The Legend of Zelda: Ocarina of Time is perhaps the most well-known game in the Zelda franchise. It was the first game in the franchise to be in 3D, and it revolutionized the idea of 3D adventure games.
The plot follows a young boy named Link, who is set on a quest to stop the evil Ganondorf from obtaining the Triforce to achieve godlike power. This eventually leads Link into traveling 7 years into the future where Ganondorf has already taken over the kingdom. With the help of his fairy companion Navi, Link must do what he can to bring down Ganondorf from power.
This run by Swordless Link aims to complete all of the game's main quests while not performing any glitches. You can find more information on what is considered main quests by reading the author's notes. You can also read up on what is and isn't allowed in glitchless runs on the speedrun.com page.
Note: Using RTA timing, this run clocks in at 3:20:30.03.