Rise of the Tomb Raider game director Brian Horton has left developer Crystal Dynamics, the studio announced on its Tumblr page today. Horton was the senior art director on 2013’s Tomb Raider reboot and moved into the director’s chair for the follow-up, which was released at the end of 2015 on Xbox platforms.

“It’s been a huge honor to be a part of the Tomb Raider franchise and the team at Crystal Dynamics,” Horton said in a statement. “I’ve met fans from all over the world, both in person and online, to share in our love for the franchise and Lara Croft.”

Horton said he’s moving to southern California with his family to “start a new adventure,” though he didn’t say anything further about whether or not he’ll stay the in the game industry. There are quite a few game developers in southern California, including Naughty Dog, Riot Games, Infinity Ward, and Blizzard.

“As sad as I am to leave the team at Crystal, I’m excited to play their future games as a fan,” he added. “Thanks again for the years of support and feedback and I hope to stay in touch with you all online.”

Crystal Dynamics is reportedly working on a third new Tomb Raider game, and has considered a new Legacy of Kain.

Rise of the Tomb Raider launched in November 2015 for Xbox One and Xbox 360. The game comes to PC later this month and will debut on PlayStation 4 this coming holiday season. On Xbox platforms, the game has sold “well over” 1 million copies, according to Microsoft.

The game’s new Endurance mode was released at the end of 2015, while even more expansions are planned for later in 2016.

Rise of the Tomb Raider has been nominated for a total of nine awards, including Game of the Year, at the upcoming D.I.C.E. Awards. The action-adventure game received more nominations than any other game in the field.