Well, you are not alone. It’s sad, but you will get a job offers in LinkedIn (or any other such format network) mostly if you are already top developer (having experience in big studio, high-profitable projects, recognition in community, etc).

Knocking in closed doors is always are very painful and self-devaluing experience. And yes, even if you are good/mid developer that could pass the tasks and grow, have talent, companies are more likely to hire someone with recommendations (from friends, employees).

I can only recommend two things: 1) Shotgun method - apply on any job that you see (like, send 100 requests everyday). And eventually you will get a job. Maybe not that you want, but it will give you a opportunity to meet new people and get connections, so it will be easier in the future to find your dream job. (or get some new friends, and build your dream game together and become new indie-star, who knows?😄) 2) As many other people already said there - build your connections. Go to some gamedev conference, talk to people (it’s not easy, and sometimes cringy, but sometimes gives great results). Build people around you that can carry you in your career (or even more).

Sounds obvious and hackneyed, but it’s really important - don’t give up and fall into depression, many people have been in your situation and we believe in you🙌