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Play Slot 21 - Bonus Feature Slot

Rating: Star Rating: 4.5 out of 5
Total paylines: 21
Winning Combos: 21
Max Jackpot: 1000 coins
Software: Win A Day
Theme: Classic Slot
Recent Slot 21 Real Money Winners:
Joong K.$2,246.5015 Apr 2018Win A Day Casino
Keneth H.$2,000.0017 Mar 2018Slotland Casino
Sandra A.$2,400.0016 May 2017Slotland Casino

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Play Slot 21 at Win A Day and get 100% match bonus on your first deposit up to $100 free plus 25%-85% on 4 others up to $400.


Slot 21 is a thrilling combination of a classic slot machine with 21 paylines and a variation of the popular BlackJack card game. Double your winnings by playing the Red&Black bonus game or collect A, K, Q and J to unlock the special 21 bonus game and play against the bank for the best hand. Spin your way to a hand of 21 or enjoy a classic slot machine at Slot 21 and gain a heap of amazing winnings!

Slot 21 consists of 3 games - the basic slot machine game, the Red&Black bonus game and the 21 bonus game. The basic slot machine is a classic fruit slot machine game with 21 paylines. If you hit the Red&Black scatter on a winning round, you can use the winnings to play the Red&Black Gamble-style game and whenever you have at least $1.00 in your 21 Cash, you can play the 21 bonus game.

To start playing the slot game you must place your wager from $0.01 to $4 per payline or up to $84 per spin.

Red&Black bonus game
This game is triggered when you hit the Red&Black scatter on the rightmost wheel. In this game you wager your total win from the last round that is displayed on the WIN display. If you wish to try to double your winnings, press the SPIN / CARD button. If you do not wish to play this game, press the COLLECT / STOP button. If the color of the highlighted card matches the color of the lit sign (red or black) you win and your wager is doubled. If the color does not match, you lose and the bonus game ends.

21 bonus game
This game is inspired by the popular BlackJack card game and is an additional opportunity to win on the Slot 21 machine. To play this bonus game you need to accumulate at least $1.00 in the 21 Cash balance. Every time you hit a special card symbol (Jack, Queen, King, Ace) on the slot machine game, the respective card symbol is highlighted in the Red&Black bonus game area. When you collect all 4 cards, a special win in the range of 2 to 200 times your total bet amount is credited to your 21 Cash balance. To start the game, press the SLOT / 21 button. Your goal is to obtain a total value of cards as close as possible to 21. First off, place your bet. To receive an additional card, press the SPIN / CARD button. When you are satisfied with the total value of the cards you received, press the STOP / COLLECT button. The bank will now receive cards and the outcome of the game will be evaluated.

If the total value of your cards is 21 or lower and is closer to 21 than the bank's card value, you win and the amount wagered is doubled. If the total value of your cards exceeds 21, the bank's cards is closer to 21 or if both the bank and you have achieved the same value, you lose your bet. Anyone who receives a BlackJack combination (an Ace card and a Face card or 10) wins. If both the player and the bank hit a BlackJack combination, the bank wins. You can continue playing the 21 bonus game as long as you have at least $1.00 in your 21 Cash balance or press "collect" to exit the bonus game.

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