Your games look fine in my opinion. People just don't make conversation easily.

You've only made one game from what I can tell, so it's a bit early to conclude that you don't have an audience. Game development is about trial and error; the more games you make, the better your chance. As long as you enjoy your game, then you can never be surer you have an audience. As for people not wanting to converse on here, I don't think this forum as active as the games page.

With regards to the audience: we live in times where you need to pay for people to play your stuff, regardless how good the product is.... in order to build an audience.

The problem here is, that we're catering to each other (content creators), lol... but not to the audience that is stuck at YouTube, Twitter, Steam (or other marketing platforms) , that we can't reach... thanks to Google, facebook, Disney+, Netflix, Crypto, Politics, slide-show channels, unboxers, and other advertisers who pay huge money to get that last bit of audience that is out not looking for mainstream. And even for them it becomes harder and harder

Bottom line, it's not worth thinking about whether you have an audience or not. Do it for yourself, is the best approach

I have recently also created a game, mostly for myself, as I always wanted to play a game that features slightly more advanced opponent multiplayer AI in 6DoF, and there was no other game than Forsaken 64 who featured such. Win win

I think your own words on that game's comment section answers your question: ". . . the game is simply a platformer." 

If it's "simply a platformer" then what's the appeal? The vast majority of people who come to Itch.io have played a platformer of some kind, so unless your game offers something special to that genre, there's not much incentive to try it out.  

That being said, adding a gif of the gameplay would 1) make the game page more interesting  and 2) show people what it looks like in action.