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