My first "Civilization" game was actually the original Colonization. I played that in the eighth grade, even found a way to play multiplayer with my sister (a sort of hot-seat, we spent the first 1,000 gold on a second Caravel, she took the soldier and I took the pioneer, we would rotate with immigrants and keep track of our individual export income). Then I got the original Civilization game and have been playing ever since. It's the only video game that I put any real time into (occasionally I'll play something like Sim City). I had 2,000 hours in Civilization 5, but have (finally!) made the full conversion to Civ 6 now that we have the new expansion.
I used to play multiplayer with my father on a regular basis, but he doesn't seem to have the time for games with me any more. I'm too afraid to play multiplayer with random people, because I generally prefer co-op (or at least not hyper-competitive) play. I would never attack a human player, only AIs, for example. I've gotten rather lonely the last few months and at least felt a need to talk about things with people who share a similar interest.