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