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