Complete the following tasks to unlock PlayStation 3 trophy rewards.

Trophy	How to unlock
A space odyssey (Bronze)	Get the zeppelin off the ground with Boris' help.
All quiet on the Eastern front (Bronze)	Arrive at the space station.
Gossip (Silver)	Talk with every character.
Graduate (Bronze)	Solve all the Barrockstadt University's problems.
Legacy of Kate (Bronze)	Familiarize yourself with the Voralberg will.
Memory of the Amerzone (Bronze)	Find an Amerzone speaking book.
Music Box (Bronze)	Listen to all the cylinders in the train.
Old School (Gold)	Finish the game in difficult mode in less than 6 hours.
On the way to Syberia (Silver)	Finish the game.
Snoop (Silver)	Find all the game items.
The great escape (Bronze)	Return to Aralbald and escape from the thief.
The origin (Bronze)	Talk to Helena.
Welcome to Valadilene (Bronze)	Finish preparing for your arrival in Valadilene.