The term "mature" is frequently used without an accompanying definition. Like the common definition for "art" -- "I know it when I see it" -- it's accepted that people generally know what it means: It refers to content meant for adults. But the range of that content is extremely wide. On video game boxes, a Mature rating means violence, gore, rough language, and sexual themes. Of course, there's more to true maturity than the ability to handle experiencing that level of adult content, but the definition has to start somewhere. Let's take a look at what maturity means in the context of gaming.