Dawn of the killer zombies

A couple of years ago a new unknown virus has crippled the civilization due to a failed experiment. You are the last remaining human in the town. There is no help from anyone, you can count only on yourself. You are alone with 3 types of weapons , try to survive and kill as many zombies as you can!Single player mode
The current features include:

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• Multiplayer mode
  
• Gorgeous graphics
  
• Available on windows, mac linux
  
• Dynamic environments
  
• Lot of zombies