Oversaturated niche maybe. Try a different topic. What's your most viewed video? Try to make another one in it's niche

boring video
include more shotas and i will watch

From what i can gather the presentation of your last three videos is somewhat contradicting. With a title like "Mario Party's unbalanced 1v3s" i'd expect one of those 20 minute matter-of-fact analysis on game design. Instead, it's video under a three minutes. The way i see it, whereas long videos tend to be reserved for more expository, technical and neutral-in-tone explanations, while shorter videos need to be more opinionated, humorous and reflective of the author's viewpoint. Of course, that is, at best, just a general rule of thumb. ( ´ω`)

The greater issue here is writing. I don't say it out of meanness, but yours kind of sucks . "When a player lands on a square... Or perhaps, better a circle, i should say" it's a line that doesn't deserve to be uttered, much less given the emphasis you did. The rest of the video is indeed an explanation of why said minigames aren't fair, but whether you have a fair point or not, it's simply not a particularly interesting explanation

Creating any piece of art it's a question of style and technical quality, with the ultimate goal being the expression of an idea. If you want to go forward making videos about videogames then take a look at what VGDunkey or Yathzee from ZP/FR have done. Good, bad or indifferent, the videos they put out are distinctively theirs. They could (and have) make videos way outside the videogame niche, but people watch them regardless because the draw is their personality in the first place. If you want to talk about Mario Party's 1v3 minigames, that's fine, but do it your way .

PD: By "technical quality" i basically mean not sucking in more apparent ways. For example, your background music could be a couple of decibels down