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