Here is the full list of all 39 9 Clues 2: The Ward achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Be a hero and save lives.
Gather full information about all the characters.
Gather all nine Clues in your Journal.
Watch all the cutscenes in the game without using Skip.
Create your puppet.
Finish five Hidden Object Puzzles in under two minutes each.
Find a way to call for help.
Solve all Detective Mode scenes.
Finish half of all the games of Mahjong.
Learn about Kreuz's secret.
Make your way out.
Gather five Clues in your Journal.
Find three fragments of the Asylum Model.
Finish Zed's masterpiece.
Finish three Hidden Object Puzzles without using a Hint.
Finish three games of Mahjong without using Shuffle.
Visit the closed ward.
Fix the sprinklers.
Solve five Puzzles in under two minutes each.
Gather three Clues in your Journal.
Regain a clear mind.
Fight your fears.
Find a way out.
Solve three Puzzles without using Skip.
Disarm all booby traps.
Finish one Hidden Object Puzzle without using a Hint.
Find three Phantom Objects.
Finish a game of Mahjong.
View three cut scenes without using Skip.
Solve your first Detective Mode scene.
Solve a Puzzle without using Skip.
Finish all Hidden Object Puzzles without using a Hint.
Solve all Puzzles without using Skip.
Find three Hidden Clue Symbols.
Find all nine Hidden Clue Symbols.
Complete the Asylum Model.
Find all fifteen Phantom Objects hidden across the game.
Finish the game without using a Hint.
Finish all games of Mahjong.