Yes, the examples of play for Traveller early on are all free form narrative, without even rolling the dice. A lot of Traveller happens in the time before chargen, and during, as Traveller, and a lot of sci-fi rpg's have already developed characters to deal with a scientific universe that usually is also well developed. So even if GDW started with D&D, they were rolling through open countryside pretty quick.Its pretty D&D specific, but I think I've pretty much posted essentially the same taxonomy in some 'history of D&D' thread somewhere at some point. Essentially you have D&D itself, and other early TSR variations (Holmes, B/X, 1e), then you have 2e which is somewhat transitional but definitely blends into 3.x, and finally 4e. Outside of D&D the groupings kind of fall apart though. I mean, its not super clear what games that emphasize a lot of dramatic elements, AND mechanics, like OWoD, fall under, really. There are really relatively few other games that fall under this definition of Old School besides D&D and a few other early games. I mean, even Traveller defies this taxonomy, as it involves a fairly elaborate character generation system that can produce a wide variety of outcomes, followed by a mostly pretty trad game, but with a few aspects that, at least in the '77 version, hint at Narrativist play to a degree (like when you use Streetwise).