Here is the full list of all 18 Queen's Quest 3: The End of Dawn achievements worth 1,000 gamerscore.
Finish all the Minigames without skipping them.
Defeat the Dragon Lord.
Destroy the machine powering the crystal.
Finish all the Hidden Object Puzzles without using a hint.
Find all collectables.
Finish the Ritual.
Complete a Hidden Object Puzzle in less than a minute.
Complete a Hidden Object Puzzle without mistake.
Return the Crystals from the witch.
Find 30 collectables.
Finish 3 Hidden Object Puzzles in less than 10 minutes.
Find the Dragon Crystals.
Open the library.
Complete 5 Minigames without skipping them.
Complete a Minigame in less than a minute.
Complete a Hidden Object Puzzle without a hint.
Find 3 Hidden Objects within 3 seconds.
Find one collectable.