to buy as a 'PRO' version - which I assume removes the ads.
A little like Terraria, StoneBack is a game all about living to see your next sunrise. It's doesn't help that the design of this game is so adorable it's distracting from the peril you're in, darn it. Just try hopping on the back of a tiny dinosaur – seriously, your heart will melt.
The major thing in this game is crafting. You can beat trees and rocks into collectible resources, kill animals for food, pick grass, and much more, but just remember to keep an eye on your health and food bars. You're no good to anyone if you're dead.
Check out the game on the App Store now and get it for your iPhone or iPad.