why? because its a great game, nothing else
I'm from europe and FF7 is pretty much the first FF to come out here, but hear me out, FF7 is my favorite game ever, and heres how it became so, i never saw commercials, never read articles on it, no one said to me how great the game was, i simply went to a friends house, and i just simply put the disc in my friends ps1, turned it on and started a new game, that intro blew me away, and i didnt even reached the first boss and i imediately fought that i had to buy a copy for myself
sure compared to now the game looks bad graphically, but no one can say its not a great game, it has a pretty good story, with very accessible, fun and challenging gameplay, with lots of side stuff to do, its not really hard to see how a game like that became so popular, wether you were informed about it or not