"John Carmack, who has become interested in focusing on things other than game development at id, has resigned from the studio," id Software studio director Tim Willits told IGN. "John's work on id Tech 5 and the technology for the current development work at id is complete, and his departure will not affect any current projects. We are fortunate to have a brilliant group of programmers at id who worked with John and will carry on id's tradition of making great games with cutting-edge technology. As colleagues of John for many years, we wish him well."
Carmack joined up with Oculus VR as Chief Technology Officer in August, but remained with id in the months afterward, serving in a leadership role for unspecified projects.
Carmack's resignation follows up on former CEO Todd Hollenshead's recent departure from id, ending a 17-year tenure with the company.