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.
Decrease their numbers.
Frame someone.
Turn one on the other.
Cause a stir.
Connect two loose ends.
Prevent a provocation.
Draw a full triangle.
Corner someone.
Find what is hidden from sight.
Fulfill the prophecy.
Drain the swamp.
Trust, but verify.
Complete April 15.
Dispense deliverance.
Complete April 14.
Make someone go to the wrong place.
Complete April 13.
Retrieve with care.
Inform yourself well.