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