Here is the full list of all 20 Agonize achievements.
Defeat Mary inside the mansion
Enter Charles hidden lair
You’ve spotted Mary inside the house for the first time
Pickup your first Syringe inside the house
Locate your first serum
Process your first serum.
Inject Mary for the first time
Setup your first trap to stop Mary
Unlock the door to Floor 2
Unlock the door to Floor 3
Unlock the door to Floor 4
Have Mary reach agro level 3
Have Mary reach agro level 2
Find one of Charles notes left inside the house
Have Mary walk into the bear trap
Have Mary trip over the rope trap
Zap Mary with the Tesla trap
Wait who locked the front door?
Revive one of your teammates
Revive yourself with one of the medical syringes