It has already been confirmed that there will be NPCs in the next update of PZ, but the devs have said nothing about NPCs that don't want to co-operate with the player. These possible groups of NPCs include: 1. bandits and looters, groups and single NPCs that might, on meeting the player, would attack the player and/or loot the player's safehouse(s). 2. NPC groups, groups of up to 8 NPCs that hold out in their own safe-houses and don't want to meet the player. Equally there might be groups that function similar to "the Governor's" or "Carver's" groups from the walking dead where they would kill or enslave any other survivors. In both cases, these NPCs would attempt to shoot the player and some of the larger groups might live in sealed off communities of buildings.