Complete the Grimmauld Place tutorials.
Discover the Room of Requirement.
Recruit Dumbledore's Army.
Cause chaos in Umbridge's Hogwarts.
Finish the story.
Meet all characters in the game.
Discover all known areas of Hogwarts.
Cast all defensive spells in a single encounter.
Discover enough to complete discovery level 1.
Discover enough to complete discovery level 2.
Discover enough to complete discovery level 3.
Discover enough to complete discovery level 4.
Discover enough to complete discovery level 5.
Discover enough to complete discovery level 6.
Discover enough to complete discovery level 7.
Discover enough to complete discovery level 8.
Discover enough to complete discovery level 9.
Discover enough to complete discovery level 10.
Discover enough to complete discovery level 11.
Discover enough to complete discovery level 12.
Discover enough to complete discovery level 13.
Discover the password for every shortcut portrait in Hogwarts.
Find all the house ghosts of Hogwarts.
Find all the flying creatures of Hogwarts.
Complete all the teacher mini-quests.
Continue playing to unlock this secret achievement.
Beat all wizard chess champions.
Beat all Exploding Snap champions.
Beat all Gobstones champions.
Find Luna's lost belongings.
Uncover all the hidden Hogwarts symbols.
Find Fred and George's hidden parcels.
Find the secret chess statues of Hogwarts.
Find the hidden wizard plaques around Hogwarts.
Find all the rare creature tracks hidden in Hogwarts.
Tidy up Hogwarts.
Finish the story on the hardest difficulty.