Now Playing: 12-02-13 Marketplace Tech - Where video games meet metal health

This week, Marketplace Tech takes a look at the intersection of video games and mental health. We'll be talking with a few different people -- researchers, gamers, and game designers. Today we'll speak with artist Kara Stone. She recently built her first video game, but instead of a battlefield or a fantasy world, the game's landscape is built around the experience of mental illness.