With RTP up to 99.5%, blackjack is the casino game where strategy truly makes a difference. At x666 you play with a live dealer, in Portuguese, starting at R$ 5.00 per hand. Deposit via Pix and withdraw in 15 minutes.
Free demo — no deposit required
Free demo. To play with real money, create your account at x666 and deposit via Pix.
Choose the style that suits you best
The classic, as it's always been. 6 to 8 decks, Las Vegas rules, dealer stands on 17. The ideal foundation for players looking to apply basic strategy and maximize RTP.
RTP 99.5%Real dealer streamed in HD, in Portuguese. Live chat interaction, multiple camera angles, and a land-casino feel right on your phone. Tables open 24 hours a day.
RTP 99.28%Play up to 5 hands at the same time against the same dealer. Perfect for players who want to increase their volume without losing strategic control. Each hand plays out independently.
RTP 99.4%Decisions in seconds. All players at the table act at the same time, no waiting on others. The fastest game on the platform — perfect for when you don't have much time but want to play a lot.
RTP 99.5%Private tables with higher limits — bet from R$ 500.00 to R$ 25,000.00 per hand. Dedicated dealer, exclusive camera feed, and priority service for x666 VIP players.
RTP 99.5%A variant where you play two hands and can swap the second card between them. It creates unique strategic situations — and is one of the most enjoyable options for experienced players looking to try something different.
RTP 99.1%
Check the chart and bring the house edge down to under 0.5%
How to read: rows = your hand total | columns = dealer's visible card | P = Hit | Pa = Stand | D = Double | Di = Split
| Your hand | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | A |
|---|---|---|---|---|---|---|---|---|---|---|
| 8 or less | P | P | P | P | P | P | P | P | P | P |
| 9 | P | D | D | D | D | P | P | P | P | P |
| 10 | D | D | D | D | D | D | D | D | P | P |
| 11 | D | D | D | D | D | D | D | D | D | P |
| 12 | P | P | Pa | Pa | Pa | P | P | P | P | P |
| 13–16 | Pa | Pa | Pa | Pa | Pa | P | P | P | P | P |
| 17 or more | Pa | Pa | Pa | Pa | Pa | Pa | Pa | Pa | Pa | Pa |
| Pair of Aces | Di | Di | Di | Di | Di | Di | Di | Di | Di | Di |
| Pair of 8s | Di | Di | Di | Di | Di | Di | Di | Di | Di | Di |
| Pair of 10s | Pa | Pa | Pa | Pa | Pa | Pa | Pa | Pa | Pa | Pa |
Multi-deck blackjack table. Dealer stands on hard 17. Applying basic strategy brings the house edge below 0.5%.
Real dealers, HD streaming
Understand the odds of each outcome before you sit at the table
| Event | Probability | Payment | Frequency |
|---|---|---|---|
| Natural Blackjack (21 in 2 cards) | 4,8% | 3:2 (R$ 15 per R$ 10) | |
| Player Win (no blackjack) | 42,2% | 1:1 | |
| Tie (Push) | 8,5% | Bet returned | |
| Dealer Wins | 49,1% | Lose the bet | |
| Bust (over 21) | 28,4% | Lose the bet | |
| Insurance | 30.7% (dealer BJ) | 2:1 on insurance |
Unlike slots, blackjack has a real strategy component. Players who apply basic strategy correctly bring the house edge down from ~2% to 0.5%.
You can see one of the dealer's cards. That information completely changes what you should do — and it's exactly what makes basic strategy so effective.
The double down and split options give players the chance to increase their bet in the most favorable situations — something you won't find in any other casino game.
From sign-up to your first hand in under 5 minutes
Sign up in under 2 minutes. Just enter your email and phone number — no documents required at registration.
Open your banking app (Nubank, Itaú, Bradesco, Banco do Brasil, Inter, etc.), scan the QR Code, and you're done. Funds credited in under 2 minutes.
From the main menu, click on Blackjack. Choose from the available variants or jump straight into one of the live tables — all of them work on mobile.
From R$ 5.00 per hand. Select your chips, confirm, and wait for the dealer to deal. Use the basic strategy chart as a reference.
Request your withdrawal in the members area, enter your Pix key, and receive funds in your bank account within 15 minutes — no fees, no hassle.
Terms every player needs to know
Advantages that make a real difference
The house edge in classic blackjack with basic strategy is just 0.5% — the lowest of any casino game available at x666.
