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Stack’em Slot Review

Stack’em is a slot game created by the game studio Hacksaw Gaming.Stack’em is a slot with a comic book and cartoon theme. This slot with a comic book and cartoon theme was released on May 25, 2021. If you are familiar with slots with a comic book and cartoon theme you might have played popular slots in this genre like Fruit Warp.

If you have already played many slots with this theme you might be thinking why you should play Stack’em slot because it might just be one of hundreds of slots in this same genre which can get kind of boring, but if you read our review you’ll get a convincing answer to why Stack’em is a special slot when it comes to slots with a comic book and cartoon theme…

Hacksaw Gaming has been creating slot games since 2017.Hacksaw Gaming is based in Malta and is renowned for for being an innovative mobile-first games studio that was founded to rethink classic products in a conservative market by using technology and design with slot players always on their minds. Hacksaw Gaming’s slots are built on a mobile-first approach, this is exactly as it sounds: designing for the smallest screen..One of the most popular slot games by Hacksaw Gaming is Frutz.

Stack’em RTP and Payout

Stack’em RTP96.20%
Number of Reels5
Stack’em min bet$0.20
Stack’em max bet$500
Layout5×6
Stack’em payout10000x
Paylinescluster pay
Stack’em volatilityvery high
Stack’em featuresCascading reels,multipliers,free spins,buy free spins
StudioHacksaw Gaming
Genrecomic book and cartoon
Release DateMay 25, 2021

One of the most important questions slot players have about any slot game is what is the RTP of a slot game they are interested in. Are you wondering what is the RTP of Stack’em? Stack’em has an RTP of 96.20%.

The next important thing that most slot players would like to know is the maximum payout of any slot game. So if you are wondering what is the maximum potential payout of Stack’em we have the answer for you. Stack’em has a maximum payout of 10000x.That’s a pretty good payout in our opinion.

You will see that Stack’em contains 5 reels which are laid out in a 5×6 style on your game screen.

Stack’em by Hacksaw Gaming has been designed to have a very high volatility.

The minimum bet amount per spin in Stack’em is $0.20. The maximum bet amount for this slot is pretty high at $500 per spin so if you are a high roller who likes to place big bets you’re gonna like this slot considering that most slots set a maximum bet amount limit of around $100.

Keep in mind though that the maximum bet amount limit might be lower in your country because of regulations set by your country’s gaming authority.

In Stack’em there are no paylines as the slot has a cluster pay system. You win on a spin when you have 5 of the same symbols landing next to each other in any direction.

Stack’em Free play and where to get FREE SPINS for Stack’em

No matter wherever you are from you can play Stack’em for absolutely free in the demo version in the casinos we have listed below. 

If you decide to play Stack’em with real money, these casinos are offering 100 free spins for Stack’em slot once you register with their casinos. Registrations can be done without depositing a single cent in the casinos below:


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Stack’em Slot Features

Stack’em has some standard features like Cascading reels,multipliers,free spins but these standard features work in unique ways in Stack’em and make it a high payout slot as you’ll find out below.

Cascading symbols with multipliers

You might have come across the cascading symbols feature in Gonzo’s Quest where it is called the Avalanche feature. On most slots with this feature, the winning symbols fall off the reels and new symbols drop down into your reels, kind of like in Tetris. 

But in Stack’em though you’ll notice that this feature works a bit differently. The winning symbols stay in their position and fall down whereas the other symbols disappear and are replaced with other symbols.

When this happens you’ll notice that underneath each reels there is a symbol with a padlock. The padlock unlocks when a winning symbol covers it. The unlocked padlock will reveal your multiplier.

If you can form more winning combinations thanks to the new cascade, the cascade will continue. If the new winning symbols fall in a locked reel the reel will unlock and reveal another multiplier.

The cascade continues until there are no more winning combinations and the multipliers in the bottom are added . This total multiplier is then applied to your total win in that spin.

This makes for some really big wins in the base game itself!

Free Spins Feature in Stack’em slot

When you get at least three free spin symbols on your reels you can trigger the free spin feature in Stack’em. You are initially awarded 5 free spins, displayed as hearts above the reels. The free spins mode continues until no more hearts remain.

Every time you hit a win in the free spins mode, the total multiplier will be increased by the number of winnings symbols.

There are some special symbols that are in play during the free spins in Stack’em.

  • The X symbol: All winning clusters that connect with this symbol will be multiplied with the factor shown above the reels
  • The ? symbol: This symbol will give you additional spins or increase your multiplier. The following outcomes are possible:

• 2-5 additional lives

• Add one of the following to the total multiplier: 1, 2, 5, 10, 25 or 50

• Multiply the total multiplier by 2, 3, 4 or 5

The cascading feature is not active during the free spins round.

Stack'Em Slot free spins round
Stack’Em Slot Free Spins Round

Buy Free Spins in Stack’em

Stack’em also features a “buy bonus” button on the bottom right corner of your game screen. This button allows you to purchase free spins for 129x times your bet amount.

Stack’em Slot Review Conclusion

Hacksaw is one of our favorite slot game studio and they have come out with another innovative slot. Although Stack’em looks like a slot with pretty standard features, the features become unique because of the way Hacksaw applies it.

Take for example how Hacksaw completely changes the way the cascading symbols feature works or the way the free spins feature works with the mystery symbols that were applied.

The theme of the slot is also pretty fresh, cool and triggers a feeling of nostalgia.

But the biggest pull factor of the slot is the potential for BIG slot wins. The multipliers keep flowing as if you are playing a Megaways slot especially in the free spins round.

If the free spins round featured more free spins and the cascading feature would still be active, we would’ve given Stack’em 5/5 but we will just deduct 0.5 points and give it an impressive 4.5 out 5 rating.

If you are looking for a high payout and fun slot go play Stack’em NOW!


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Free Trial

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125% upto €500

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125% upto €250

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125% upto €200

100 Free Spins on Starbust from €10 deposit

Loyalty Boutique!

24 Free Spins on Sign Up

125% upto €240

100 Free Spins on Starbust from €10 deposit

Achievements Gamification!

€5 on Sign Up

125% upto €200

100 Free Spins on Starbust from €10 deposit

Build your Bonus Feature!

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