Ars Technica is proud to present our extended interview with Thomas Grip, creative director at Frictional Games and designer of the 2010 survival horror classic Amnesia: The Dark Descent. Learn more about the challenges Thomas and his collaborators faced in bringing their terrifying vision to life, the creative decisions that would echo through Frictional Games’ future titles and other surprising facets of what went into making one of the most frightening games ever.