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