You might be depressed the same way I am. You know, when you are alone in this world, an outcast because you dared to be different than others. You try to hide your feelings by having all sorts of projects in form of a difficult challenge. But you end up working reluctantly, because at some point you realize how it is and that your life is empty, without the thing even you as a superior human being are missing: love.
Well, at least that's how I feel.
Look, bro, writing a video game, talking about video games, or talking about writing video games is not likely to get you out of the place you're in. Neither is trolling the interweb or otherwise being a pain in the ass in virtual public. It might take the edge off, but it does not improve your situation -- which will get worse and harder to get out of the older/balder you get.
You say you're a smart fellow. Use that to find yourself an understanding woman. There is no substitute. If you were the kind of guy who can derive sufficient satisfaction from his work alone to keep himself going, you'd have a large body of satisfying work behind you. That ain't how it is, as far as I can tell. Get a different plan.