So let's get a little existential.
For every gamer in the world, there is one video game that changed them, one that they look back upon and attribute many things about themselves to them, whether it be their gaming careers or they themselves as a person. They have many reasons why they consider this game the one that they look back upon more than any other, and it could be for any number of reasons, be they nostalgia, changing their outlook, or perhaps even changing their lives.
For me personally, Final Fantasy IX is that game.
I have played plenty of games prior to IX, certainly, but IX changed my outlook completely on them. IX was the first game I ever played that had an intricate story with development, a world onto itself, and characters that just seemed to spring to life out of the disc and the TV. It was also the first RPG game I ever played, the first Final Fantasy game I ever played, and the game that firmly established my love for video game soundtracks.
It made me realize and firmly believe that video games are more than games, more than just manufactured electronic apparatuses that are used to waste time or unwind. It made me realize that video games had potential for as much love, respect and admiration as any TV show, movie or book. The amount of effort that was made into Final Fantasy IX opened my eyes and appreciated the people who toiled endlessly for months on end to try and release a quality piece of work.
So for others on here, what is that "one" game for you?