Every now and then I stumble on video game developers who have been chugging along for many years, even decades with a handful of dedicated fans. They make obscure niche games that play so well into that niche that they can sustain themselves. Honestly this is something I'd aspire to get to eventually, building a niche product that I love and that just enough people love that I could live sustainably on it, not trying to please anyone but a little collective of people who all agree on what the product should be.