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