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