Here is the full list of all 26 A Way To Die achievements.
kill the hearth without taking damage
kill the brain without taking damage
Win with the cancer
win with the cancer in under 45 minutes
kill the eye without taking damage
kill the intestin without taking damage
defeat the mouth without taking damage
kill the muscle without taking damage
kill the lungs without taking damage
Win with the cold
Win with the flu
Win with the covid
win with the cold in under 15 minutes
win with the flu in under 25 minutes
win with the covid in under 30 minutes
kill the nose without taking damage
Feed the parasite and get a special item
unlock the flu
unlock the covid
unlock the cancer
Enter the Brain room in less than 5 minutes
unlock the Schizophrenia
Enter the Heart room in less than 1 minute
Unlock the AVC
Finish the tutorial
unlock the cold