Joker Boom

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Rules and Gameplay

The Joker Boom slot series from Kajot offers a straightforward gameplay structure that appeals to fans of classic fruit slots. Both Joker Boom and Joker Boom Plus feature a 4×3 reel layout with 81 betways, providing more opportunities for winning combinations than typical fruit slots. Players can adjust their bets using two sliders, accommodating both low and high rollers, with betting options ranging from $0.10 to $100 per game round.

Bonus Features

The Joker Boom series includes several intriguing bonus features that enhance gameplay. Notably, the Boom Spins feature, which, while not free, offers increased winning chances by filling reels with wilds.

  • Joker Bonus Game: Triggered by landing 3 or 4 Star symbols, awarding 10 to 20 Boom Spins.
  • Boom Spins: These spins come with a significant twist—players must pay for each spin, but the first reel is always filled with wilds, boosting the potential for big wins.
  • Second Chance Modifier: If Joker Wilds are not used in a win on their initial appearance, they stick for another spin, offering another chance at a win.


The Joker Boom slots use a mix of traditional and special symbols to keep the gameplay exciting and rewarding.

  • Standard Symbols: Includes fruits like plums, cherries, lemons, and oranges. Higher value symbols are melons, grapes, and sevens.
  • Joker Wilds: Substitute for all pay symbols to form winning combinations.
  • Star Symbols: Trigger the Boom Spins bonus feature.


The payout structure of the Joker Boom games is designed to reward combinations of three to four matching symbols on adjacent reels from left to right. Below is a table summarizing the payouts for four-of-a-kind wins.

Symbol Payout (coins)
Sevens 2,000
Melons 800
Grapes 400
Plums, Cherries, Lemons, Oranges 40


Both Joker Boom and Joker Boom Plus utilize an 81 payline system, providing numerous opportunities for players to win. This large number of betways is unusual for a classic style fruit slot and significantly increases the frequency of payouts.

Pros & Cons

Pros Cons
Nostalgic feel with classic fruit slot gameplay Basic, almost rudimentary graphics
Boom Spins feature increases win potential Boom Spins require payment, not truly free spins
Available to play on mobile and desktop platforms Low RTP at 95%, below industry standard

Minimum and Maximum Bet

The Joker Boom series accommodates a wide range of betting preferences, allowing players to place bets as low as $0.10 per spin up to a maximum of $100 per game round. This flexible betting range makes the game accessible to both casual players and high rollers, ensuring that everyone can enjoy the game at a level that suits their budget.

Game Jackpot

The Joker Boom slots do not offer a progressive jackpot, but they do provide a fixed maximum win. For Joker Boom, the maximum win is 500 times the stake, while Joker Boom Plus offers up to 960 times the stake. Both games have a Return to Player (RTP) of 95%, which is slightly below the industry average, and feature a medium-high variance, meaning players can expect moderately frequent large payouts interspersed with periods of smaller wins.

About Provider

Kajot, the provider behind Joker Boom, specializes in the development of casino games, particularly slot machines. They are known for creating games with a classic aesthetic, focusing on straightforward gameplay mechanics without the complex features found in more modern slots. This approach makes Kajot’s games especially appealing to those who enjoy nostalgic gaming experiences reminiscent of traditional land-based casinos.

How To Play

  • Step 1: Load the game on your chosen device.
  • Step 2: Adjust your bet using the betting sliders to set your desired stake per spin.
  • Step 3: Press the spin button to start the game. The reels will spin and then come to a stop.
  • Step 4: Winning combinations are assessed. If matching symbols land on one of the 81 betways from left to right, you will receive a payout based on the paytable.
  • Step 5: Look out for special symbols like Joker Wilds and Star symbols. Joker Wilds can substitute for other symbols to form winning combinations, and Star symbols can trigger the Boom Spins.
  • Step 6: If you trigger Boom Spins, follow the on-screen instructions to use these spins, keeping in mind that they are not free and will cost your set bet amount per spin.


The Joker Boom series by Kajot stands out for its classic fruit slot appeal and simplicity, making it a great choice for players who prefer straightforward gameplay without too many complexities. While the graphics and RTP may not meet the high standards set by more modern slots, the unique Boom Spins feature and the potential for high payouts offer enough excitement for anyone looking to experience a taste of old-school slot action. However, players should be aware that the Boom Spins, despite increasing win potential, do require payment, which could be a drawback for those used to free spin features.