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