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