The virus broke out in the city. It came so quickly that most residents have no time to evacuate before the lockdown.
You are one of them. You have to survive among other survivors, parades and zombies and escape before it’s bombed by the government.
It could be a strategy or a shooting game. You could build defense works and deploy manpower.
In spare time, you may also build campsites to keep campfires, sleeping bags, store materials and place survivors. Don’t forget to raise chickens and plant fields to make a living!