Book excerpt: Used by blockbuster game studios, indie developers, and computer science educators, the Unity Game Engine is one of the world's most popular tools for creating real-time interactive graphics. This volume provides an accessible introduction to the expansive Unity ecosystem through a series of unique activities that illustrate some of the important concepts of game development and real-time graphics programming. In a computer-driven world, these coding skills are useful for not just game development, but also contribute to core computer literacy.