Here is the full list of all 24 CULTIC achievements.
The base game contains 23 achievements, and there is 1 DLC pack containing 1 achievements.
Win the rematch.
Obliterate an enemy with the soap
Clear a map without taking any damage
Spend $15,000 in the shop in a single Survival match
Kill 5 enemies with a thrown explosive barrel
Find all secrets in Chapter One.
Reject an incoming TNT delivery
Headshot an enemy from 50 meters away with the pistol
Decapitate an enemy with a hatchet from over 20 meters away
Clear Chapter One on Extreme
Defeat the Abomination
Rest on the throne.
Deflect 25 thrown hatchets
Kill a Ghost with the prop they're currently holding
Kill an enemy with an eyeball
Fully upgrade a weapon
Pop 250 enemy heads
Forget to throw the dynamite.
Rescue a teddy bear from a map.
Discover my deepest shame
Kill an enemy with a chair from over 25 meters away
Get 2 or more headshots with a single Lever Action shot
Clog a toilet with body parts