Here is the full list of all 32 The Count Lucanor achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Guess the kobold's name without using the letters.
Discover the truth in the throne hall.
Kill the old woman and Eisbein.
Use the snake ring at the best place.
Get the fire room letter without using the bucket of water.
Get the treasure hunter badge from Giulia.
Find the hidden treasure of the Count.
Catch the butterfly in the depths.
Open the garden chest.
Feed the worm from the depths.
Guess the kobold's name using the letters.
Catch Eisbein.
Find J.F.'s most important note.
Enter the fire room from a secondary door.
Find the castle's wall at day.
Find the chest hidden near your house.
Find some stale bread before night falls.