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