But linking to your stuff will at least not cost you.
You face the problem of getting popular in a "market" where there are literally hundreds of thousands, maybe millions of people trying to do the same. But the average user will only ever know maybe a thousand games/devlopers. Give or take.
That is why I asked how many devs/games you did notice. And maybe ask yourself how they got noticed by you. Was it a popular ranking list. Did you stumbe upon it randomly in a feed. Did you search for a specific oddity or nieche. Was it recommended to you. etc.
You talk about his for example?
https://itch.io/games/tag-robots/tag-space-sim
Well, you could always peek and try to figure out what the games above your game do different. Also what the games below you do different. For only 16 games that will be highly inaccurate, but maybe you gain some insights. Try to see their marketing or try to assess if their game is really better/worse than your game. Hard to do, since you might be biased in judging your own stuff. (Some overestimate their qualities, some downplay their stuff. Could be either way)
That they are above you in the list, because they are above you in the list is too easy an answer. It might work for Kardashian fame of being famous for being famous. But you still need a little substance to kickstart fame. And as I said, many try that. Think about audition for singing contest in tv. The many thousands applying and only a few being featured in tv, and even even less in the actual contest. And not even "the best" singers winning or getting attention.