Justin Richmond, who was working on Uncharted PS 4 a s game director, has left developer Naughty Dog.

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"I have in fact made the decision to leave Naughty Dog," Richmond told IGN. "I love the company and the people and know that they will continue to create awesome games going forward. On a happier note, after careful consideration and exploration I have joined Riot Games. There is some really innovative stuff going on here that I can't wait to be a part of."Previously, Richmond oversaw Uncharted 2: Among Thieves' multiplayer and worked as game director on Uncharted 3: Drake's Deception. He had been with Naughty Dog since 2008.This news comes shortly after creative director Amy Hennig's departure from Naughty Dog earlier this month. Sony specifically noted the duo's involvement when it revealed Uncharted PS4 in 2013.Sony Worldwide Studios' has been having a rough month , with numerous layoffs and other departures across the company in March, 2014.We've contacted Sony and Naughty Dog for comment.

Mitch Dyer is an associate editor at IGN. He's trying to read 50 books in 2014. These are the 50 . Talk to Mitch about books and other stuff on Twitter at @MitchyD and subscribe to MitchyD on Twitch