Here is the full list of all 39 Sherlock Holmes Chapter One achievements.
Get every achievement.
Remember everything.
Refurbish the entire manor.
Fight in all of the bandit lairs.
Uncover all of the treasures.
Complete all Cordona Stories.
Investigate the third accident.
Acquire Sherlock's famous violin.
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.
Find the book.
Hold an eel by the tail.
Disorient ten enemies with the snuffbox.
Arrest twenty-five enemies.
Disappoint Mycroft.
Let an old man have his retirement.
Solve all the cases for the police.
Interrogate every suspect in the safe murder as a police officer.
Arrest ten enemies.
Kill fifteen enemies.
Talk to The Pipe in the correct disguise.
Get justice for Fabio.
Lift the curtain on bohemian life.
Open the cabinet of curiosities.
Refuse to help Mycroft.
Always advocate for the refugees.
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.
Kill five enemies.
Prank Mrs. Nini.
Open Sherlock's room.
Solve the first case on Cordona.
Eavesdrop on your first piece of gossip.
Try to take the easy way out.