There's a chapter on Depression Quest in Videogames for Humans. It starts on pg. 383!
This game is also mentioned in an article entitled "Autonomy,Heteronomy, and Representations of Illness in Digital Games" by Arno Görgen and Stefan H. Simond from Games and Ethics Theoretical and Empirical Approaches to Ethical Questions in Digital Game Cultures.
The Wikipedia page for Depression Quest is a good read for background
Depression Quest was a game that was part of a storm of harassment perpetuated against its author, Zoe Quinn during "Gamergate." It seeks to simulate the negative feedback loop that depression creates in people.
As an aside: If you want to know more about how Gamergate affected internet culture, see "Everything is Gamergate" (there are multiple articles in this feature--keep scrolling):
From Teaching Games and Game Studies in the Literature Classroom