Here is the full list of all 23 Haydee achievements.
Find the SMG.
Find the Magnum.
Find the tutorial section ammo.
Die in the same room 3 times in a row.
Find your death in Haydee.
Complete the game with the default pistol only.
Kill all the bots you encountered.
Become the new Master.
Complete the game with no damage received.
Complete the game without saving.
Complete the game in one hour.
Complete the game on Softcore.
Complete the game on Hardcore.
Complete the tutorial section.
Fail the escape.
Complete the game with 80% headshots.
Complete the game killing no more than 50 bots.
Find the Pliers.
Find the Crowbar.
Break the system.
Find the secret room.
Find the useless card.
Create havoc.