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.
Refurbish the entire manor.
Fight in all of the bandit lairs.
Investigate the third accident.
Complete all Cordona Stories.
Uncover all of the treasures.
Let an old man have his retirement.
Solve all the cases for the police.
Talk to Dilwyn in his hat.
Find the book.
Hold an eel by the tail.
Take pity on a poor girl.
Present accurate evidence in all accusations.
Follow the rules of the Blind Duelling Club.
Kill fifteen enemies.
Interrogate every suspect in the safe murder as a police officer.
Talk to The Pipe in the correct disguise.
Kill five enemies.
Arrest twenty-five enemies.
Disorient ten enemies with the snuffbox.
Disappoint Mycroft.
Acquire Sherlock's famous violin.
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.
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.