Conan Exiles has a purge event. It's somewhat reminiscent of the blood moon here. However, there the goal of the NPCs is to destroy the base. But there is a significant difference between the games, in Conan Exiles I can put slaves to defend, and in fairly good quantities, and here I am forced to defend alone. Yes, I can use turrets, but as practice has shown, if you miss the moment with their reloading, then the zombies can destroy everything.Having the zombies actively target your actual base, destroying your containers, destroying your workstations and vehicles....that's a pretty scary proposition. Maybe a cool challenge sometimes but I wouldn't play it that way every time-- not with how fast they can destroy when grouped together.