Blackjack

The king of card games with player-friendly rules. With 99.9% RTP when using basic strategy, dealer standing on soft 17, and 3:2 blackjack payouts, this is Blackjack as it should be played.

RTP

Low

Volatility

3:2

Max Win

Min Bet

$10,000

Max Bet

How to Play Blackjack

Receive two cards, dealer gets one face up

Hit, Stand, Double Down, or Split based on your hand

Get closer to 21 than dealer without busting

Blackjack (Ace + 10-value) pays 3:2

Dealer must hit on 16, stand on 17

Provably Fair System

Each card is drawn from a cryptographically shuffled deck using provably fair technology.

Verification Steps:

1.Deck is shuffled using server and client seeds
2.Each card draw uses sequential nonce values
3.After hand completes, verify entire deck order
4.Confirm no cards were manipulated during play

Verify Your Blackjack Games

Every single Blackjack game at Duel is 100% verifiable. Don't just trust us - verify your games yourself using our transparent fairness system.

How to Verify Your Games:

1. After each game round, click on the game ID in your bet history
2. Copy the server seed, client seed, and nonce provided
3. Visit our verification page or use any third-party verifier
4. Paste your game data to confirm the outcome was truly random

Verify Your Games Learn About Fairness

How Duel Blackjack Achieves 99.9% RTP

Many players wonder how Blackjack can offer 99.9% RTP. Here's the mathematical breakdown that proves Duel offers the best odds in online gambling.

The Basic Strategy Foundation

Traditional Blackjack with perfect basic strategy runs at approximately 99.5% RTP. Basic strategy means making the mathematically optimal decision for every hand combination. Hit 16 against dealer 10, split Aces, double 11 against dealer 6 - these aren't guesses, they're mathematical certainties derived from billions of hand simulations.

Player-Friendly Rules = Higher RTP

Duel Blackjack implements every player-favorable rule: • Dealer stands on soft 17 (+0.2% RTP) • Blackjack pays 3:2, not 6:5 (+1.39% RTP) • Double after split allowed (+0.14% RTP) • Surrender available (+0.08% RTP) • Single deck penetration (+0.48% RTP) These rules combined push our base RTP to 99.7%

The Instant Rakeback Edge

Here's where Duel becomes unbeatable: instant rakeback on every hand. While other casinos make you wait weeks or achieve VIP status, Duel returns a portion of every bet immediately. This effective rakeback pushes the RTP to 99.9%, making it mathematically the best Blackjack game available online or offline.

Why Vegas Can't Compete

Las Vegas Strip Blackjack typically runs 99.3-99.5% RTP with perfect play. But they use 6-8 decks, often pay 6:5 on Blackjack, and limit doubling options. Add in travel costs, drinks, and tips, and your effective RTP drops below 98%. Duel Blackjack from your couch beats any physical casino mathematically.