Unity Game Development Essentials+CD (pdf)

Kick start game development, and build ready-to-play 3D games with ease  

Understand key concepts in game design including scripting, physics, instantiation, particle effects, and more  

Test & optimize your game to perfection with essential tips-and-tricks  

Written in clear, plain English, this book is packed with working examples and innovative ideas  

This book is based on Unity version 2.5 and uses JavaScript for scripting  

Very old, but.......