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