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