Check out Beloved Jakub, which is Sven Holmstrom’s two player roleplaying game designed to be played over the telephone. It’s heavy as lead and can be played in way less than an hour. It reminds me of what I saw in A Day in the Life, but of course it is GMless. All the strong guidance is provided by the text itself, front-loaded in an introduction and then deeply enmeshed in a pair of tightly bound character backgrounds. I see huge potential in this approach.