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