What is 21?
21 is a card-based game where the goal is to get a total as close to 21 as possible without going over. You can choose to play with 2, 3, 4, 5, 6, or 7 cards. The more cards you choose, the more cards will be dealt to form your final total. This is an instant card game, similar to a Blackjack side bet. Choose how many cards you want to draw, place your bet, and let the cards determine your final total. selected card count.
The game uses a finite 52-card deck, meaning cards do not repeat within the same round. Twenty One has a fixed 99% RTP, is provably fair, and offers a maximum win of 1,600x your stake.
How do I play?
Before placing your bet, choose how many cards you want to use:
2 cards
3 cards
4 cards
5 cards
6 cards
7 cards
Once you place your bet, the selected number of cards will be revealed and their values will be added together.
How do I win?
Your final card total must be between 16 and 21 to win. If your total is 15 or below, the bet does not qualify as a winning result. If your total goes over 21, you lose as well.
For a 7-card selection, the multipliers are:
16 - 38.72x
17 - 400.00x
18 - 600.00x
19 - 800.00x
20 - 1,000.00x
21 - 1,600.00x
Note: The multiplier for each winning total depends on the number of cards you choose to reveal. The multipliers shown above are an example for 7 cards. Each card-count option (2–7 cards) has its own multiplier table.
A sample of a winning bet where 7 cards were chosen and the combined total of the cards are 20. Hitting 20 has a multiplier of 1000x.
What happens if I hit exactly 21?
21 is the highest possible winning total and pays the highest multiplier available for the selected number of cards. The multiplier for each winning total is displayed on the game interface.
Does choosing more cards increase my chance of winning?
Choosing more cards changes the possible combinations and the corresponding multipliers. Each option, from 2 cards through 7 cards, has its own multiplier table.
The game does not require you to stop or make additional decisions after placing your bet. The selected number of cards determines how many cards are revealed.
What happens if my total is over 21?
You bust. A total above 21 is a losing result, regardless of how close it is to 21.
For example:
7 + 8 + A + 5 + A + Q + J = 42
Since the final total is over 21, the bet loses.
What card values are used?
Cards are valued according to their standard card values:
2–10 = their face value
J, Q, K = 10
A = 1 or 11, depending on which value keeps the hand from exceeding 21
Can an Ace count as 1 instead of 11?
Yes. An Ace can be counted as 1 or 11, depending on the hand.
For example, if counting an Ace as 11 would cause the total to exceed 21, it can be counted as 1 instead.
Does the multiplier include my original bet?
Yes. The multiplier represents your total payout, including your original stake.
For example, a $10 bet at 3.50x pays $35 total, which includes your original $10 bet.
What are the winning totals?
The winning range is:
16, 17, 18, 19, 20, or 21.
Anything above 21 is considered a bust, while totals below 16 do not qualify as a win.
Where can I see the multiplier?
The available multipliers are displayed directly in the game interface.
The multiplier depends on both:
Your final total
The number of cards selected
Each card-count option from 2–7 cards has its own paytable.
For example, the screenshot shows different multipliers for totals from 16 to 21.
These are the multipliers set when a player choose only 2 cards.
These are the multipliers set when a player chooses 3 cards.
A sample of a 21 hit when choosing 6 numbers.
Play now and experience the future of cryptocurrency gambling.
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