Oh, geez. Here we go again. Well, I'll sum up what we've learned so far:
It is fiction and it's interactive and it may be art, but then again it
may not be. Or, more accurately, it can be art but it doesn't have to be
because it can still be a game, although it doesn't have to be a game
since there's nothing to prevent it having a serious purpose or even just
being a book. Well, not a book really, since it's not on paper, but you
could print it out and then it would be a book -- but it wouldn't be
interactive then, would it? On the other hand, it could be both a game and
serious and still fall short of being art, but not necessarily, just as
not every artful book is a game and likewise the other way around.