Here is the full list of all 27 Orwell: Keeping an Eye On You achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Complete Episode Four.
Make an unlawful arrest.
Complete Episode Three.
Repay the debt.
Complete Episode Two.
Know all favorites.
Avert catastrophe.
Complete Episode One.
Show the rebellious side.
Complete Episode Five.
Show the peaceful side.
See no crime in buying a bottle.
Allow catastrophe.
Don't read minds.
Administer justice.
Forgive a crime.
Keep quiet about the intention.
Don't bother the law.
Pick up what was left behind.
Win the war.
Choose the simple answer.
Reunite a couple.
Uncover the truth.
Find out who is there.
Make Thought crimes.
End a career.
Set Thought free.