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