Here is the full list of all 19 Orwell: Ignorance is Strength achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Connect two loose ends.
Cause a stir.
Complete April 15.
Dispense deliverance.
Prevent a provocation.
Complete April 14.
Find what is hidden from sight.
Draw a full triangle.
Complete April 13.
Fulfill the prophecy.
Inform yourself well.
Drain the swamp.
Retrieve with care.
Trust, but verify.
Corner someone.
Make someone go to the wrong place.
Turn one on the other.
Frame someone.
Decrease their numbers.