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