Ocarina of Time, but it wasn't the first one i played. Once apon a time I saw it at a friends house, he rode his horse, time traveled and played some mini games, I thought that was awesome. But the first game I played was about a year later, I got a hold of Links Awakening DX, I wanted it cause it was zelda because I saw Ocarina before and it was awesome so the gameboy game might be awesome too, and it was. So I've been a fan ever since.
Year later i got to finally own Ocarina of time, got stuck in the deku tree... so that was put on hold for ever. (YES I know the first dungeon i got stuck, but I tried jumping on the webs and it didn't work, so i figured that couldn't be right) A friend at school eventually told me what i was supposed to do, mind you back then having the internet was rare. So i played it and eventually beat it. Even though Links Awakening was my first game, OoT still holds way more nostalgia. It was the first game I saw, and it took me so long to beat it cause I'd get stuck some times, or I'd just play mini games, or ride around on my horse, and don't forget searching for those spiders in all corners of the map.