Our live tables feature dealers who speak Brazilian Portuguese. You can chat and get your questions answered in real time during the game.
Play directly in your mobile browser — no app download needed. The interface is fully responsive and works seamlessly on any smartphone.
Deposit and withdraw via Pix with no fees. Credits in under 2 minutes for deposits and up to 15 minutes for withdrawals — including on weekends.
Electronic blackjack games use a random number generator audited by independent laboratories. 100% fair and verifiable results.
100% bonus up to R$ 500.00 on your first deposit. Use it to explore the blackjack tables with more balance and more playing time.
From classic to Speed, Multihand to exclusive VIP — x666 offers more blackjack variants than any other Brazilian online casino.
Any questions about rules, bonuses, or payments are handled via live chat. Our team speaks Brazilian Portuguese and is available around the clock.
If you've ever walked past a casino table — real or online — and felt curious about blackjack, trust that instinct. Of all the casino games out there, blackjack offers the lowest house edge when played with the right strategy. While a slot machine can carry a house edge of 3% to 8%, a well-played blackjack hand can get down to 0.5% or less. In practice, that means you're giving less money back to the house over time than with any other game.
At x666, blackjack holds a top spot for exactly that reason. The platform offers over 12 variants, including live tables with Portuguese-speaking dealers, electronic blackjack for players who prefer to go at their own pace, and VIP options with high limits for more experienced players. Whatever your level, there's a table waiting for you.
Blackjack "basic strategy" is simply the mathematically correct decision for every possible card combination. It was calculated by computers analyzing millions of hands, and it tells you exactly when to hit, stand, double down, or split — based on your hand total and the dealer's visible card. It's not complicated; it's a chart you can reference and memorize with a little practice.
At x666, you can pull up the basic strategy chart in a browser tab on your phone while you play — there's no rule against it in online electronic or live games. The dealer doesn't mind. So take advantage of it. If you're just starting out, playing with the chart on hand is the fastest way to build intuition for the right decisions while keeping your RTP as high as possible.
The live blackjack at x666 is a category of its own. You're playing with a real dealer, at a real table, filmed in a studio with HD cameras. The difference from electronic blackjack is noticeable: there's a social dynamic, you watch the cards being shuffled and dealt for real, and you can chat with the dealer and other players at the table.
For many Brazilian players, live blackjack is the closest thing to a real casino without leaving home. The tables at x666 have dealers who speak fluent Portuguese, making the whole experience feel much more natural — especially for newcomers who prefer to ask questions about the rules during the game.
To play blackjack at x666, you need a minimum deposit of R$ 10.00 — enough to play several hands at tables with a R$ 5.00 minimum bet. Pix deposits are processed in under 2 minutes, so you can decide on the spot and be at the table in less than 5 minutes total.
On your first deposit, the x666 offers a 100% bonus up to R$ 500.00. Keep in mind that bonuses carry a rollover requirement before you can withdraw — and blackjack bets may only contribute partially toward that requirement (check the terms in the promotions section). To play without rollover restrictions, use your own balance first whenever possible. With a R$ 200.00 initial deposit plus a R$ 200.00 bonus, you have R$ 400.00 to explore the tables and find the blackjack variant that suits your style.
Blackjack is the kind of game that can pull you in for hours — it's engaging and strategic, which can lead to sessions that run longer than you planned. A x666 recommends setting a session limit before you start: decide how much you're willing to put in and stop when you hit that limit, whether it's a win or a loss. That discipline is what separates players who play for fun from those who let the game become a problem.
In the x666 members area x666, you can set daily, weekly, or monthly deposit limits in just a few clicks. If you need a break, the temporary self-exclusion option is available without having to contact support. Our team is also available 24 hours a day via chat for any responsible gambling questions.
A x666 protects all your personal and financial data in compliance with Brazil's General Data Protection Law (LGPD). Your blackjack hand history, banking details, and account information are used solely for account operation and payment processing. No data is shared with third parties for commercial purposes.
All connections are secured with 256-bit SSL encryption. You can request access to, correction of, or deletion of your data at any time through customer support.
View full Privacy PolicyThe most common questions before you sit down at the table
Create your account at x666, deposit R$ 10.00 via Pix, and play live blackjack with a Portuguese-speaking dealer. 100% bonus up to R$ 500.00 on your first deposit.