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Stacking Bison Slot - Review, Free & Demo Play

If you have been craving to take a getaway to some gorgeous location but for some reason can’t do it at the moment – you can always find another way to take a little break from mundane reality. And today, we visit a wild but so beautiful prairie, in the new video slot released on 25/04/2023 – Stacking Bison!

This is a gorgeous and immersive video slot, where you can not only relish in a highly-detailed design with incredible landscapes but also enjoy some bonus features with free spins, Bison Respin Feature, and a bonus buy. So let’s see what this new release has to offer, and how and where you can play it if you would like to!

Stacking Bison Free Play

Stacking Bison logo
Swintt Release Date: 25.04.2023
Rating by Fabio Duarte
User’s Rating:
Stacking Bison
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Best Casinos to Play Stacking Bison for Real Money

Looking for some of the best casinos that not only have a licence but also a good reputation, amazing design and some bonuses? Then you are welcome to check out some of these platforms that we've selected based on their rating, credibility score, and our reviews of all these sites. Besides, these casinos not only allow you to play Stacking Bison for real money but they also have a lot of other amazing games as well!

General information about Stacking Bison slot

Release Date:
Max. win:
Bonus game:
Free spins:
Scatter Symbol:
Wild symbol:
Symbol Stacked:
Jackpot Game:
Slot lines:
Slot reels:
Stakes range (€/£/$):
0.5 to 50
Slot Theme:

How to Play

Stacking Bison is a slot with 5 reels, 3–5 rows, and 720 paylines. While such an unusual layout may be a bit bewildering to players that have little previous experience playing slots, overall this game is not at all complicated, as it only has a couple of straightforward bonus features. Besides, you also have the demo that has all these features and that can teach you how to play, and you also have us. We will guide you through the slot, and show you how you can start playing Stacking Bison!

  1. The first thing you need is to launch Stacking Bison and click the play button to enter the game
  2. Now choose the size of your stake in the dedicated section. Overall, you can bet from €0.50 to €50 per single spin in Stacking Bison. Keep in mind that with the higher wager, the game will activate the XtraWilds option, where starting from €2 bet you will get extra symbols in the Bison Collector Meter, which helps you trigger the Bison Respin Feature
  3. Now press the “i” symbol which will take you to the information menu. Here, you can read about the features of Stacking Bison, paylines, symbol value, etc. If you want even more details, you can click the sheet icon on the main screen
  4. Stacking Bison has a Buy Feature option, which you can access if you would like to purchase and start the Free Spins feature right away, without waiting for Scatters to trigger it naturally
  5. If not, then all that you now need to begin playing is to press the yellow spin button or click the “Autospin” option

Stacking Bison RTP and Volatility

Stacking Bison has high volatility and an RTP of 94%.

The Return to Player of Stacking Bison is sadly lower than average, which is one of the major downsides of this game. While most video slots nowadays have an RTP of at least 96%, in Stacking Bison it is only at 94%.

Other than that, this game has a high level of volatility. This means that while the risk of Stacking Bison will be higher and landing on a winning combo will be trickier, you will also get paid much better and larger prizes than in games with other volatility levels.



Stacking Bison, as you can probably already guess, is an animal-themed slot, that takes you to the wild and hot prairies on a thrilling adventure. Not only is this a deeply immersive slot, with a very pleasant atmosphere but Stacking Bison also has a gorgeous design. As you play the game, you will get to marvel at a beautiful and vibrant backdrop that depicts a canyon and a desert, and your gameplay will be accompanied by the great and epic background music that helps set the tone.

The symbols in Stacking Bison also have a very beautiful design, and most of them depict a certain animal. Specifically, here you will see such symbols as 9, 10, J, Q, K, and A and all of them are in the low-paying category. The high-paying symbols in Stacking Bison are animals: a hawk, a wolf, a bear, and a panther.

Not only that, but Stacking Bison also has a special symbol of Scatter aka Free Spins and a Bison. The Bison will fill the Bison Collection Meter and help you trigger the Bison Respin Feature, while the Scatter of Free Spins will allow activating the Free Spins feature.

