Today, the market is so saturated that even if you have the funds and interest (as a player / fan of genre), there is no way you can discover or keep up with all new releases. Steam has no way of listing them in an easy to parse overview, publications have now way of keeping up, streamers only have so much time.

The solution is to market, market, market. Distribute keys to streamers, contact publications, optimize for off-days when they need something to write about.

Finally, your game needs to be either hyper-polished or have some sort of novel angle. No disrespect, but looking at the trailer of this particular game, it seems its about 70% of the way their. Everything looks okay, especially for a small team effort, but it needs more polish. The alternative is putting yourself into a niche and marking the hell out of everything, see e.g. the success of Cogmind, whose creator has been really good at Tweeting, posting on reddit, on HN, and so on...