If you went back in time to the days of the Roman Empire, and you asked some dudes if they were gay or straight, they probably wouldn't really understand the question. Our concepts of sexuality are just radically different from what was held by other cultures in other times.

And likewise, if you went back even to the late 90s and asked people about "gamer culture", they'd probably be pretty confused. The idea of people who play video games sharing in some kind of "culture" wouldn't make sense (I would know, I was there). Other than maybe some concept of people who play a lot of video games being a bit nerdy, there was no such thing as a "gamer culture". I mean, only families that had money for a console could really have "gamers", so maybe there was some skewing to kids who were better off materially. And there were very few adults or girls who played video games. But again, hard to call this a "culture".

Gaming only emerged as a "culture" with the advent of well developed online multiplayer games and online forums for discussing games.