Here is the full list of all 46 SKYHILL achievements.
Die 100 times
Collect all notes in the game
Complete the game on Hardcore
Upgrade your Kitchen to max level and cook something
One-shot the parasite
Fight two enemies in one combat and win
Complete the game only eating vegan food
Die in any of the first 10 floors
Die 20 times
Print the document
Win a battle with 5 or less health
Get secret ending
Upgrade your Door to max level
Upgrade your Bed to max level
Upgrade your Workbench to max level
Kill 10 enemies in the row with a mop
Turn on the TV
Dodge three hits in a row
Use Hard Times perk
Use Lucky Bastard perk
Use Mysterious Device perk
Use Retro Cinema perk
Get alternative ending
Complete the game
Explore every room in one playthrough
Fix all panels during one playthrough
Score a critical hit for 60+ damage
Craft three medium medkits
Use Deductive Method perk
Barter something with the old man
Chat with the computer
Use Amnesia perk
Craft any weapon
Check the cameras
Reach the 50th floor
Cure a poisoning
Reach level 7 with your character
Follow the legend
Read three SMS
Open card lock
Release the hangman
Die
Get food-poisoning
Fix the elevator without any items
Kill an enemy with your bare hands
Loot the dead bird