Blackjack simulator

Provably fair cards, dealer stands on all 17s, blackjack pays 3:2. Play money only — practise your hitting, standing and doubling decisions before risking anything real.

Play money balance

10,000

Hands

Wins

Streak

LUCKINDEX

Dealer

50 credits

Place your bet and deal a hand.

Bet amount10,000 credits

Provably fair

Verify a hand

SHA-256(serverSeed): …

Client seed:

Nonce: 0

Every card comes from HMAC-SHA256(serverSeed, "clientSeed:nonce:cursor"). Rotate to reveal the old server seed, then replay any hand in the verifier.

Basic strategy cheat sheet

• Always split aces and eights; never split tens or fives.
• Stand on hard 17+; hit hard 8 or less no matter what the dealer shows.
• Hard 12–16: stand against dealer 2–6, hit against 7 through ace.
• Double hard 11 against everything, and 10 against dealer 2–9.
• Soft 17 or less: always hit or double, never stand.
• Never take insurance — it carries a much bigger house edge than the main bet.

Played perfectly, blackjack sits near a 0.5% house edge — one of the best games on any casino floor. Compare that with the maths in our game strategy guides.

Ready for real tables?

Rainbet runs live and RNG blackjack with instant crypto withdrawals and Up to 20% instant rakeback on every hand. Sign up with code LUCKINDEX.

Claim the LUCKINDEX bonus

Or read the full Rainbet review and casino rankings.

18+ only. This simulator uses play money and has no cash value. Gamble responsibly.