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Cross-Examination: How We Built an AI-Powered Interrogation Game

Designing a game loop where players interrogate suspects and AI drives the responses in real time.

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Cross-Examination game icon
Cross-Examination game icon
Cross-Examination interrogation room
The interrogation room where each case unfolds

Try the game demo on UPlay

At Uplay.io, we don’t just build games — we build systems. Our newest experience is an AI-powered interrogation game where you play as a detective, extracting truth from suspects in a case that constantly shifts based on what you ask.

Traditional detective games use dialogue trees. This game generates responses dynamically based on trust, pressure, personality, and evidence — so interrogations feel less scripted and more human.

How the AI Works in the Game

Most mystery games are built on branching paths: choose A → get response B. We wanted something more alive. So instead, suspects respond in real time based on:

  • Personality (defensive, cooperative, charming, evasive, etc.)
  • Pressure (how cornered they feel)
  • Trust (how safe they feel talking to you)
  • Evidence (what you know and what you reveal)
  • Prior claims (what they already said earlier)

The system also extracts claims from responses so you can compare timelines and spot contradictions.

The Core Gameplay Loop

Detective view in Cross-Examination
1) Interview suspects with the right pressure
Suspect Alex in Cross-Examination
2) Capture claims and timeline details
Suspect Blake in Cross-Examination
3) Use evidence strategically to create leverage
Suspect Casey in Cross-Examination
4) Break contradictions and close the case

1) Interview suspects

You have limited time or limited questions. Your tone matters — push too hard and they shut down; play too soft and they control the narrative.

2) Capture claims

Every answer contains claims like “I left at 9:30,” or “I never went near the stairwell.” The game logs these so you can track what changes and what doesn’t.

3) Use evidence strategically

Evidence arrives as the case unfolds — access logs, timestamps, security details. Don’t reveal everything at once. Let suspects commit to a story before you confront them.

4) Break contradictions

Your win condition is not “ask every question.” It’s identifying the crack in the narrative — a time that doesn’t fit, an access claim that can’t be true, a story that shifts under pressure.


How to Play Like a Pro

  • Lock down time first. Timelines are the easiest place for lies to collapse.
  • Build trust early. The more they talk, the more they expose.
  • Hold evidence. Leverage is stronger after they commit to a lie.
  • Watch the tone shift. Shorter answers and defensiveness usually mean you’re close.

Ready to Solve the Case?

If you like deduction, psychology, and puzzle-solving, step into the interrogation room. The truth is there — but you have to earn it.

Play Cross-Examination on UPlay