Twenty One

Twenty One

Twenty One Slot is a classic game developed by IGT, featuring three reels and a simple gameplay. With an RTP of 94.01% and low to medium volatility, this slot offers a nostalgic experience with its cartoon-style graphics and nostalgic sound effects. The game includes fruit symbols with varying payouts. It has a wild symbol and a scatter symbol that can trigger a bonus feature. Suitable for both casual players and high-rollers, Twenty One Slot provides an entertaining gaming experience.

Play Button

About the Game

TWENTY-ONE is a game where the aim is that the sum of all your revealed cards should equal 16, 17, 18, 19, 20 or 21. First, choose the number of cards that you want to play with. Once you press BET, your cards will be revealed and added together to form your final result. Play with 7 cards to have a chance to win the max win of 1500 times your bet!


Once you press BET, the cards will be turned over. The cards are all drawn from the same standard deck of 52 cards. Once revealed, the cards will have the following values:

  • Cards with the numbers 1-10: The value is the same as the number that is written on the card
  • Jack, Queen and King: The value is 10
  • Ace: The value is either 1 or 11, depending on what is most beneficial to the player

Settings Menu

The game settings are configurable in the settings menu.

The player can choose to play with 2-7 cards. The selected number of cards changes the values of the Multipliers in the payout table.

Payout Display

A table of Multipliers are displayed in the game. These Multipliers show how much you will be awarded if the total sum of all your cards equal 16-21. The actual amount awarded will be calculated by multiplying your bet level with the awarded Multiplier.


Press BET to reveal the cards.

Return To Player

The RTP of this game is 92%. The RTP is deterministically calculated by a theoretical probability model. The RTP was verified by running 10,000,000,000 simulations.

The max win for this game is 1500 times your bet.

Ways to Win

You win when the sum of all the revealed cards equals 16, 17, 18, 19, 20 or 21!



Your current balance is shown in the BALANCE display. Balance, bets and winnings are presented in the player’s chosen currency.


Press BET to reveal the cards.

The allowed bet levels for this game are between £0.10 and £50.00.


Using Autoplay will let you play a number of game rounds automatically. Press the AUTOPLAY button and choose a number of game rounds to initiate this feature. The remaining number of spins is displayed. Autoplay is stopped by pressing the STOP button.

Advanced Autoplay Settings

The Advanced Autoplay settings allow the player to set number of plays, total session lost limit and single win limit. The autoplay feature will stop when any of the selected limits are exceeded.

Additional Information

In addition to the features described here, the bar on the bottom of the game screen displays the current balance in the chosen currency, the amount paid if a win occurs, and the amount bet on the last/current proposition.

Interrupted Game

In the event of disconnection, a previously started round that has been interrupted may be resumed immediately by starting the game again. The results of a completed round (where display of the visual result was interrupted) will only be re-displayed within the game for winning rounds, but all game rounds may be reviewed in Game History. Any amount wagered on an unfinished game will remain paused until you either complete the game or the game is void as a result of account inactivity or system maintenance.

When an unfinished game is void, your bet will be refunded to your account. Any awards earned on an unfinished round will not be credited unless you resume and complete the game. Winnings on unfinished game rounds where the player cannot further influence the outcome of the game will be automatically credited to the player’s account after 6 hours. Game rounds will never be affected by unforeseen external errors due to hardware, bandwidth, network errors or similar.

Game rounds will be either stored and completed by the player at a later time or they will be closed and the wager will be refunded to the player. If an incomplete game round has not been resumed within 14 days, the round will be rolled back and the wager will be refunded.

Game History

The result of a completed game may be viewed in Game History immediately after closing the game window. Results of unfinished games are not displayed in Game History.

General Terms and Conditions

- Misuse or malfunction voids all pays and plays.

- Any visual representation of a physical device (a reel, a wheel of fortune or similar) does not represent a “real” physical device and the probabilities of it stopping on any particular position is determined by the game’s random number generator, and not the number of positions on each device.

*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time. Game features mentioned may not be available in some jurisdictions.