This melancholy London—I sometimes imagine that the souls of the lost are compelled to walk through its streets perpetually. One feels them passing like a whiff of air. – William Butler Yeats Cloaked in fog and rain, London is a city that invites imagination. Its inhabitants all bundled and bustling, London brings all walks of life together while keeping everyone at a distance. “I love watching the city as it transforms each evening,” says Josh Unsworth, creator of Between Us, a narrative game about two strangers thrown together by chance one such night. “Any city at night has a magical feel, but there’s…