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