Here is the full list of all 10 The Looker achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Complete the environmental puzzle.
Score 600 or higher in a certain challenge.
You have learned the ways of the SNéK.
Ahh! Scary noise! No!
Solve the wire puzzle.
Healed and ready to execute some puzzles.
Why did you do that?
Find all audio recordings.
Solved all pages of the Great Book.
Solve a puzzle in real life.