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