Free Slot 21 Slot Machine

bonus up to $4300 Play now
Switching to fullscreen mode..

Slot 21 Online Slot Review

Here is your chance to win some mind-blowing prizes through a 5-reel and 21-payline progressive online slot. Developed by WinADay, Slot21 features wild and scatter icons that help players to trigger some attractive payoffs and interesting bonus features. You can win 1000x your bet by landing five jackpot icons on an active payline with the maximum stake.

Some traditional icons including bells, fruits and a Jesters hat fill the reels. Jester’s hat plays the role of wild, while the Jacks, Kings, Queens and Aces act as the scatter icons. Read More

Related Slot Machines from WinADay

Enter the World of Fun and Entertainment

This classic-themed online slot game allows you to win plenty of rewards through its cash-rich regular icons and bonus features. Apart from the regular payoffs and the opportunity to win the progressive jackpot, the game gives you chances to trigger two interactive bonus games that can pave the way for more winning opportunities.

Red&Black Bonus Game

The Red&Black scatter icon on the rightmost reel triggers the bonus game. Here, the player wagers his entire win from the previous round and if the player wants to double the winnings, he has to press the Spin/Card button. Likewise, Collect or Stop button ends the bonus game. During this bonus game, you can see flashing Red and Black signs, and if the colour of the highlighted card matches the colour of flashing signs, it doubles your wager. You lose your winnings, and the game ends if the colour of the sings does not match.

Scatters of Slot 21 casino free game

21 Bonus Game

Bonus game can be an additional opportunity to win more cash prizes. You can proceed with the bonus game if you have accumulated at least 1.00 coin in your cash balance.  Every time you bring a special scatter icon from the set of Jack, Queen, King and Ace, the icon card highlighted in the Red&Black bonus game. If you can collect 4 cards, you get an award of cash prize valued between 2 and 200 times of your total stake.

You can start the game by pressing the Slot/21 button with at least 1.00 coin in your balance, and here your target is to collect a total value of special cards as close as possible to the number 2 1. Press the Stop/Collect button once you are satisfied with the value of your accumulated cards.


The 21-payline slot game features two interesting bonus games that can provide more winning opportunities. The gameplay of bonus feature is similar what we follow in blackjack. Here you can enjoy the chance of winning a progressive jackpot that can make your day special.

Your ratings and reviews

Add comment

At least 20 chars

Your comment has been successfully added
Thank you for helping other players

Add comment