I'm not altogether sure how you'd know this soundscape was supposed to evoke a zeppelin if not for the title. But maybe that's actually a strength in this case, because it means that the loop isn't locked into just one use. There is a steady background thrum that does sound vaguely like a propellor; otherwise, the ambience consists mainly of ticking clockworks. That makes it useful for many different types of situations where the adventures are in or near any number of clockwork contraptions. (If you're not familiar with this series of background loops, be forewarned that by design there is no music here, just sound effects.) Finally, a quick proofreading note to Plate Mail Games, the "P" in "steampunk" shouldn't be capitalized.