Talk:NPC/@comment-118.208.221.33-20120912120431/@comment-69.55.17.110-20120915142928

You tried to block the hole up with dirt and then still the zombies come? Well, if it's nighttime, then that's only natural. If you have some Wire, some Dart Traps, and some Pressure Plates, then you can use those to help fend off the Zombies. You can find more traps at this page here. Good luck!

P.s do your houses have the House Requirements? If not, then that's probably why your NPC's are always outside. Also, you can find house defense tips at this page here as well.