Here is the full list of all 39 Sherlock Holmes Chapter One achievements.
Get every achievement.
Prank Mrs. Nini.
Remember everything.
Get justice for Fabio.
Lift the curtain on bohemian life.
Investigate the third accident.
Refurbish the entire manor.
Take pity on a poor girl.
Present accurate evidence in all accusations.
Follow the rules of the Blind Duelling Club.
Interrogate every suspect in the safe murder as a police officer.
Talk to The Pipe in the correct disguise.
Open the cabinet of curiosities.
Always advocate for the refugees.
Punch first, ask questions later.
Spare the landlady's feelings.
Complete all Cordona Stories.
Disappoint Mycroft.
Refuse to help Mycroft.
Find the book.
Hold an eel by the tail.
Talk to Dilwyn in his hat.
Open Violet's room.
Save Goliath's life.
Fight in all of the bandit lairs.
Kill five enemies.
Kill fifteen enemies.
Let an old man have his retirement.
Find all the books in the Bazookaeology trilogy.
Disorient ten enemies with the snuffbox.
Arrest twenty-five enemies.
Acquire Sherlock's famous violin.
Uncover all of the treasures.
Arrest ten enemies.
Solve all the cases for the police.
Open Sherlock's room.
Solve the first case on Cordona.
Eavesdrop on your first piece of gossip.
Try to take the easy way out.