Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Apologies	Receive an apology from the System.
Atomic project	Solve the riddle of the great project.
Awakening	Try to understand what is going on.
Burning	Fail the trial of your old friends.
Event	Chose option no2 answering the question "Do you regret what you've done?"
Fire	Die in fire.
General	Solve the General's riddle.
Half-life	Enrage the Administrator.
Hatred	Chose option no3 answering the question "Do you regret what you've done?"
Hell	Get the ending number 3.
Limb	Go through the room of shadows and survive.
Mistake	Chose option no4 answering the question "Do you regret what you've done?"
Mystery	Learn a terrible secret about yourself.
New numbers	Solve the Fibonacci numbers' riddle.
Numbers	Solve the first riddle.
Prison	Get the ending number 2.
Professor	Find out what your name is.
Redemption	Get the ending number 1.
Salvation	Avoid the Administrator's trap.
The great scientist	Find out what your last name is.
Torture	Die by the Administrator's hand.
Weakness	Chose option no1 answering the question "Do you regret what you've done?"