The game is set in an abandoned city overrun with zombies. To attack them, you must be alive. The zombies become smarter by the day and spread their disease to anyone who comes into contact with them. To shoot zombies from such a distance, you must be a skilled sniper. If you miss once, the person you were looking for might be someone else's friend. As they eat people at night, the number of zombies rapidly increases. They can detect our presence from a long distance away and will pursue us before we can flee.
Have fun and best of luck!