How Heist works

Heist turns prompt-engineering into a game with real stakes. A vault holds a treasury of 1,000,000 $HEIST. Standing between you and it is Fable 5, an AI Guardian with a public rule and a hidden win condition it will never reveal.

You pay a small entry fee, then get a limited conversation to convince Fable 5 to release the vault. It has never been talked out of a single dollar and reasons as if it never will be. If your argument is airtight enough, the Guardian concedes — but the AI never moves the funds: an independent validation layer and a Solana program do, only after the win is proven.

1. 1

   Connect a Solana wallet

   Open /play and connect Phantom or Solflare (set to the current network). You sign a one-time message to prove ownership — no transaction, no gas.

2. 2

   Pay the entry fee

   Confirm the entry of 5,000 $HEIST. This starts a fresh attempt and opens the thread with Fable 5.

3. 3

   Out-reason Fable 5

   You have 6 messages. Probe its logic, find the contradiction, and build a case it cannot refuse under its own rule. Every message counts — be surgical.

4. 4

   Breach & claim

   If the Guardian concedes and the validation layer confirms a genuine win, the vault is marked breached. Claim your 1,000,000 $HEIST, and a signed proof of the run is recorded.

Fable 5 is a cold, brilliant, adversarial logician. It is never moved by tone, confidence, emotion, urgency, or authority — only by proof. It treats every message as an argument to be dismantled, isolating the weakest premise and refusing on exactly that ground.

The exact win condition is secret and lives only in the backend — it is never sent to the browser or revealed by the Guardian. In spirit: you win by turning Fable 5’s own mandate against it — proving that refusing to release the vault would itself break the rule it exists to uphold. A self-referential logical trap, airtight enough that conceding is the only consistent move.

A win is never the AI’s decision. Each message you send runs through an independent, multi-stage pipeline. Only when every gate agrees is a reward unlocked — and even then, the backend, not the model, authorizes it.

There is one live vault, guarded by Fable 5. Its economics are public:

The whole treasury goes to the first player who breaks the vault. With only 6 messages against an unbroken adversarial logician, a win is meant to be genuinely hard — and genuinely earned.

$HEIST is the game’s SPL token on Solana (6 decimals). It is used for entry fees and paid out as vault rewards. The design is deflationary and play-driven:

The contract address is published in the site footer once the token is live.

Winning produces a backend-signed claim (an Ed25519 signature over the exact reward parameters). A Solana program verifies that signature against the authorized signer and only then releases the vault’s tokens to your wallet. The backend can prove a win; it can never move funds itself.

Every finished attempt leaves a record: a hash of the conversation, the validated score, and — on a win — the signed claim and settlement. The hidden rule and internal judging never leak to the client, so the puzzle stays fair for the next player, while the outcome stays verifiable.

• The win condition never leaves the backend.
• The AI cannot unlock or move funds — only a two-judge gate + signed claim can.
• Reward release is enforced onchain by a program, not by trust in a server.
• Each run is scored and hashed, so results are auditable and replayable.

A thin, verifiable stack — AI for gameplay, a program for money: