It’s one of those, How does the customer know to buy/play your game if you don’t let them know?
I used to do film. There’s an estimated 50,000 films made each year. How many of those films were you aware of? Most people become aware of maybe 20 or 30 in any given year. About 200 make the cinemas in a normal year. The vast majority of filmmakers never consider marketing.
If you don’t market it, you’re relying on people who will be looking specifically for your game (for the most part, very few), or searching for a particular genre (more but unless you have something that’s special, it’s going to be hard to gain traction but this is also a point on why it’s important to stand out from the crowd).
Games are even more crowded than films. This is why marketing is so important. Cause if you don’t market it… how are they going to know?
Youtube stats are even worse. The vast majority of videos on youtube never get more than ten views.
It was a couple or a few months ago. From what I heard, if you didn’t do it at the time, there’s no way to get access to the content.