the genuine actual secret to this is that i've simply been mutuals or friends with everyone you named for seven+ years, since long before they did the things you probably know them for! they, like me, have been making things and putting them out there for Ages, simply indulging in making shit that gets them excited and keeping their ear to the ground to find other people who do the same. now was simply the right time for us to work together!
which is all to say: if your dream is to replicate this sort of thing... keep making cool shit and putting it out into the world, and pay close attention to your friends and mutuals who are doing the same! show 'em some support and community - that's how you turn pet projects and passions into beloved exceptional works of interactive art or oddly moving youtube video game improv comedy empires