Classic Postmortem: The development of the original Psychonauts was a fraught experience
Classic Postmortem: The development of the original Psychonauts was a fraught experience

www.gamedeveloper.com
Classic Postmortem: The development of the original Psychonauts was a fraught experience

DoubleFine's PsychOdyssey, which is a documentary of the development of Psychonauts 2, also dedicates the first episodes to the development of the first game:
https://youtube.com/playlist?list=PLIhLvue17Sd70y34zh2erWWpMyOnh4UN_&feature=shared