"Tie-in." If you're hearing the term outside of a purely technical sense, odds are it's a pejorative. It's not something we call works we like, even when they fall within the (sometimes blurry) definition. "Tie-in" seems so cold, so mercantile, it might a well be "cash grab" or "knock-off." I'm sure you're already thinking of examples of tie-ins that fit one or both of those descriptions - but I won't name any myself, because all art is experienced subjectively. What might appear as crass commercialization to you may be the take on a character or property that "clicks" for someone else in a unique and meaningful way. Not to mention that, under capitalism, commercialization is inevitable, whether it's an original concept or something adjacent. And if we look at the concept of tie-ins the right way, we can gain some perspective that applies to our own creations... especially, as with most tabletop RPGs, they ex