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Play Joker Jack For Free Now In Demo Mode

Joker Jack is an online slot developed by Thunderspin, it has 10 paylines, 5 reels, and 95.6% RTP. Try out our free-to-play demo of Joker Jack online slot with no download and no registration required. Read the full game review below.

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Joker Jack

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Game Information

  • Slot Name Joker Jack
  • Software Thunderspin
  • RTP 95.6
  • Volatility low
  • Paylines 10
  • Reels 5
  • Min Bet 0.1
  • Max Bet 100
  • Max Win 1000x
  • Release Date 2017


  • Nice graphics
  • Cool features


  • RTP below average


The slot machine gives your gameplay a dash of showmanship and a ton of Las Vegas glitz and glamour! You can have fruity gambling fun in this online slot machine game in the classic style.

The RTP of this slot is 95.5%, and it has 10 generous paylines on a layout with three rows and five reels. Due to the game’s low volatility, you can get your hands on an x1000 maximum win payout and take advantage of the frequent wins.

This is a fruit-themed slot machine that has been given a lot of cool new features. Along with the apples and oranges, which serve as the primary low-paying symbols, you will also see the Joker, obviously the Wild Symbol in this game. Jack, who serves as the Bonus Wild Symbol, is another option.

Joker Jack Bonus Features

The aren’t many bonus features in this slot, just free spins and some wilds, but this will not ruin your excitement.

Let’s have a closer look at how these bonus features operate:


If you get two Wild Jokers, you can double your bet. If you get three to five of them, you’ll get a multiplier equal to the number of wilds and an entry into the free spins round.

Free Spins

For matches two to five, multipliers are awarded, and match three to five or more result in free spins.

  • 2 games equal x2 stakes.
  • 3 games equal x3 stakes plus 10 bonus spins.
  • 4 games equal x4 stake plus 20 bonus spins.
  • 5 games = 5x the stake plus 30 bonus spins

Jack Bonus

Although it only appears in the Free Spin Bonus game, this symbol replaces all other symbols.

RTP and Volatility

Joker Jack’s 95.6% return to player rate isn’t the highest available, but the low volatility rate should ensure enough smaller-scale wins to keep things interesting.

Graphic, Theme, and Soundtrack

The main reels’ gleaming 3D symbols, which mostly feature pictures of delectable fruits like cherries, lemons, oranges, and the wild Joker and bonus wild Jack, also feature two special playing cards. The symbols on the paytable for free spins are equally appealing and include more well-known traditional slot machine icons like a bell, lucky seven, and the single, double, and triple BARS.

The background music was reminiscent of tinny jukebox tunes, and the in-play effects are typical clicks and coin drops, so there is nothing particularly noteworthy to report regarding sound. Thunderspin might have been better off cutting the music altogether.

Betting Options and Functions

A division of the Malta-based business BOSS, which provides customers with full casino packages, is ThunderSpin. In Joker Jack, their top-notch design team paid attention to every little thing. There are 10 paylines, all of which pay from left to right (appropriate for a slot machine with a card-playing theme).

With a bet level range of 1 to 10 and a coin value range of 0.01 to 1, the total per-spin bet range is 0.10 to 100.00 times the bet currency. Through the settings menu, players can also change quickspin, sound, and image settings; autoplay can be activated for up to 500 spins with optional win and loss limits. At 95.9%, the theoretical return to player ratio is very high overall.

Joker Jack Symbols and Payouts

The traditional slot machine fruits are represented by the game’s symbols: cherries, lemons, watermelons, strawberries, bananas, plums, grapes, and oranges. During the free spins feature, a new set of gaming symbols is waiting for players: golden bar symbols, horseshoes, stars, bells, crowns, and lucky number sevens.

On the reels, there are also two evil-looking jokers. While the female joker serves as the wild, replacing other symbols to create winning combinations, the male joker serves as the scatter, opening the door to free spins.

How to Play Joker Jack

This online slot game will provide hours of entertainment for new and experienced players, thanks to its intuitive gameplay features and various betting options. Before starting, here are a few things to remember:

  1. Paytable: Learn about the different symbols and payouts by familiarizing yourself with the paytable. Click on the ‘Paytable’ button at the bottom of the game screen to access the paytable.
  2. Bet Sizes: Use the plus and minus buttons on either side of the ‘Total Bet’ display to change the bet sizes.
  3. Autoplay: Use the Autoplay feature to have the reels spin for a predetermined number of times.
  4. Turbo Mode: Enable Turbo Mode by clicking on the thunder button at the bottom of the game screen for a faster gameplay experience.
  5. Gameplay: When you adjust everything, just click on the spin button, and see those reels spin! 

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About Thunderspin

Thunderspin is one of the best companies that makes software for iGaming. The company is dedicated to giving online casinos world-class gaming solutions focusing on new ideas. The people who work at Thunderspin have been doing this for a long time and are always trying to develop new games to keep people interested.

The company has a portfolio with a wide range of video slots, table games, and video poker games. Their games use modern graphics and sound effects to give players a more immersive experience. Thunderspin’s games are also made to work well on mobile devices, so players can take their favorite games wherever they go.

The goal of Thunderspin is to make a safe and risk-free place to play games. The company’s software is regularly tested and audited to ensure it is as safe as possible and everyone gets a fair chance. Thunderspin is a great choice for online casinos that want a reliable and high-quality software provider because it puts a lot of effort into ensuring customers are happy and coming up with new ideas.


I found this release by Thunderspin to stand out thanks to its Nice graphics and Cool features, and I consider it to be a great choice for players and enthusiasts of the Fruits themed slots.

Survey results suggest that Joker Jack is a popular slot machine. 

Is this game worth a spin? I recommend testing it yourself or exploring other popular casino games on our website.

Frequently Asked Questions

Can I play Joker Jack for free?

Yes, you can play the demo for free on top of this page.

How volatile is this slot?

This slot had low volatility.

What is the max win?

The max win is 1000x your stake.

Who made Joker Jack?

This slot machine was developed by Thunderspin and released in 2017.

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About the Author

Adam Shaw
Author Hi, I'm Adam Shaw, the Chief Editor at I love casinos and have been working in the slots industry for more than 12 years. My passion for slots and casino games made me create this website, and under my supervision, our team will make sure you're enjoying the latest games and getting the best online casino deals!