With its unique focus on video game engines, the data-driven architectures of game development and play, this innovative textbook examines the impact of software on everyday life and explores the rise of engine-driven culture. Through a series of case studies, Eric Freedman lays out a clear methodology for studying the game development pipeline, and uses the video game engine as a pathway for media scholars and practitioners to navigate the complex terrain of software practice. Examining several distinct software ecosystems that include the proprietary efforts of Amazon, Apple, Capcom, Epic Games and Unity Technologies, and the unique ways that game engines are used in non-game industries, Freedman illustrates why engines matter. The studies bind together designers and players, speak to the labors of the game industry, value the work of both global and regional developers, and establish critical connection points between software and society. Freedman has crafted a much-needed entry point for students new to code, and a research resource for scholars and teachers working in media industries, game development and new media.