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