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
Get all endings.
Become possessed for the first time.
Get Rebecca's ending.
Experience all major story events.
Beat the game without embalming all bodies.
Beat the game in under 45 minutes
Try to leave the mortuary.
Try to use the phone during the start of the game.
Enter the storage room.
Open the outside hatch.
Listen to all DJ Two-shades clips.
Throw the red vase.
Beat the game once.
Fail to banish the demon.
Complete your first body in the main game.
It does nothing...
Get right back to work.
Would immerse again.
Complete the tutorial.