Yoko Taro is a Japanese video game director and scenario writer. Starting his career at the now-defunct game company Cavia, his best-known work was on the action role-playing video game series Drakengard, and its spin-offs, Nier and Nier: Automata. Yoko was born in Nagoya, Aichi, and studied at the Kobe Design University in the 1990s. While he did not initially intend to pursue a career in video games, after working at Namco and Sony, he joined Cavia and became the director and scenario writer for the first Drakengard game. He has since worked extensively on every game in the series, and on mobile titles, after becoming a freelancer after Cavia's absorption into AQ Interactive.

Nier is a 2010 action role-playing video game developed by Cavia and published by Square Enix for the PlayStation 3 and Xbox 360. In Japan, the game was released as Nier Replicant for the PlayStation 3 with a younger main character, while an alternative version titled Nier Gestalt with an older main character was released for the Xbox 360; Gestalt was released outside of Japan as Nier for both platforms. A remaster of the Japanese version, Nier Replicant ver.1.22474487139... was released worldwide for PlayStation 4, Xbox One, and Windows in 2021.