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