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