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