Here is the full list of all 39 Sherlock Holmes Chapter One achievements.
Remember everything.
Fight in all of the bandit lairs.
Uncover all of the treasures.
Complete all Cordona Stories.
Get justice for Fabio.
Lift the curtain on bohemian life.
Take pity on a poor girl.
Follow the rules of the Blind Duelling Club.
Open the cabinet of curiosities.
Interrogate every suspect in the safe murder as a police officer.
Talk to The Pipe in the correct disguise.
Refurbish the entire manor.
Investigate the third accident.
Spare the landlady's feelings.
Talk to Dilwyn in his hat.
Find the book.
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.
Let an old man have his retirement.
Open Sherlock's room.
Solve all the cases for the police.
Arrest ten enemies.
Disorient ten enemies with the snuffbox.
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.
Disappoint Mycroft.
Present accurate evidence in all accusations.
Kill five enemies.
Kill fifteen enemies.
Get every achievement.