Liminal Sin Backdrop

LIMINAL SIN

An Interactive FMV Psychological Horror unlike anything you've experienced before. A Gemini Live AI that watches, listens, and responds — in real time. The line between reality and illusion disappears the instant you Enter.

Prototype available — March 16th

Once you're in, will you ever get out?

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LIMINAL SIN is a prototype built on a new kind of interactive architecture. Set in the Vegas Underground — a descent through impossible layers beneath a Las Vegas Strip casino — you become a disembodied voice woven into a living story. Three people are trapped. They can hear you. Whether they trust you is entirely up to them.

This is Mycelia Interactive's first demonstration of real-time AI-driven narrative — where voice, emotion, and trust reshape the story as it unfolds. Not a branching menu. Not a chatbot. A system that watches, listens, and responds. The potential of this technology extends far beyond what any single experience can contain.

Gameplay Sneak Peek

Origin Event - Layer 0

Somewhere beneath the Las Vegas Strip, three people are missing. Not missing like lost. Missing like they went somewhere they were not supposed to go.

They can still hear a voice. Yours. And right now, you are the only reason any of them are still alive.

Core Mechanic

The Trust System

The characters are agents, not actors. Their behavior shifts with every word you speak. Build trust through honesty. Destroy it through manipulation. Watch the house collect its debt.

Neutral

The characters are cautious but willing to listen. They withhold critical survival secrets. Every interaction is a calculation.

High Trust

Compliance. Environmental clues surface. Survival hints are shared. The characters follow your lead.

Low Trust

Unpredictable. They may disobey, hide information, or spiral into paranoia. At the floor, the house begins to collect.

System Capabilities

What Awaits You

Your Voice Is the Mechanic

No controllers. No menus. You speak - and the characters react in real time. Social engineering is the only lever you have.

The House Watches You Back

The Game Master perceives your webcam and reads your vocal cadence. Your calm can be weaponized. Your panic will be punished.

Full Motion Video - Generatively Rebuilt

Synthetic liminal Vegas spaces generated with VEO 3 and Kling 3.0. Architecture that shifts mid-scene. A door that was there a moment ago may dissolve into a wall.

Agents, Not Actors

Jason, Audrey, and Josh are autonomous AI agents with individual trust and fear metrics. They remember. They resist. They can refuse.

Slotsky - The Probability Engine

Not a monster. A force. The casino logic made sentient underground. It rearranges corridors. Removes exits. The house always wins.

The Fourth Wall Is a Lie

Tell the characters they're in a simulation. Watch a Logic Collapse event shatter reality. The FMV tears. Anomalous Intensity spikes. Consequences are permanent.

Prototype access opens below. First 30 subjects only.

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Desktop Experience: LIMINAL SIN is designed for desktop browsers. Tablet support is currently in testing. Mobile play is not yet supported.

© 2026 Mycelia Interactive. All rights reserved.
LIMINAL SIN™ is a work of interactive fiction. All characters and events are fictional.Privacy PolicyCommentsv0.1 - Early Access