I do think some games are works of art, although their medium is visual rather than verbal. Both games and novels allow the reader/player to become a protagonist in the theater of the imagination. Both build worlds. In my opinion, the big difference between game and novel is in narrative structure. Communal role-playing games are open-plan without an end. A novel - at least the kind I write - has a closed structure with a beginning, a middle, and an end. I like that closed structure, and I feel I can say more with it.