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