I have really cloudy memories of the Christmas when we got our PlayStation 2. We were at my grandparents’ house, and I mostly remember just both my brother and I completely losing our minds in excitement. Those videos of kids absolutely flipping over getting a Switch? That was us about 20 years ago.
Fandom inevitably appears with any kind of media and, just like anything else, fandom can come and go. The further out we get from the initial release of a game, the less active the fandom may be, or the fewer people may be involved. With modern games, we do see content carrying on for years after the initial game is released, most often in the form of DLC, expansion packs, or cross-media content like movies, books, and more. Content like this can give a little spark back to the fandom that may not have been as active in the meantime, but what really keeps a fandom going is the people participating in it.