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.
Find what is hidden from sight.
Corner someone.
Make someone go to the wrong place.
Trust, but verify.
Complete April 15.
Dispense deliverance.
Complete April 14.
Prevent a provocation.
Draw a full triangle.
Fulfill the prophecy.
Complete April 13.
Retrieve with care.
Inform yourself well.
Drain the swamp.