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