You can add up to five more tags to your game. All the ones you have right now are pretty generic, maybe you should add some that convey your game's themes and content a bit more - for example, "witch" or "africa".
My general advice is to show your game off in communities that might be interested in it (within their self-promotion rules and, if necessary, with permission from the mods). I don't know what communities that would be in your case, sorry. Promoting your game on YouTube is only going to be effective if you have a preexisting audience there, of course.
You could also pay for advertisement but considering that your game is freeware, I would advise against that.
But ultimately, you have to come to terms with the fact that there is no guarantee of your game being massively successful. My view is that indie developers should, first and foremost, make games for themselves. Having an audience is nice, but you should take pride in having made something as massive as an RPG and in the process created something unique to you and expressed something important to you.
An audience may come over time if you're patient and pay your cards right. But as an artist, you kinda have to find intrinsic motivation because external rewards are not guaranteed.
ETA: browser play is also something that will get you more plays because it decreases the effort needed to give your game a quick try. But I'm not sure how easy it is to create web views with your version of RPG Maker.