Here is the full list of all 23 Nancy Drew: Midnight in Salem achievements.
Find the (literal) Easter Egg.
Find a strange key.
Repair the shredded letter in Parry House.
Complete the tour.
Carve a dozen pumpkins.
Nancy's beliefs are challenged.
Make way too many Johnny Cakes.
Read every piece of evidence.
Gather alibis from everyone for every crime.
Help Lauren in her shop.
Decipher the coded note.
Have your tea time interrupted.
Complete the CCTV timeline.
Discover the plot behind the hauntings.
Open a secret passage.
Solve the circle riddle.
Flee the ghostly terrors.
Lauren and Teegan share the Hathorne Estate.
The Hathorne House estate goes to Lauren.
The Hathorne House estate goes to the descendants of the accused.
Finish Midnight in Salem.
Correctly answer the trivia question at the end of the game.
Solve all master puzzles.