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