Kodu provides an end-to-end creative environment for designing, building, and playing your own new games. The core of the Kodu project is the programming user interface. The language is simple and entirely icon-based. The Kodu language is designed specifically for game development and provides specialized primitives derived from gaming scenarios. Programs are expressed in physical terms, using concepts like vision, hearing, and time to control character behavior. While not as general-purpose as classical programming languages, Kodu can express advanced game design concepts in a simple, direct, and intuitive manner.