Full list of all 25 The Mortuary Assistant achievements. It takes around 25-30 hours to unlock all of the achievements in the base game on Windows.
The base game contains 21 achievements, and there are 2 DLC packs containing 4 achievements.
Burn 50 bodies in the retort.
Embalm 100 bodies
Try to leave the mortuary.
Experience all major story events.
Get all endings.
Get Rebecca's ending.
Listen to all DJ Two-shades clips.
Beat the game without embalming all bodies.
Beat the game once.
Beat the game in under 45 minutes
Become possessed for the first time.
Fail to banish the demon.
Complete your first body in the main game.
Enter the storage room.
Open the outside hatch.
Get right back to work.
Try to use the phone during the start of the game.
It does nothing...
Throw the red vase.
Would immerse again.
Complete the tutorial.