Here is the full list of all 30 Syberia: The World Before achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Draw something for the bookseller in the wet cement.
Empty your email account.
Try to listen to the other guest's phone conversation.
Take all the photos you can with the telescope.
Choose a painting for Herr Gustav.
Search all possible terms you can on the computer.
Look at Dana's drawing in the cement with Kate.
Try to call a number from one of the previous games at the Academy of Music.
Find Oscar again.
Find all the photos in the Roze's home.
Find all the points of interest in the cemetery.
Fill the water bottle before leaving base camp.
Report Leni… then try to justify your actions years later.
Do not report Leni to Junta.
Find the poster of the super resistant.
Choose one of Leon's paintings and see it years later with Dana.
Find all the copies of a literary classic.
Get out of the mine.
Leave the Flower District.
Leave the Antiques District.
Leave the Silberspiegel refuge.
Leave the Flower District again.
Leave the Musicians District.
Leave Misty Bridge with Colonel Blake.
Leave the cemetery.
Retrieve Dana's letter from the automaton.
Get on board for a new destination.
Achieve your first secondary goal.
Achieve half of your secondary goals.
Achieve all your secondary goals.