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