A woman glances back over her shoulder in the rain

CASE 001

THE OTHER PHONE

A Chat-Native Mystery Game of
Secrets, Betrayal & Choices

PLAY IN YOUR FAVORITE AI CHAT

Tapping a platform copies the CAIN first, then opens a new chat.

CASE THEORY — WHO'S REALLY INVOLVED?

Your private working theory. The game decides if you're right — not this page.

No evidence unlocked yet.

THE OTHER PHONE · Episode 01 ·
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How to Play
  • Tap PLAY THE GAME → COPY ENTIRE CAIN.
  • Open ChatGPT, Claude or Gemini in a new chat and paste it.
  • Play in the chat. When the story gives you a case code, unlock it in the Evidence Vault or on The Other Phone.
  • Copy evidence tokens back into your chat when the game asks.
  • At the end, import your Result Code and challenge a friend.
Discovered Endings
None yet. Import a Result Code to record an ending.
Achievements
    Accessibility
    Reset Local Progress

    Clears unlocked evidence, suspect pick, theory and imported results stored in this browser.

    Game Version
    Help

    Copy didn't work? Open the CAIN panel, tap inside the text box, select all and copy manually.

    Code rejected? Codes must be typed exactly as the game shows them (spaces and dashes don't matter).

    Progress missing? Progress is saved only in this browser on this device.