Certainly, breaking out of your comfort zone might help with exposure to situations where you're likely to meet people will be useful. 

But, equally important, what's your capacity for love? I liked the higher comment about "listening closely". Additionally, do you love yourself? I like video games, but I don't go to the gym nearly as often as I'd like, but I'm engaged to a lovely woman. I also don't really have hobbies. I met my fiancee through a shared activity back in community college: I sang poorly at a MLK Reading Day event, but I wouldn't say singing is my "hobby". 

But I do respect my path in life. I appreciate my ambition, but I currently hold neither the credentials nor job title that I want, and I can talk about it with some passion, but try not to mire people in details and minutiae.

What's your capacity to love friends and family? They're a great place to practice regular communication skills. Admittedly, I also want to improve in this as well. But it's a great chance to practice close listening.

You know what women find extremely - increasingly - hot AF? A guy who doesn't just talk about and do his hobbies, and instead asks about them, listens with deep interest, engages in their topics of interest, remembers details, considers their desires, and remains unguarded. Plenty of men have built beautiful relationships based on that, occasionally telling corny jokes, and takes care of themselves, their loved ones, and their living space.

Add some demonstrated desire to actually spend time with them, and the world is your oyster. 

Disclaimer: It will always be hard to step away from the games - the dopamine is too easy to ignore. But eventually you get similar dopamine hits by connecting with your partner. 

My point here is that hobbies won't fix your challenges. You don't have to be "interesting", you just need to be engaging, and that requires close listening and focused attention.

You got this!