Biters

Biters: Takes place in the seaside town of Claymouth, which is overrun by zombies after a strange man with a gun starts shooting at the towns people and no one knows yet what is going on.

A police officer, a resident of the city and whose name is unknown (at least at the beginning of the game), runs into this situation, and in his duty to safeguard the well-being of the inhabitants, he meets a colleague who tells him that They were sent to control the situation but it's too late as a green monster has killed his companions and he can't fight alone.