Here is the full list of all 24 Neighbourhood Necromancer achievements.
Have a meaningful relationship with Sam.
Beat the banshee at her own game.
Survive the attack on your home.
Have a tea party.
Discover the truth about the humerus.
Knock down a tea lady.
Don a disguise.
Raise the dead.
Murder a prospective romantic partner.
Befriend a skeletal frog.
Get thrown in a police car.
Befriend a zombie dog.
Secure animal assistance.
Befriend a zombie cat.
Get blinded by a flashbang grenade.
Get a haircut.
Become a chauffeur for a vampire.
Complete the game with dead people.
Complete the game with live people.
Have a meaningful relationship with Max.
Make hot chocolate.
Reach 100% Corruption.
Reach 100% Humanity.
Befriend a zombie weasel.