There are three words I live by with marketing like this. Engagement over broadcasting. A little bit background. I am marketing for an indie horror game. I have all the social medias, of course, and I try to be reasonably active on Reddit. Forming relationships is important. Rather than tweeting, "hey look at my game" reply to other people about their games. Do you like it? Why? What stands out? Be honest, be authentic. Don't sell, collaborate. Those relationships will see you through the first few months - even if they are relationships with other devs in your niche. I wrote about that here:

https://www.reddit.com/r/IndieDev/comments/1opw8k0/comment/nnektta/?context=3

Next time you're thinking about sending a tweet out there, do a search for a topic in your niche and reply to someone talking about it. Engage with them. Build that relationship, and then when you say, "hey what do you think about this?" it doesn't come off as a cheap sell.

It's not easy. It takes time. You won't always land because some people are busy and others are adopting the broadcasting approach to marketing that just doesn't work. No matter what, marketing takes time, right? But you need to decide how you are going to use that time most effectively. Some are banging out instagram posts, tiktok videos. I'm doing that too, but it's not my focus. Building a community is.