Joker Stacks slot review

Featuring the classic slot machine symbols on a unique reel layout, the new Joker Stacks slot by iSoftBet can offer massive wins thanks to its rewarding free spins feature and sticky joker wilds. In this review, we’ll explain why this slot and its cheerful jester have kept us hooked to the screen for so long, and we’ll also reveal which online casinos are already offering Joker Stacks to play for fun or for real money as from this January 2018.  


£ 50 bonus on first deposit and 25 free spins on first deposit. New customers only. Min £10 deposit. Max £50 bonus. Min £25 deposit for free spins on Starburst only. 40x wagering requirement within 5 days applies to bonus. 15x wagering requirement on free spins within 5 days.

Joker Stacks slot features

Joker Stacks is a five-reel online slot with a 3-4-3-4-3 setup that pays from left to right. Lower-paying symbols on the reels include vibrant cherries, melons and lemons. There’s a higher paying horseshoe symbol that pays out up to 80x your stake, as well as a bell that pays up to 100x the stake. Finally, the reels also feature blue and red 7s, that lead to wins of 125x and 150x the stake respectively if you manage to land on 5 in a line.

Joker Stacks slot also includes a wild symbol, in the guise of the smiling jester, which substitutes for all symbols apart from the scatter, which is the Bonus gold star symbol. Randomly on any spin during the base game, this jester can turn reels 1, 3 or 5 into stacked reels for the following spin, thus activating the Sticky Stacked Wild Jokers feature that highly improves your chances of securing a big win!

Play Joker Stacks today!

Joker Stacks slot free spins feature

Landing on the bonus symbol on reels 1, 3 or 5 will activate this slot’s ultra rewarding free spins feature. Initially, players get 15 free spins, and during this round any joker that emerges is collected and powers up the joker meter at the bottom. If you manage to collect 6 of these jesters, the first reel will turn into a stacked joker wild for the rest of the free spins round, and another 2 free spins are added to the feature. The good news is, that we’ve found that it’s very likely to collect 6 jokers during 15 free spins, so it’s not that difficult to extend this feature!

If you collect another 10 jesters, the third reel will also turn wild, and another 2 spins are awarded. Players may collect up to 26 wilds to power up the meter completely; this will also transform the fifth reel into a sticky stacked Wild and award one extra spin. All together, this is likely to result in mega wins, and we must say that this free spins feature is the best we’ve come across so far this year!

Joker Stacks free spins feature

Joker Stacks slot bonus

We feel that Joker Stacks could easily gain in popularity, and this would mean that many online casinos might be running promotions on this slot. If you’re new to online slots, make sure you sign up with one of the brands we've listed below in order to get a good welcome package, as well as additional free spins and access to regular promotions that might involve Joker Stacks.

Where to play Joker Stacks slot


£ 50 bonus on first deposit and 25 free spins on first deposit. New customers only. Min £10 deposit. Max £50 bonus. Min £25 deposit for free spins on Starburst only. 40x wagering requirement within 5 days applies to bonus. 15x wagering requirement on free spins within 5 days.

£ 300 bonus on first deposit 50 bonus spins. 18+ New Players only. Min. £10 deposit. 20 no deposit spins on sign up and 100% up to £300 + 30 bonus spins on first deposit. £5 min. bet to activate deposit spins with 3-day expiry from claiming. 35x wagering requirement on bonus and free spins winnings. £5 max. bet using bonus. Skrill, Neteller deposits excluded. Eligibility restrictions apply.

£ 200 bonus on first deposit 11 welcome spins.
10 GBP extra cash
New customers only. Min. £10 deposit. £10 extra cash on first deposit. 20x wagering requirement on bonus. Bonus paid in 10% increments. Bonus must be activated within 7 days.

Joker Stacks slot min/max bet, RTP, volatility and maximum payout

Players can now play Joker Stacks by staking a minimum of £0.15 up to a maximum of £15 per spin. The slot has a good RTP of 96.60% and can be classified as one of medium volatility. Joker Stacks can pay out 150x the stake for a single spin if you manage to land on 5 red 7s, and we found that lower payouts on this slot are fairly frequent.

Joker Stacks graphics and sound

The reels in Joker Stacks are set against a glitzy purple background, and feature glossy symbols which have been beautifully designed. The soundtrack creates an upbeat mood, and is accompanied by other sound effects that remind you of old style slot machines. There’s certainly nothing to find fault with when it comes to both the design and soundtrack of Joker Stacks, and players who like spinning those traditional slot machine symbols will love the overall presentation and the cheerful mood conveyed by the smiling Joker.

Joker Stacks slot – our conclusion

Joker Stacks slot does a good job of combining classic slot machine elements with more modern features which help make this slot potentially very rewarding. We loved its free spin feature, especially when we saw that joker meter powering up so fast! The only downside might be that you cannot stake large amounts on this slot, but at the same time this helps cut back your losses. The hit frequency is great, which makes the slot fun and engaging, and certainly worth trying out this 2018. Give it a few spins yourself with a reliable online casino and make sure you take advantage of a good welcome bonus to enhance the experience!

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