In Beginning iOS 7 Development
, I included a new chapter on making games with Sprite Kit. That chapter walks you through the creation of a simple but fun game called TextShooter, which you can find in the book's source code archive.
After writing that chapter, I spent some time completely a couple of things so that TextShooter could ultimately be submitted to the App Store. It's available now
, costs nothing, and is both challenging and fun, IMHO!
Also, I've made the enhanced version entirely open source, so beyond what's covered in the book, you can also see how I handle Game Center, create tutorial levels, and more. See the full source code on github