Thanks for the reply!Well, I've started a month ago, and now I have 700 views in total.
The first views and subs you get are usually from friends. I wouldn't urge them to subscribe, though. If they just sub because you are friends and don't watch any videos, they are an inactive subscriber. But however, they can help you out with feedback and such.
I didn't have that much success with let's play content, but I saw you are not doing that. You cut quite a lot and put some entertaining music under it, so I would not necessarily market it as a let's play series. I don't know how many videos you want to make of the same game(you put numbers in the title), so maybe go with lets plays. It's up to you what you want to do. With your titles and thumbnails, I could see that working. Your videos have quality, that's a great start!
First of all, it takes some time for YouTube to understand what your channel is all about.
One good source for traffic is of course SEO. Ranking for games isn't easy, except they are really niche, so you probably want to find something inside that game niche.
For example, one of my videos is called " When Dual-Wielding Melts Bosses in Gunfire Reborn, Ao Bai(Second Hero)".
That video got 60% of its traffic from the YouTube search. I targeted tags like "gunfire reborn dual wield" or "gunfire reborn dog build".
It's not easy to find the balance between too niche and too competitive at the beginning. A new channel simply gets not enough views on their videos to compete a lot.
Your first video seems to not rank at all, so I would redo the SEO for less competitive keywords. Try the keyword explorer and YouTube search auto-suggest to find new keywords.
When I started my SEO wasn't great and basically all views were from friends.
Once I started posting my videos elsewhere, I saw view counts in the few dozens. So what I would recommend is posting your videos on steam or discord or other sites. This helps a lot in the beginning. For example, I've posted my last video under the game page on Itch.io and so far the video got a third of its traffic just from the one post that took me 5 minutes to make. So if you find a way to promote your content on places where it's appropriate go for it.
That's how I've been slowly growing my channel.
My next plan is to focus on one game and make half of my videos about that game, so I get a lot of people interested in my channel who also play that game. If they find one video of mine, they can watch a lot of my other videos, thus increasing watch time on older videos. It also helps you with ranking, since YouTube learns that your channel makes a lot of content about that game.
But keep in mind that, even if you are doing everything right, it's all about exponential growth. So you might only get 100 views in the first month, but then 200, and 400, and one day you get more views than you could have ever imagined. So the most important thing, in the beginning, is to just produce awesome content, and slowly you'll get somewhere. It takes time.