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