An innovative deduction game, especially appealing to female players. You can outwit AI-controlled characters, win their trust and affection, deceive or threaten them, gather evidence, and uncover the one and only truth! Each character talks in real time, with generated voice and expressions.
Release Date:
Q4 2025
Developer:
Publisher:
Gameplay | Sherlock Holmes: Night Stalker
Gameplay | Sherlock Holmes video
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Download Sherlock Holmes: Night Stalker - Demo

This game is not yet available on Steam

Planned Release Date: Q4 2025

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About This Game

<Steam Next Fest>

The game’s demo is now available for free download to all players. You can visit the demo’s Steam page and click Play Now to start playing right away. This demo offers about 1.5 hours of gameplay, featuring main story missions, dialogues, voice acting, the Heartlock system, Affinity system, Deduction system, Item system, and Evidence Presentation mechanics. The game contains no combat elements, making it ideal for players who enjoy a slow-paced experience focused on story, exploration, puzzle-solving, and free-form dialogue. The demo is available in English and Simplified Chinese only. The full version will support multiple languages and include 20+ hours of total gameplay.

If you’re interested, please add the game to your wishlist — you’ll receive notifications about major updates and future events.

(Special Note: Only the dialogue text and voice lines are generated in real time by an AI model. All programming and art assets are entirely handcrafted. Our goal in integrating AI was to enhance NPC intelligence—making their behavior and responses feel more lifelike—and to create a new kind of immersive experience that blends narrative and deduction, rather than using AI as a tool to develop the game itself.)

<Game Introduction>

“When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth.”                           

——Sherlock Holmes

    This detective game features core gameplay powered by the latest AI model, delivering a brand-new immersive interactive experience. As Sherlock Holmes, you will engage in battles of wits with dozens of AI-driven characters, uncover clues, and solve intricate puzzles. Every clue must be obtained by you—the renowned master detective—through conversations, interrogations, emotional persuasion, exploration, and deduction.

    Whether major or minor, every character has a complete backstory, personality, experiences, and relationships, and will respond to your questions with real-time emotional expressions and reactions. The unprecedented immersion will make you feel as if you have been transported back to 19th-century Victorian London, where you—and only you—can alter the course of the story as the great detective Sherlock Holmes.

    (Note: All art assets in this game are not created using AI. Only text, voice, and logic systems are generated in real time by AI.)

<Storyline>

    On the mist-shrouded outskirts of 19th-century London lies the mysterious Baskerville Manor. The corpse of Sir Charles Baskerville is discovered in a nearby marsh—eyes wide open, hand clutching his chest, his face frozen in terror. There are no visible wounds, but the ground bears the tracks of a monstrous hound.

    “It must be—the Baskerville curse! That demonic hound has returned!”

    “Am I doomed to this fate too? No… I don’t want to die—Ahhhhh!”

    Shadows loom within the manor, while danger festers beyond its walls. A suffocating fear grips everyone like the hand of a demon on their throats. Soon after Holmes arrives at Baskerville Manor at the request of his friend Maud, a series of new murders erupt—mutilated bodies in the marsh, the corpse of a woman in a neighboring estate’s fountain… Are these seemingly unrelated crimes connected? What hidden truth lies behind the Baskerville curse? As the investigation unfolds, the truth begins to surface, until—

    “Sherlock, you once said that every brick of Baskerville Manor whispers… Yet some secrets drown even beneath the roar of the Thames.”

    “Then we’ll need sharper ears—like a certain doctor who insists on carving Christmas pudding with a scalpel.”

<Features>

====== Free Chat! Immersive Detective Simulation ======

No dialogue choices, no rigid scripts—you can freely chat with NPCs: negotiate, interrogate, coax, compliment, threaten, or tempt… anything you can think of! NPCs are no longer just lines of code—they are “alive,” infused with AI-driven personalities. Witness their reactions in real time: a suspect feigning calm under interrogation, hastily covering up lies when caught, gossiping about neighbors’ secrets, or shifting blame onto others… AI brings every character to life. You’ll never know if they’ll help you solve the case—or stab you in the back!

====== Unlock Secrets, Reveal Inner Truths ======

Everyone has secrets they guard closely. Find a way to pry them open, and you move closer to the truth! Each “locked heart” represents a key clue. Gather critical clues and connect them to generate new, vital insights. In the end, armed with crucial evidence and your unmatched conversational skills, confront the killer and crack the case!

====== Hundreds of Items, Use as Evidence or Gifts ======

Show your evidence to leave the culprit speechless, exposing every lie! The world is filled with hundreds of items—you can use them as proof or gifts. Give a scalpel to a doctor? He’ll praise you as a kindred spirit. Gift the same to a lady? You might get slapped and scolded, “Are you cursing me?!” AI reacts to each character in real time—blushing, angry, smirking, or even drawing a gun. Flirt or provoke, it’s all about your survival instincts!

====== AI Twists! Unlock Multiple Hidden Endings ======

“Think catching the killer is the end? AI is secretly laughing at your naivety!”
Accuse someone of being the murderer? Tomorrow’s headline might read: “Holmes Disgraced! Frame-Up Scandal Revealed.” Hide a key piece of evidence? Ten years later, a mysterious smile from the “late” baron might flash across the street… AI shapes the story based on your words, completed tasks, collected clues, and items, leading to multiple, unpredictable endings.
—Shh… did you hear the dogs barking in the swamp?

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Only the in-game real-time dialogue text and voice are generated by AI. All code and art assets are entirely handcrafted by the development team. The AI model has been fine-tuned with multiple safety measures — including prompt restrictions, keyword filtering, and compliance safeguards — to ensure all generated content remains appropriate.

If you encounter any inappropriate or non-compliant content during gameplay, please report it to our support team at cs@gamercury.com, and we will promptly review and make the necessary adjustments.

Thank you for your understanding!

System Requirements

Windows
macOS
    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: windows 10 or newer
    • Processor: Intel Core i5-8700k/AMD Ryzen 5 3600
    • Memory: 16 GB RAM
    • Graphics: NVIDIA GeForce GTX 1650/AMD Radeon RX 570
    • DirectX: Version 12
    • Network: Broadband Internet connection
    • Storage: 7 GB available space
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: windows 10 or newer
    • Processor: Intel Core i7-10700k/AMD Ryzen 7 5700X3D
    • Memory: 32 GB RAM
    • Graphics: NVIDIA GeForce RTX 3060/AMD Radeon RX 5700XT
    • DirectX: Version 12
    • Network: Broadband Internet connection
    • Storage: 7 GB available space
    Minimum:
    • OS: Mac OS
    • Memory: 16 GB RAM
    • Storage: 13 GB available space
    Recommended:
    • OS: Mac OS
    • Memory: 32 GB RAM
    • Storage: 13 GB available space
* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.
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