It's easy to recognize if it's art or not. Art is thought provoking. It is something that has a message between words. You wont see or hear this message, but you can feel its presence. Then it's your job to look within yourself and interpret those feelings. Everything else that "looks nice" or "sounds nice" but doesn't make you feel that thought provoking presence I've talked about, is just craft.
So to answer to your question: almost all games are only a craft. And to be honest I can't even think of a game that would agree with my description. I can think of music, paintings and films, but no games.