I was asked, not a long time ago, to GM a zombie-apocalypse one-shot. Being versed in horror-GMing, I decided to approach the genre as I approach most other genres of horror, but I've encountered a problem: the zombie-apocalypse sub-genre is way too different, and I'm having trouble translating it into a game. As such is the case, I'm feeling kinda lost right now, and I'm asking you for help.
So, how do one GMs a zombie-apocalypse game?
I'm far more interested in help in terms of writing the game, but tips and suggestions about how to run the game will be also highly appreciated.
I'm looking for help in creating a game close enough to Night of the Living Dead, the archetypal zombie movie, in terms of the feel.
Night of the Living Dead (and also Dawn) was outright scary. This is the kind of feeling that I'm after. It was more around the way the characters coped with the situation, and how they tried to handle it than anything else and through their conflicts the story became scary. The zombies were there, and prominent, but it was less about defeating them and more about coping with the dire situation that the world revolved into.