Who is to say that a screensaver is no longer necessary? Not I. For me, a dark screen is a black hole that sucks down all the energy in the room. Let's keep it alive, giving something to the space...O-R-G, the brilliant software company, creates screensavers among other digital things. They are great thinkers and creators. For every order you receive a postcard which has a unique download code for the software printed on its ""holographic sticker"". Works on macOS v10.10+