Here is the full list of all 11 Escape First 3 achievements.
Complete the Abandoned School
Complete the 2nd floor's extra puzzles
Go directly to the correct room on the 2nd floor
Complete the Keep of Lost Souls
Grab all rats in the room
Find the witch hunters' hiding place before it is revealed to you
Solve the turning tables puzzle in 5 clicks or less
Unlock the cabinet like a true barbarian
You don't care for money, you are a hunter
No one is even looking at each other
Complete the Secret Inheritance