Earlier quoted context omitted.
This game looks obvious problematic as far as marketing goes in my opinion. I mean, just look at the name, for starters.
Stardew Valley didn't do much marketing either. Yeah the name isn't very good. And yeah the base engine is RPG maker (re the other comment here). But this is kinda my original point. Making a game with a good name, or a different engine, isn't going to mean it's successful. You can always point out something in terms of "well it's clearly failed because X". Hell, people even say the Unity3D logo scares them off. But…
You may be right that a good name or a different engine won't save a game, but I don't think the game you chose as your point is one to demonstrate that.
> But people really like that game.
It seems most people haven't played it.
And there are often game with, say, awful graphics, that are awesome to play. It happens. That doesn't mean you should bank on it.