Full list of all 16 The Golden Compass achievements worth 1,000 gamerscore. It takes around 12-15 hours to unlock all of the achievements on Xbox 360.
Find at least 3 Elixers of the Witch.
Collect at least 50 Alethiometer Symbol Meanings
Collect at least 80 Alethiometer Symbol Meanings
Answer all 48 Alethiometer Questions
Collect all 108 Alethiometer Symbol Meanings.
Complete the game.
Reach the North Camp
Defeat the Tranq Tank Boss
Defeat the Flame Thrower Boss
Defeat King Ragnar
Defeat the Zeppelin
Answer at least 30 Alethiometer Questions
Complete at least 25 Deception Games with "Success" rating.
Defeat the Samoyed Hunter Boss
Defeat Queen Vala
Defeat the Shaman Boss