: Constant attention is required for your health and stamina bars. Eating homemade food restores stamina, while medicine is needed to treat infection from walker bites.
: Players must physically drive weapons through a walker's skull to neutralize them, with different weapons requiring varying force and technique.
: Features a new "boss" antagonist—a madman known as the Axeman—and introduces night missions with increased danger.
: Adds new weapons and tools, such as the chainsaw and submachine guns.
