There are 15 Bronze Trophies, 12 Silver Trophies, 5 Gold Trophies, and 1 Platinum Trophy.
| Unlockable: | How to unlock: |
| A Fine Romance (Silver) | The most winning woman I ever knew was hanged for poisoning. But I digress. You found the letter! |
| A Very Fine Loafer (Bronze) | There are in you the makings of a very fine loafer. |
| Anarchy in the UK (Bronze) | There are always some lunatics about. It would be a dull world without them. |
| Attention to Detail (Silver) | You have a turn for both observation and deduction! |
| Blackmailer (Bronze) | Your morals don't improve! |
| Bomb Defuser (Silver) | You never can resist a touch of the dramatic! |
| Breaking the Law (Silver) | I have a great deal of respect for your judgement. You opened the safe room! |
| Deduction Apprentice (Bronze) | To a great mind, nothing is little. You completed the first deduction board. |
| Desperately Seeking Sherlock (Bronze) | I would have made an actor ・and a rare one. You deduced my disguise. |
| Elementary (Silver) | It seems you share my love of all that is bizarre. You recovered the Samoan necklace, well done! |
| Finders Key-pers (Silver) | You handled that with less than your usual ・that is to say, you handled it well. You found the key! |
| First-Class Chemist (Bronze) | It was the bisulphate of baryta! |
| Freedom of the Press (Bronze) | The Press is a most valuable institution ・if you only know how to use it! |
| Garden Gumshoe (Bronze) | With your usual happy mixture of cunning and audacity, you recovered all that was stolen! |
| Hidden Message (Bronze) | See the value of imagination! |
| Law of Nature (Silver) | One's ideas must be as broad as Nature if they are to interpret Nature. Well done! |
| Lazarus (Gold) | An isolated phenomenon? A brain without a heart? I trust that you did not judge me so quickly! |
| Lockpicker (Bronze) | I can see that you are a force to be reckoned with. |
| Master of Deduction (Silver) | Genius is an infinite capacity for taking pains. Bravo! |
| Melomania (Silver) | You are a conductor of light! You discovered the hidden code. |
| Minesweeper (Gold) | Your nerves are fairly proof! |
| Number Lover (Silver) | With all respect for your natural acumen, you handled that very well. You opened the safe box! |
| Pea-Souper (Bronze) | Moonshine is a brighter thing than fog, but this is a pea-souper! You asked for Help a great deal. |
| Prison Break (Bronze) | A trusty comrade is always of use. Well done. And yet one got away... |
| Safecracker (Bronze) | You would make a highly efficient criminal. |
| Sherlock Holmes' will (Platinum) | Strength and perseverance to the end |
| Sleuth-Hound (Gold) | The beautiful, faithful nature of dogs! |
| Stage Manager (Silver) | A simple trick, but exceedingly effective! |
| The Brain (Gold) | I never get your limits... there are unexplored possibilities about you. |
| The Gambler (Bronze) | You have never failed to play the game! |
| The Holmesian (Silver) | I was sure that I might rely on you. You found all the items from my past adventures. |
| The Legacy (Gold) | I must compliment you exceedingly upon the zeal and the intelligence which you have shown. |
| Watson Alone (Bronze) | The one fixed point in a changing age. |
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