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