Whoa, I actually went in blind, and as a result, this was a lot deeper than I had expected. You really nailed the feel of overwhelming depression (and how, once it hits, it's extremely heckin' hard to do anything)--not only with the writing, but with the movement mechanics, pickups, visuals, and music, which all contribute massively to representing this feeling.
I've never seen depression portrayed via these kinds of game mechanics before. Very well done.
Reading your game's description shines even more light onto how much thought went into this, such as how you describe how the game manages to represent the feeling of the ground falling out from under you when one wrong thing catches you off-guard.
I am so sorry for your loss, and you have a real talent for conveying very real and very difficult feelings through this medium.
Wishing you all the best.