Here is the full list of all 32 Beyond a Steel Sky achievements.
Complete the game
Destroy everything that Joey created
Confront the Council in the Citadel
Open the main gates to allow Wendell to leave with the kids
Set everyone's Qdos level to infinity
Orana can free the children
Free Foster
Got caught spying
Watch a full poetry recital
Earn a party invite
Set the Kids' Exhibit to speak 'Aggressively'
Knock Chipworth over
Read the secret message
Complete LINCspace
Enter the secret room behind the fire
Neutralise Jimmy
Obtain a waiver from Orana
Clean everything up, ready for the party
Liberate Joey from the Museum of New History
Learn the full story of Joey the Saviour
Turn the sprinklers on
Complete the Alonso interview
Examine all of Graham's conspiracy posters
Feed Voxel a stolen sandwich
Enter the main gates
Complete all tutorials
Complete the game without using any hints
Porpoisefully fail Jimmy's scary moment
Unlock Foster's classic coat
Witness both Songbird's endings
Transfer all the holo-trinkets to your brooch
Discover all five movie posters