Detective Sherlock Shadow Stalker key art with Sherlock Holmes and the main cast inside a Victorian manor
AI DETECTIVE MYSTERY GAME

Detective Sherlock: Shadow Stalker

When you gaze into the truth, the truth gazes back.

A first-person AI detective mystery game powered by large AI models. Become Sherlock Holmes, enter a Victorian town in Dartmoor, and outwit dozens of lifelike AI characters as you uncover the truth behind curses, lies, and murder.

Detective Sherlock Shadow Stalker trailer cover
Wishlist on Steam

No dialogue trees. No standard answers. Only psychological deduction.

There are no fixed dialogue choices. You can freely talk to every character: chat, interrogate, test, deceive, comfort, threaten, bribe, flatter, or deliberately mislead them.

Each NPC has a personality, secrets, memory, emotions, and a personal stance. They remember what you said, change their trust based on your attitude, and may reveal cracks under pressure: slips of the tongue, lies, counter-questions, contradictions, or even a complete breakdown.

A note from the development team

Only the dialogue text and voice are generated in real time by large AI models. All art assets are handcrafted by the development team. AI is used to make NPCs more intelligent and humanlike, creating an immersive experience that blends narrative, deduction, memory, emotion, trust, secrets, and psychological pressure.

The Baskerville curse returns to the fog-shrouded moor

In the outskirts of 19th-century London, the mysterious Baskerville Manor is swallowed by fog. Sir Charles Baskerville is found dead near the moor, eyes wide open, right hand clutched to his chest, with no obvious external wounds. Around the scene are traces of a large hound-like creature.

The legend of the devil hound once again haunts the manor. The new heir Sir Henry is terrified. The butler refuses to speak. The doctor is evasive. The inspector is eager to close the case. Everyone seems to know something, and everyone seems to be hiding something.

Invited by his friend Dr. Mortimer, Sherlock Holmes arrives at Baskerville Manor, only for new murders to follow: a mutilated body discovered in the moor, a woman found dead in the fountain of the neighboring estate, and more cases that appear unrelated. Are these deaths connected? What truth lies behind the Baskerville family curse?

Some fear the truth. Some exploit the legend. Some hide secrets. Some watch from the shadows. Once the impossible has been eliminated, whatever remains, however absurd, must be the truth.

Game Features

Free-form dialogue, psychological interrogation, evidence presentation, mental locks, and multiple hidden endings — every sentence can bend the story toward a different truth.

AI Crack the Code. Link Up, Brainstorm, Breakthrough Episode

AI Crack the Code

NPCs are no longer lines of scripted code. They are lifelike characters shaped by AI: staying calm during interrogation, desperately explaining away contradictions, spreading gossip, shifting blame, or turning the tables when you push too hard.

  • No fixed dialogue options
  • Speak or type freely to interrogate NPCs
  • Characters respond through personality, memory, emotion, and trust
Battle Wits with AI. Hit the Core, Break the Mental Lock

Break Mental Locks

Everyone protects a secret. Some fear exposure. Some want to protect family. Some do not trust you. Some would rather lie than tell the truth. Use conversation, evidence, gifts, items, and emotional pressure to break their psychological defenses.

  • Every mental lock may hide a key clue
  • Trust, evidence, and emotion affect NPC behavior
  • A true detective makes people say what they meant to hide
Free Chat. Talk Whatever You Want To Talk

Free Chat, Real Interrogation

You are not clicking options to move the plot forward. You are playing psychological chess with NPCs that feel alive. Find clues, expose lies, and open the secrets buried in their hearts.

  • Question, mislead, comfort, threaten, or flatter anyone
  • NPCs may lie, counter-question, panic, or break down
  • Your tone and choices can change later events
Clues Point the Way. There is Only One Truth

Evidence, Items, and Gifts

Show your evidence and leave the culprit with nowhere to hide. Hundreds of objects can be found in the world. Present them as proof or give them as gifts — the choice is yours.

  • Evidence can become a weapon of accusation
  • Gifts trigger real-time emotional responses
  • The same item may cause very different reactions from different characters
AI Master the Twist. Secrets Unfold, Endings Unfold

AI Twists and Multiple Hidden Endings

Think catching the culprit is the end? The real mastermind may still be laughing in the dark. The AI can bend the story based on your words, completed tasks, collected clues, and discovered items. Did you hear the hound howling deep in the moor?

  • Insufficient evidence may ruin Holmes’s reputation
  • Hiding a key clue may change the future
  • Multiple hidden endings await discovery

FAQ

Is this an AI-generated game?

No. Only the dialogue text and voice are generated in real time by large AI models. All art assets are handcrafted by the development team. AI is used to make NPCs more intelligent, believable, and humanlike.

What makes it different from traditional detective games?

Traditional detective games usually rely on fixed dialogue choices. Detective Sherlock: Shadow Stalker lets you freely type or speak to NPCs, interrogate them, mislead them, comfort them, threaten them, flatter them, or pressure them into revealing the truth.

Do NPCs remember what I say?

Yes. Each NPC has a personality, secrets, memory, emotions, and personal stance. They may change their trust, lie, panic, contradict themselves, or break down under pressure.

Who is this game for?

It is designed for players who enjoy Sherlock Holmes, mystery deduction, first-person narrative adventures, psychological interrogation, interactive fiction, AI NPCs, and multiple endings.

What is the main objective?

You become Sherlock Holmes and investigate the truth behind the Baskerville curse, the devil hound legend, suspicious deaths, hidden motives, and interconnected crimes across the manor and the moor.

AI detective game, AI NPC game, Sherlock Holmes game, mystery deduction game, first-person detective game, free-form dialogue game, psychological interrogation, multiple endings narrative adventure