Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
A Complex Mind (70 points)	Reach all possible conclusions in the game.
A Deadly Flower (15 points)	Finish Kew Gardens case.
A Man of Character (70 points)	Receive maximum personality ranking.
A Methodical Man (70 points)	Gather 26 Character Portraits.
An Omnivorous Reader (30 points)	Receive 3 messages from those whom you condemned or absolved.
Aye Aye, Captain! (15 points)	Finish Black Peter case.
Blood and Ice (15 points)	Finish Blood Bath case.
Bruiser (30 points)	Beat Cairns in a fight.
Child's Play! (30 points)	Finish 25 mini games and puzzles without skipping.
Dog-fancier (30 points)	Interact with Toby in every case.
Elementary! (30 points)	Finish 35 mini games and puzzles without skipping.
Guilty Brotherhood (15 points)	Finish Half Moon case
Haunted House (30 points)	Catch the thieves at Notting Hill Manor.
Hold your Herrings, Captain! (30 points)	Save Crocker from committing suicide.
I Never Fail (70 points)	Finish 10 Dialogue QTEs without a failure.
I Never Guess (70 points)	Reach 6 correct conclusions for all 6 cases.
Keen Observer (30 points)	Finish 15 "Character Observations" without skipping.
My Grey Matters (70 points)	Finish 45 mini games and puzzles without skipping.
Off the Rails! (15 points)	Finish Train case.
Perfectionist (130 points)	Collect all possible in-game achievements.
Raider of the Tombs (30 points)	Retrieve the Golden Knife from the ancient temple of Mithras.
Sharpshooter (30 points)	Disarm Mexican by shooting the gun from his hand.
Suicide is Not an Option! (30 points)	Prevent Miss White from suicide.
Their crimes, Your punishments (30 points)	Complete the game.
Vox populi, vox Dei (15 points)	Finish Abbey Grange case.