The Bad News game confers resistance against bad online information by putting players in the position of the people who create it. This document provides background information on how the game was developed, how it works, and what it is based on. It also goes into the concept of disinformation in a broader sense, and explains how the game covers its various aspects. This document is meant as an explainer for educators who wish to use the Bad News game as a teaching tool. It also provides links to additional information that educators might find useful.