Sign up to receive each week’s Playlist e-mail here! Also check out our full, interactive Playlist section. Prune (iOS)  BY Polyculture Whether your thumbs are green or usually poised over a joystick, Prune will have something for you. As the virtual botanist/god of the universe, it’s up to you to help a blossoming tree find its path into the light. By circumventing natural obstacles like shadow and wind, you allow a beautiful, branching life to take shape. Through minimalist design and a meditative soundscape, Prune builds an atmosphere for creation rather than competition. There are no timers, no scores, not even impassable level barriers. This…