- Amazing graphics and animations throughout
- Generous rewards across icons and bonus options
- A lovely makeover of a familiar themed slot
- Music and sound effects could be improved
- Setting up the stake could be confusing
Contents
Introduction
Plenty of designers churn out ‘updated’ versions of the classic fruit machine slots, but few manage to achieve the high standard of Joker Jack, a great example of Thunderspin demo slots. It has a classy, retro-style, but is modern where it needs to be, which is great news when it comes to rewards. Players won’t be disappointed by the bonus opportunities such as free spin and multipliers served up here.
Graphics & Soundtrack
All the graphics featured in Joker Jack are an attractive blend of the modern and traditional. It’s like Thunderspin took the essential ingredients of the classic fruit machine and gave them a glitzy makeover. Take the reels themselves, which are cleverly designed to look like a one armed bandit, complete with the lever which is set up so it moves with each spin.
The shiny 3D symbols you see on the main reels are mostly images of luscious fruits, such as lemons, oranges and cherries, along with two special cards - the wild Joker and the bonus wild Jack. The icons on the free spins paytable are equally appealing, and these include more familiar classic slot symbols like a bell, lucky seven, and the solo, double and triple BARS.
Sound-wise there’s nothing special to report, as the background music reminded us of tinny juke box tunes, and the in-play effects are pretty standard clicks and coin drops. It may have been wiser for Thunderspin to just leave the music out altogether.

Joker Jack RTP & Volatility
The return to player rate of 95.6% offered by Joker Jack isn’t the most generous around, but the low volatility rate should mean there’s a decent number of smaller scale wins to keep things interesting.
How to Play Joker Jack
Joker Jack isn’t a very complicated slot but setting up the wager for each spin could be a bit baffling for novices. This brief guide will be handy for those who need a bit of guidance on this, or on any aspect of customising the controls.
1. The main control panel sits just underneath the reels. The BET button displays the total number of coins staked per spin - keep an eye on this to avoid wagering more than you planned!
2. The BET LEVEL can be set from 1 - 10, and adjusted using the plus and minus arrows besides it, or go straight for MAX BET (100 coins per spin).
3. The VALUE button can be customised from the starting point of 0.01, to the top level of 1.0.
4. To check out the paytable data, bonus information and paylines you need to click on the lower case i situated just underneath the reels.
5. Click on the AUTO button if hands free play appeals. You can choose from the following options - 10, 25, 50, 100, 250, or 500.
6. When you are happy with everything go ahead and press spin, and have fun!
Bet Sizes & Paytable Wins
The minimum bet size is 10 coins (bet value of 0.01 & bet level 1); while the maximum bet possible is 100 coins (coin value 1.0 & bet level 10).
Paytable Data
As well as the main slot paytable there is a second version which comes into play during the free spin games. In both of these all symbols pay out for 3, 4, or 5 matches on a line.
Regular payouts (for 5 matches)
- Cherries x1,000
- Grapes x400
- Oranges x200
- Strawberries x100
- Plums x50
- Watermelons x35
- Bananas x25
- Lemons x10
Free spins paytable (for 5)
- Golden sevens x2,400
- Crowns x640
- Stars x256
- Bells x112
- Horseshoes x64
- 3 BARS x48
- 2 BARS x32
- Single BARS x24
Joker Jack Bonus Features
There aren’t any flashy extra options in this slot, just two wilds and some free spins, but this doesn’t affect the fun factor.
Wild (Joker)
Land 2 Wild Jokers to double up your stake, while 3 - 5 matches brings a multiplier matching the number of wilds, plus entry into the free spins game.
Bonus Wild (Jack)
This symbol subs all others, but only appears in the Free Spin Bonus game.
Free Spins Bonus
There are multiplier rewards for 2 - 5 matches, plus free spins for those landing 3, 4, or 5.
Reward data
2 matches = x2 stake
3 matches = x3 stake + 10 free spins
4 matches = x4 stake + 20 free spins
5 matches = x5 stake + 30 free spins
Our Verdict
Joker Jack is a great find, a slot which appeals to players of all ages and experience levels. The symbols are a joy to look at, and the clever animations on wins add that little extra something that is bound to make you smile.
If you enjoyed this kind of theme why not take advantage of other free slot demos, and try games like Fire Joker online slot. It offers all kinds of extra twists to boost your chances of winning, including multipliers, stacked symbols, and wild spins.
Disclaimer: Joker Jack trademark / license is owned by Thunderspin. This site is not endorsed by Thunderspin.
| Slot Name: | Joker Jack |
|---|---|
| Software: | Thunderspin |
| RTP: | 95.60% |
| Volatility: | Low volatility |
| Paylines: | 10 |
| Reels: | 5 |
| Min Bet (all lines covered): | £0.10 (GBP) |
| Max Bet: | £100 (GBP) |
| Top Win: | 1000 |
| Features: | Wild Symbol, Scatter Symbol, Free Spins, 5 Reels, Low volatility |
| Themes: | Jewels |
| Last Update: | 03/10/2020 |
|
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No. :maker does not have a UKGC license and cannot offer their games at UK licensed casinos. |
FAQs
What is the RTP of Joker Jack?
The RTP is 95.6%.
How volatile is Joker Jack?
This is a low volatility slot.
What is the biggest win available on Joker Jack?
In the base game the top win is x1,000 the wager, which could increase with bonuses.
Does Joker Jack have a free spins bonus round?
Yes, it is triggered by 3+ joker wilds, and offers between 10-30 free spins.
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