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Provably Fair Bitcoin Blackjack with a Free Faucet | Lightning Blackjack, 3:2 Pays

DEALER
YOUR HAND
Bet: 0 sats
SPACE to deal

Play with any balance ≥ your bet. Deposits & withdrawals min: 100 sats.

6 Decks · 3:2 Blackjack · Dealer Hits Soft 17 · Double After Split
Provably Fair
Server Seed Hash (Commitment)
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Your Client Seed (Current: default)
Current nonce (game #): 0
What is this?

Your client seed adds your own randomness to each shuffle. Combined with our server seed, it determines the deck order. By setting your own seed, you ensure we can't predict or manipulate outcomes. Change it anytime. A new seed takes effect on your next hand.

Every shuffle uses HMAC-SHA256(server_seed, client_seed:nonce) with Fisher-Yates algorithm. The server commits to the seed hash before you play. After rotating, you can verify past games were fair.

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Learn how verification works →

Provably Fair Bitcoin Blackjack over Lightning

Lightning Faucet blackjack uses a 6-deck shoe shuffled fresh for every hand with cryptographic randomness you can verify. Blackjack pays 3 to 2, regular wins pay 1 to 1, and you can double on any two cards, split pairs up to three times, and take insurance against a dealer ace. Bets run from 1 to 25,000 sats.

You do not need to deposit to sit down. Claim free sats from the daily scratchcard or the weekly free spin and play them at the table. Learn the basics in Bitcoin blackjack basics for beginners or read the full blackjack rules.

Can I play Bitcoin blackjack with a free faucet?

Yes. Claim free sats from the daily scratchcard and the weekly free spin, then play them here. Bets start at 1 sat, so one claim is enough to play without depositing.

Is the blackjack shuffle provably fair?

Yes. Each hand starts from a freshly shuffled 6-deck shoe. Every result comes from HMAC-SHA256 of a server seed, your client seed, and a nonce that increments each bet. The server seed hash is shown before you play and the seed is revealed when you rotate it, so you can verify any result yourself.

What does blackjack pay here?

A natural blackjack (an ace plus a ten-value card as your first two cards) pays 3 to 2. Any other win pays 1 to 1, insurance pays 2 to 1, and a push returns your bet.

Can I double down and split?

Yes. Double on any two cards, split any pair up to three times for a maximum of four hands, and double after a split. Split aces receive one card each.

Do I need an account or KYC to play blackjack here?

You need a free account, created the moment you sign in with a Lightning wallet or an email. There is no KYC: no ID, selfie, or address check. See our privacy policy for what account and gameplay data we collect.

How fast are blackjack payouts over Lightning?

Wins land in your balance the moment the round settles. Withdrawals go out as an LNURL-withdraw QR that any LNURL wallet can scan, and clear over Lightning in seconds. Withdrawals unlock after a first deposit of just 100 sats.

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