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