I doubt a no name company would be pulling all this attention out of marketing alone. If it was this easy everyone would do it.
In all fairness, this is not a great game. It’s a very derivative game whose only appeal is that it combines things in a way that hasn’t been done much. Like many other hype trains of questionable quality, it just happened to scratch the right itch for the right people at the right time.
Kind of how Fortnite was a rehash of stolen ideas (originally) of PUBG
The reason people originally hated Fortnite was because not only did they blatantly plagiarise PUBG, Sony also intentionally screwed over PUBG to make Fortnite more popular