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