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