Yo, game creator here. Chill out with it, I know you probably didn't mean for this to get this out of hand but there are a multitude of games on the site that don't have demos or anything playable out, it's like a landing page for devs to update people on their project. I would know that because I am a dev and have done the same thing, regardless, DN has steadily been working on the game, coming onto his page with all this negativity isn't helping anyone when he basically makes the game by himself.
Now you were obviously interested in the game because you clicked on it, It is an online site, there are a bunch of troll games and troll pages with viruses and nothing on it. Dn has been constantly updating his followers on the game, his page isn't a waste of space in the sea of abandoned, dropped, and not even worked on projects.
I doubt you've even touched something like game developing nor have you experienced how stressful it is with hundreds/ most likely thousands of people who are actually interested, dming you, asking when it'll release, dropping hate because it hasn't released, and then people like you dropping these comments for no reason.
You're still here responding to people on the internet with such articulate responses which leads me to believe that you don't have anything better to do, even if you work this seems like it takes precedent, now, what you could've done was send a positive message the small game team's way but you didn't think of that. Anyway, I hope you have a good day, please, try to spread some positivity somewhere, because you damn sure didn't do it here.