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We evaluate slot machines based on multiple criteria, from which we make our final verdict.
Design and theme
85 %
Features and playability
94 %
RTP and volatility
95 %
Slot machine details and review Joker Boom
The Joker Boom slot from renowned Czech developer Kajot Games delivers a modern take on classic fruit slots with a touch of nostalgia, appealing both to fans of retro machines and to new players looking for a simple, clear, yet still entertaining gaming experience. The controls are very intuitive and you can choose your stake amount straight away. Joker Boom lets you play on a 4Γ3 grid and gives you 81 winning paylines!
Every slot machine must be developed by a company that invented, designed and put it into operation. Many players eventually find that they only enjoy playing on machines from specific software provider, so they narrow down their selection by preferred brand.
A slot with medium volatility. Wins are less frequent, but more often of higher value. The game is less stable and you can expect longer periods without winning, suitable for players who can tolerate higher risk and are more after bigger wins. More about volatility here.
Slot theme and symbols
Joker Boom stands out with a simple yet eye-pleasing visual style inspired by traditional βone-armed banditsβ. The dominant colours are dark blue and gold, creating a high-contrast, clear and elegant game interface. The symbols are easy to read, lively animated, and include classic fruit icons such as cherries, lemons, grapes, sevens and, of course, the Joker logo as the main WILD symbol. The soundtrack is subtle and unobtrusive, with a retro electronic feel that evokes the atmosphere of a land-based casino. Every win is accompanied by an energetic sound effect that adds a shot of adrenaline. Visually, it feels polished and free of unnecessary distractions. You wonβt find loads of bonus features here, but youβll definitely enjoy the ones that are included. The WILD symbol isnβt just a thematic touch β itβs also the key to forming winning combinations. It substitutes for all other symbols except the Scatter. That one brings you bonus spins! And special WILD symbols can even give you a second chance to win, so donβt waste it. Joker Boom has medium to high volatility, which means wins may not land as often as on low-volatility slots, but when they do, they tend to be more generous. This type of game is ideal for players who like to play with slightly higher risk and expect a bigger reward.
Theme and symbols Joker Boom
Red seven
Watermelon
Grapes
Plum
Orange
Lemon
Cherry
Special Symbols and Slot Features
3D
NO
Autoplay
YES
Free Spins
YES
Gamble Feature
NO
Locking Symbols
NO
Wild Symbol
YES
Win Multiplier
NO
Other features
Bonus Game
Bonus Scatter
Other Features
Progressive Jackpot
Scatter Symbol
WILD symbol
The Joker Boom online slot also comes with special WILD symbols. Their job here is to substitute for all game symbols to help you complete a winning combination.
Second Chance
Second Chance works like this: if you spin a WILD symbol but donβt land a winning combination, it will stay in place for the next spin as well. But only if you donβt change your stake.
Scatter symbol
The game features a Scatter bonus symbol! If you manage to spin this symbol anywhere on three reels, youβll get 10 bonus spins; for 4 Scatter symbols on 4 reels, youβll receive 20 bonus spins. The following special BOOM SPINS feature isnβt free β for each spin, your set total stake will be deducted from the game in which the Scatter symbols were won. If you change the total stake, you wonβt be able to play the remaining special games. However, if you return to the original stake, the awarded subsequent games will continue. During the Boom Spins special feature, all 3 symbols on the first reel turn into WILD symbols. Additional special games can be won during the special feature.
Prize table
Symbol
Multiplier
3x in payline
4x in payline
Red seven
20x
200x
Watermelon
8x
80x
Grapes
4x
40x
Plum
1x
4x
Orange
1x
4x
Lemon
1x
4x
Cherry
1x
4x
Our rating of the game
Joker Boom
Joker Boom from Kajot Games is an ideal slot for those looking to get back to the roots of fruit machines, but with a dash of modern features. Its simplicity, smooth animations and the potential for decent wins make it a great choice not only for beginners, but also for more experienced players who want to enjoy a relaxing game without complicated mechanics.
95%
Editor's rating
Design and theme
93 %
93 %
Features and playability
93 %
93 %
RTP and volatility
96 %
96 %
How do we rate slot machines?
We evaluate slot machines based on multiple criteria, from which we make our final verdict.
The slot is ideal for beginners and for those who prefer a classic game without complicated mechanics
Classic symbols (fruit, sevens, joker), but in a visually refreshed modern style
The Joker substitutes for all other symbols and increases the chance of winning combinations
Scatter symbols trigger the BOOM SPINS feature
Medium to high volatility suits players who prefer bigger wins over frequent smaller ones
81 winning paylines offer plenty of opportunities to land winning combinations
The animations are snappy, the reels spin with pace, and the game feels dynamic
The slot offers the chance to hit extremely high wins thanks to the jackpot
A low minimum stake is suitable for casual or cautious players β you can play with small bets
Cons
No interactive bonus games, wheels of fortune or pick-and-click mini-games
May feel outdated to fans of modern video slots
Lacks 3D effects, a story-driven backdrop or thematic depth
Unlike some other Kajot slots, there are no win multipliers here
Manufacturer Kajot
The Kajot brand is one of the most famous names in the gambling world. It has certainly earned the attention of its fans deservedly with all that it has successfully accomplished in this industry. It is a company from the Czech Republic, Czech players know its slots from online casinos and brick-and-mortar gambling halls.
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95%
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Software provider
Game typeSlot
Reels
Winning paylines81 paylines
