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