I would like to thank my family above all, my wife, Caroline, and my four amazing children (Alexander, Caitlin, Jessica, and Nathan) for putting up with me and giving me the space to write this title as well as my other extravagances—they truly lift me up and keep me sane. They are my rock, my shore, my world.

I would also like to thank Jamie Hales of PixelBalloon who generously donated some content for the Appendix and gave me new ideas and insights to look in to.

A big shout out to all the guys who ran and helped me out with the Unity porting events, which I supported throughout the course of this book, namely Lee Stott, Simon Michael, Riaz Amhed, Louis Sykes, Ben Beagley, Josh Naylor, Mahmud Chowdhury, and Michael Cameron. Also, the Unity evangelists who were badgered throughout the events and were pumped for hidden details: Joe Robins and Andy Touch. Truly a great crowd to get game developers energized and their titles onto as many platforms as possible. Lots of weekends lost to writing, but the book was better, for it was with so many different experiences.

Finally, thanks to the reviewers of this title who kept me grounded and on target, although that didn't help to keep the page count low—thanks for your support guys.