Zombie Horizon

A virus spread rapidly in Gathem City, and before it spread out the entire world, the president lockdown this city in a flash. Before the lockdown, some people are rescued. Other people get infected with the virus, and others like me (you, the player) were stuck in here.A broadcast appears everywhere in the city. Announcement to everyone in this city that the city will be bomb after one week, but there is still hope for us to escape.Go to the Gathem Horizon they said because there is a gate there waiting for us. To escape this nightmare I need to survive.