Here is the full list of all 13 Syberia 2 achievements worth 1,000 gamerscore. It takes around 4-5 hours to unlock all of the achievements on Xbox 360.
Finish the game
Finish the game in difficult mode in less than 6 hours
Find all the game items
Find Syberia
Witness Oscar's sacrifice
Talk with every character
Enter the dream
Use Boris's plane
Get a Youki friend
Read what happened to Helena Romanski
Take Hans to the Patriarch
Call everyone on the phone
Get Candyroff phone number