I think that in general - well, at least it's true for me - you tend to put something of yourself into the story as a whole. Not necessarily in any character, you understand. But you've got your own way of looking at the world, and that naturally will affect how you craft a story.

Prose is an art form, movies and acting in general are art forms, so is music, painting, graphics, sculpture, and so on. Some might even consider classic games like chess to be an art form. Video games use elements of all of these to create something new. Why wouldn't video games be an art form?