Doomsday survival challenge

The end comes, species change, and the world is overrun by zombies.The disaster came suddenly, and the human survivors were unable to cope with it, and they tried to dodge the challenges of survival on the seventh day.The first man to kill a zombie with a keyboard, thereby obtaining a hidden identity and being stuck with a BUG in the system.As long as he hunts zombies and collects gel, he can get various rewards, unlock technology research and development equipment, and control the corpse doll to dominate the end times.Since then, he has run amok in the last days, allowing all mankind to become their own workers.