“Depression Quest” isn’t a typical game. It’s not even typical for an atypical game. Unlike convention-violating indie titles like “Journey” or “The Unfinished Swan,” “Depression Quest” isn’t artistic, captivating or even enjoyable. Rather, it’s a gray, text-based and emotionally draining experience about living with depression.“Depression Quest” casts the player as an ordinary 20-something with a job, a girlfriend and crippling major depressive disorder. Throughout the game, the player must make simple day-to-day choices — whether to go out with his girlfriend or how he should conduct a conversation with his mother, for example — with the catch being that the best answer or answers are crossed out and unavailable, just as they would be to someone with depression.