You get the digital version of Apocalypse Survive, distributed via DriveThruRPG. Think about it: other people will only be able to die once, but not you. Ask the Master of the Apocalypse for further information.
You get a physical copy of the zine, together with the digital version. When nearly all humanity will be exterminated by an invasion of giant butterflies, you will be one of the last alive, holding the sacred book from which to rebuild the society.