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