Here is the full list of all 31 The Secret Order: Return to the Buried Kingdom trophies - there are 14 bronze, 10 silver, 6 gold and 1 platinum.
Unlock every Trophy.
Finish two Hidden Object Puzzles, each one with less than 10 mistakes.
Finish all Minigames without skipping.
Finish all Hidden Object Puzzles without any Hints.
Find all Collectible items.
Find all Morphing Objects.
You hatched the egg of the new Mother Dragon.
You defeated the Dragon Rider.
You restored the sword.
You got inside the temple.
You healed Skaard.
You saved the Buried Kingdom.
You defeated the Skeleton Dragon.
You found the temple.
You revealed the dragon egg.
Finish four Minigames, each one in 60 seconds without skipping.
You freed Skaard from his box.
You removed the gem from Droi.
You entered Nezul's Tower.
You calmed the creature in Toadstool's hut.
Finish three Hidden Object Puzzles without any Hints.
You helped Dokka collect all the gems.
Finish seven Minigames without skipping.
You successfully got out of the cave.
You've opened the tomb of Nezul.
You restored the Scorpion Staff.
Finish a Hidden Object Puzzle in 90 seconds.
You calmed Droi.
You found the secret passage.
You entered the Buried Kingdom.
Finish a Minigame in 60 seconds without skipping.