Here is the full list of all 14 18 Floors achievements.
Use the mirror, and return to the past
Follow the sequence of the light, and unlock all boxes on the 1st Floor
Acquire the King's Scepter
Eat 5 escargots and witness a hallucination
Use the hammer to break open Door 2
Worship the photo of the female ghost
Pick up the pistil of all the flowers.
Blow all the color flutes.
Make the images on the parchment alive.
Find a picture of the ghost bride.
Smash all the plates in the cupboard.
Play the phonograph to show a woman's outline.
Listen to all the songs on all radio channels.
Type the typewriter up to 100 times.