Cipher21 | House of Hidden Hands

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Table Open

ZAMA FHE PROTOCOL · SEPOLIASepolia

House of Hidden Hands

CIPHER21

Blackjack where every card stays encrypted.

Your hand sealed to your wallet. The dealer's hole card a ciphertext. Randomness drawn on-chain under FHE.

· Watch live hands →

Dealer plays17+

Blackjack pays3:2

NetworkSepolia

01Your Hand

Encrypted under FHE. Only your wallet can decrypt it — not the house, not the chain, not us.

02Hole Card

A sealed ciphertext until you stand. No peeking — literally impossible by anyone.

03The Draw

Every card from on-chain FHE randomness. No server. No trust.

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Built for the Zama Developer Program · Builder Track 2026v0.1 · Sepolia only