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