| Achievement | How to unlock
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|---|
| Ace of Spades (30 points) | Let the cards fall where they may.
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| Agent 221B (30 points) | Become a shadow unseen.
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| At Gunpoint (30 points) | Become prey, to trick the hunter.
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| Back Against the Wall (30 points) | Experience a hearty welcome.
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| Breathe Easy (15 points) | Breathe life into one in need.
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| Disaster Strikes (70 points) | Finish The Case of the Chain Reaction.
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| Domesticity (30 points) | Solve Mary Sutherland's Case.
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| Domino Effect (30 points) | Reconstruct a deadly chain of events.
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| Exorcism 2.5 (30 points) | Banish devilry.
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| Hermit's Lair (15 points) | Locate the hideout.
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| It's All in the Stars (30 points) | Let the stars lead you out of danger.
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| Lawn Bowls Champion (15 points) | Win a tournament of local interest.
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| Life of a Consulting Detective (130 points) | Collect all possible in-game achievements.
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| Lock, Stock, and Two Smoking Detectives (70 points) | Finish Infamy Case.
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| Madame Destiny (70 points) | Finish Fever Dreams Case.
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| Mechanical Art (30 points) | Find a way inside a secret room.
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| On the Trail (15 points) | Don't let the suspicious man out of your sight.
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| Phantasmagorical Journey (30 points) | Escape the perils of your imagination.
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| Pump It Up (30 points) | Find a way to control the water.
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| Tavern Tangle (15 points) | Come to fisticuffs, but for good reason.
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| The Drawn Curtain (70 points) | Complete the game.
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| The Golem Awakened (70 points) | Finish A Study in Green Case.
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| The Greatest Test of All (30 points) | Have the last dance with "Madame Destiny".
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| The Hunter Becomes the Prey (70 points) | Finish Prey Tell Case.
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| Unwanted Attention (15 points) | Deal with a gift from a secret admirer.
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