If my YT grows at the rate it has, then it could be somewhat successful. Won't make me millions or anything like that but chances are I could break even if I try hard enough. I don't want to be Undertale levels of fame and create an unholy fandom that watches and judges my every waking move, that'd be awful. But a medium-sized cult following that supports me would be nice.

Edit: OH WAIT IT MEANT WHAT DOES SUCCESS MEAN TO ME OHHHHHH.

My bad. Allow me to elaborate on what that is.

If the game makes someone feel a really strong emotion, whether it's excitement from a hype scene (of which there will be multiple of), sadness from a very sad and emotional character death (of which there is one), or anger from how much they hate the game. (of which at least one person will most likely, and I cannot wait to see what they have to say.)