Joker Boom Plus

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  • Easy play
  • Sticky wilds
  • Boom spins
  • No free spins
  • Low RTP

Joker Boom Plus is an online slot game developed by Kajot. This retro themed fruit game has 81-win lines across a 4 X 3-reel grid. The game features sticky wilds, and boom spins and has a theoretical RTP of 95% with a low to medium variance.


Joker Boom Plus is an <b>easy play game</b> with a difference. An aesthetically pleasing layout plus an exciting boom spins feature and sticky wilds add up to a crowd-pleasing game with broad appeal.

Theme, Graphics & Soundtrack 

Joker Boom Plus is a retro game with classic fruity theming and cartoon style graphics. The symbols are wonderfully bold and bright and, though not sophisticated in any way, are just the ticket for an easy playing session. Plums, grapes, cherries, melons, lemons, and oranges mix with 7’s and wilds to form some decent wins. 

The reel set is a red square with plain blue reels and the game’s logo, underpinned by dynamite, is at the top of the reels. A shape that resembles a Lego piece appears when a win line is triggered and shows which line, or lines, won. 

For the most part there is no background music, and the playing experience is all the better for it, and there is just the smooth swish of the reels spinning. The sound effects only kick in when either a wild or star symbol lands and to celebrate a win. 

Joker Boom Plus

Joker Boom Plus RTP and Variance

The RTP on Joker Boom Plus is a <b>lower than average 95%</b>. In our opinion, Joker Boom Plus is a low to medium volatility slot game, but we always recommend trying games in demo mode, including Joker Boom Plus and other <a href="">Kajot demo slots</a>, for free before committing any actual cash. This is especially true of lower RTP games, like this one, so that a sensible stake can be decided upon. 

How to Play Joker Boom Plus

Before you start the game, take a moment to familiarise yourself with the game set-up, controls and functions with our simple guide:

  1. Choose whether to enable the sound effects and music via the speaker button at the top of the game. 
  2. Choose your stake using the bet button. Players can choose to stake between 10 and 10000 per game.
  3. Fast play is not available on Joker Boom Plus.
  4. Players can choose to auto play either 10, 50, or 100 spins. There are no other parameters to set.
  5. Enjoy the game!

Bet Sizes & Pay Table Wins

Joker Boom Plus features 9 symbols, including the wild and scatter symbols, and all wins pay from left to right. Returns shown to a 10 stake.

4 x Seven = X50

4 X Melon = X15

4 X Grape = X12.5

4 X Plum = X7.5

4 X Cherry = X6.25

4 X Lemon = X5

4 X Orange = X3.75

The wild symbol, the joker, substitutes for all other symbols including the scatter symbol, and appears on all reels. The scatter symbol, a blue star on a red background, appears on reels.

Joker Boom Plus Bonus Features

Joker Boom Plus has two bonus features.

Second Chance Respin

If the joker symbol lands and does not feature in a win line then it will hold in place for the next spin. 

Boom Spin Bonus Game 

The star symbols are needed to trigger the boom spin bonus games. Players should note that <b>Boom Spins are not free spins.</b>

3 Star symbols = 5 boom spins
4 Star symbols = 10 boom spins

The star symbol only counts once per reel, but the joker symbol can also substitute for the star symbol. During the boom spin games the whole of reels one and four turn, and remain, wild. It is <b>possible to win additional boom spins during the boom spin feature.</b>

Joker Boom Plus Review

Joker Boom Plus by Kajot Gaming manages to pack a whole lot of action into a 4 X 3 grid and slots purists and bonus hunters alike will find a lot to like with this game. The downside is the lower than average RTP though the low to medium variance allows for a reasonable playing session as players battle to the boom spins bonus round. As mentioned earlier in this review players should be aware that the boom spins are not free spins, and the stake will be deducted from the player’s balance. 

Disclaimer: Joker Boom Plus trademark / license is owned by Kajot. This site is not endorsed by Kajot.

* This button takes you to an external third-party partner real money casino website. Although we try and match games with Casinos that have them, we advise that you double-check the slot content on the casino website before making a deposit or signing up.

Slot Data
Slot Name: Joker Boom Plus
Software: Kajot
RTP: 95.00%
Paylines: 81
Reels: 4
Min Bet (all lines covered): £0.10 (GBP)
Max Bet: £100 (GBP)
Top Win: 500000
Features: Wild Symbol, Scatter Symbol, Free Spins, 4 Reels, Stacked Symbols
UK Available in GB? Game is not available in GB.


Is Joker Boom Plus a free spins game?

No, unfortunately Joker Boom Plus is not a free spins game though it has something similar to offer in the way of boom plus spins. The main, and glaring, difference is that the boom spins have to be paid for. However, they are well worth having as the first and last reels turn wild.

What other games are there with <a href=""> sticky wild symbols</a>?

Sticky wilds are a popular feature and can lead to some good wins. Players should check out 6 Wild Sharks, Sadie Swift Guns and Glyphs, Hotel Yeti Way, Cluedo Cash Mystery, El Paso Gunfight X Nudge, Genie Jackpots Megaways, and Great Rhino.

Are there any other games by Kajot Gaming?

Yes, Kajot Gaming have been producing slot games for over 25 years, so they know a thing or two about what online slots players want! Just some of their extensive suite of games include Secrets of Egypt, Super Star 81, Stone Age Kajot, Multi Diamonds, Ring of Fire XL, Karaoke King, Big Apple, Ice Bar 27, Wanted, and Joker 27 Cherry Bonus.

Are there any other online slot games with jokers?

Yes, jokers are one of the most recognisable symbols in online slot games and have been popular for many years. Some titles to look at include Joker Millions, Joker Jester, Mystery Joker, Golden Joker Dice, Joker Spin, Super Joker, and the Fire Joker slot game by Play n Go.

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    Overall score: 2.9 out of 5 stars
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