Here is the full list of all 25 Sherlock Holmes: Crimes & Punishments achievements worth 1,000 gamerscore.
Collect all possible in-game achievements.
Reach all possible conclusions in the game.
Receive maximum personality ranking.
Beat Cairns in a fight.
Reach 6 correct conclusions for all 6 cases.
Finish Half Moon case
Complete the game.
Catch the thieves at Notting Hill Manor.
Gather 26 Character Portraits.
Interact with Toby in every case.
Finish Kew Gardens case.
Prevent Miss White from suicide.
Finish Abbey Grange case.
Save Crocker from committing suicide.
Finish 45 mini games and puzzles without skipping.
Receive 3 messages from those whom you condemned or absolved.
Finish Blood Bath Case
Retrieve the Golden Knife from the ancient temple of Mithras.
Finish 35 mini games and puzzles without skipping.
Finish 15 "Character Observations" without skipping.
Finish 25 mini games and puzzles without skipping.
Finish Train Case
Disarm Mexican by shooting the gun from his hand.
Finish 10 Dialogue QTEs without a failure.
Finish Black Peter Case