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