Instructions
Create the workbench to forge a bow and arrows before you hunt zombies. When a zombie appears on the screen, press the right mouse button to fire arrows at it. The number of arrows it takes to kill a zombie varies by the difficulty level you are playing.
Use the workbench to forge a sword. When a zombie is in front of you, draw your sword and left click your mouse to attack. The number of swings it will take varies by the material used to craft the sword and the difficulty level of the game. Continue attacking the zombie until it falls.
Locate a zombie at night or in a cave. If it's in a cave, make sure the zombie sees you so it follows you outside. Then, hide in a structure or keep running around until it is daytime. The sun will light the zombie on fire. When its burned body falls to the ground, it has been defeated.