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