I was asked to explain how DayTrippers - with its collaborative interpretive action resolution system and narrative arc model - can be considered "OSR". Certainly those things don't sound very "old-school". Indeed, the action resolution system in DayTrippers is based on a Narrativist technique, and the whole idea of working within a narrative arc is more Modern than Trad. At first glance, these things might make DayTrippers seem decidedly "new-school". That's especially true when we consider the Core Rules alone. But the DayTrippers GameMasters Guide is a different sort of animal - a blend of traditional and modern techniques - producing high-prep, high-bleed adventures, designed to be run by Auteur GMs. Within the pages of this book, DayTrippers meets the OSR. Let's see how it stacks up against a classic definition of the term.