The game starts out with a back-story describing Earnest Smith, an explorer that goes deep into the zombiefied dungeons. He uses magic to fight off the zombies, eats moss burgers to keep his energy up, and uses antidotes and anti-zombie spray for health and defense. After 29 days, however, he was succumbed by the zombies and became one himself. This is where you come in. Your goal is to go as long as you can and see how long far you can go before you get turned into a zombie.