Here is the full list of all 12 Legends of Amberland II: The Song of Trees achievements.
Win the game (any difficulty).
Win the game on Hard or Insane difficulty.
Win the game in half a year (182 days).
Reach level 25 (any character).
Reach level 50 (any character).
Win the game without calling a griffin.
Travel 2,000 squares by sea.
Slayed a dragon (any).
Slay 1'000 monsters
Learn the Secret of the Enchanted Forest.
Find the treasure of the famous pirate Blackbeard.
Discover hiding place of a legendary hermit.