Here is the full list of all 48 The Lost Art of Innkeeping achievements.
Receive a one-star rating.
Check in your first guest.
Get the maximum possible discount from the carpenter.
Receive a two-star rating.
Receive a three-star rating.
Receive a four-star rating.
Receive a five-star rating.
Design an advertisement.
Reserve a room for a guest.
Chase off the ghost.
You told Wodehouse you loved pets.
Because you said you didn't like pets, you received a very valuable item during the surprise party.
The ruins are open.
The coral cave is open.
Get the manor repaired for free.
Willing to try new foods.
Give the shopkeeper money to purchase supplies, with no strings attached.
All five rooms at the inn are occupied.
A guest stayed eight times before Day 30.
Every possible guest stayed at least once (new game+).
All four opera singers stayed at the inn on the same day.
An aquatic visitor and her pet stayed at the inn (new game+).
Play host to the royal family.
Fulfill all of the royal family's needs and receive the Royal Warrant.
Lance and Gwen met and fell in love because of you!
Receive a gift from Johan.
Receive a gift from Irene (new game+).
Achieve an average guest rating of 140 or higher with at least four rooms occupied.
Buy all upgrades for the manor from the general store and the tailor (new game+).
All buildings in the village and the fountain have been upgraded, occupied, or built.
Find all 15 Dickens books.
Return 10 lost-and-found items to guests.
Give the gold sword and gold plate found in the ruins to the national museum.
Keep the gold sword and gold plate found in the ruins for display in the manor.
Play a prank on the prankster.
Someone outsmarted you to find the buried treasure first.
Obtain the painting of the couple.
Sell paintings to Rudolph.
Solve the mystery of why Aunt Agatha had to borrow money, and discover Rudolph's deceit.
Expose Rudolph's villainy and run him out of the village.
Get Rudolph to give you the painting of roses hanging on his wall.
Talk to the art expert and keep the six paintings owned by Aunt Agatha.
Make a profit of 1,500 gold or more in a single day.
Pay off part of the loan and reach a profit-sharing agreement with the bank.
Pay off loan without selling anything found during the course of the game.
Pay off loan without raising prices beyond the 'Cheap' level.
Pay off loan in classic mode.
Pay off loan.