Full list of all 53 King's Quest achievements worth 1,800 gamerscore. It takes around 4-5 hours to unlock all of the achievements in the base game on Xbox 360.
The base game contains 17 achievements worth 1,000 Gamerscore, and there are 4 DLC packs containing 36 achievements worth 800 Gamerscore.
This is a hidden achievement.
Present Entrance Ticket at the Tournament.
Complete the Duel of Strength.
Complete the Duel of Speed.
Complete Chapter 1.
Complete three acts of Charity.
Clear your head.
Get all gold coins in Chapter 2.
Get all pages in Chapter 2.
Escape the goblin prison.
Escape without any townspeople taken away.
Care for the Caring.
Complete Chapter 2.
Love at first height.
Win a game of Moral Quarrel.
Discover 3 portraits of younger townspeople.
Give the perfect present to Neese.
Give the perfect present to Vee.
Complete Chapter 3.
Hold your own in staring contest.
Win the road trip game.
Solve first Ice Palace puzzle.
Solve the Ice Labyrinth.
Shoot an arrow at Ice Guard.
Complete Chapter 4.
Seek treasure as an aged adventurer.
Mind the music.
Escape the Tournament Theater.
Prove your mind is still quick.
Prove your mind is still strong.
Defeat all puzzles on The Floating Island.