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.
Cause a stir.
Frame someone.
Complete April 15.
Turn one on the other.
Complete April 14.
Prevent a provocation.
Draw a full triangle.
Find what is hidden from sight.
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.
Dispense deliverance.
Decrease their numbers.
Connect two loose ends.