If the fog survives, npc will die. According to relevant information, there are three NPCs in the fog.

1. The first one is a zombie with a pole. Throw the javelin at will, and you will die if you hit it.

2, chainsaw zombies, with an unusually large number of blood strips, basically can not die.

3. The flying corpse moves very fast and can control the attack of zombies. Fog survival is a very fun and real doomsday sandbox survival game.