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