Stacking Bison
Stacking Bison slot Paytable

Mobile Compatibility

Stacking Bison slot Mobile

Swintt creates all its games using modern, mobile-friendly technology that ensures that you can play their slots not only on a PC but on any mobile device. Thus, you will have no issues launching and playing Stacking Bison on mobile, and as long as the internet connection is stable, you will have the same smooth and seamless gameplay, with all the features you get on a desktop.

About Swintt

Although Swintt is not even 5 years old yet, this brand has already some wonderful achievements it can be proud of. The most obvious is a very rich and diverse catalogue of games, as Swintt has already made over 160 titles, such as Path of Dragons, Monster Disco XtraHold, Bloxx Flare and others. Furthermore,  Swintt has also built a reputation as a reliable provider, that holds an MGA licence and offers fair and legal services. Of course, who can forget the fact that Swintt also received several awards, its recent one being Innovation In Mobile they got in 2022.

Bonus Rounds & Free Spins

Bison Respin Feature

Stacking Bison has a special Bison Collection Meter, and once 1 or more Bison symbols land on reels, they will increase said meter by 1. When Bison Collection Meter reaches 36 collected symbols the Bison Respin Feature will start.

Here, any single or all reels will be randomly replaced with any of the high-value symbols, providing a chance to get better payouts. Besides, Bison Respin Feature offers only high-value symbols in the reels.

Free Spins

The Free Spins feature will start when you land on a certain amount of Scatters, and depending on how many Scatters you collected, you will get a certain amount of free spins. Three Scatters will activate the round and give you 5 spins, 4 Scatters give 8 spins, and 5 Scatters award you with 15 FS.

In this bonus round, only high-value symbols can appear on reels, and during every free spin, 1 or more reels will be randomly replaced with any of the high-value symbols in the entire reel.

Stacking Bison slot Free spins

Buy Feature

You can also activate the Free Spin feature with the help of the Buy Feature option. How much this option will cost you depends on the size of your current stake, and the aforementioned bonus game will be activated right after the purchase.

Stacking Bison slot Bonus buy

Stacking Bison Demo Play

Thanks to the demo version, you can play Stacking Bison for free, to learn how this slot works and/or to decide if you enjoy it. Although, unlike the casino version of Stacking Bison, this special mode doesn't pay real money, it does feature the same bonuses and overall gameplay so it would be helpful if you wish to check the game out, test it, develop a gaming strategy and more.

Max Win

The max win of Stacking Bison is 5,044x.
The grand prize that Stacking Bison can offer you is worth 5,044x your current stake, which is honestly a fine, but still a bit modest max win potential. While we certainly would love the game to have a larger top prize, overall the one you have is also decent, especially given that Stacking Bison has 720 paylines. Besides, Stacking Bison also has some nice bonus features that can assist you with the win, such as Free Spins, Bison Respin feature, or Buy Feature option.

Stacking Bison MEGA WIN

Stacking Bison Slot Review | Free Play video preview
✅ Try this slot for free on our website - https://slotsjudge.com/online-slots/stacking-bison/ Hi everyone! In this video we’ll show you bonus game in Stacking Bison from Swintt. The slot machine has average volatility and RTP of 94.0%. The playing field consists of 5 reels and 5 rows, the minimum bet starts with $0.05, and the maximum bet reaches $50. By the way, the maximum winnings are 5,044x of the bet size.The main features of the machine are Free spins, Scatter Symbol, Wild symbol, Symbol Stacked. Write in the comments, have you played Stacking Bison from Swintt and how do you like the winnings presented in this video! No links used during live stream or in the description are transaction links. 18+ | Play Responsibly | Begambleaware.org. #slots #onlinecasino #bigwin

Overall Rating


After many successful experiences in the past, we always look forward to and have no doubt in the quality of slots from Swintt and this one also did not disappoint! Stacking Bison is indeed a very gorgeous, immersive, and fun video slot, that we loved a lot and would certainly recommend to everyone. While we admit that there are some more unfortunate elements to this game like low RTP, overall the things Stacking Bison has to offer are very good: the design, gameplay, features, etc.

So if you are also unbothered by some of the cons of this video slot and/or are a fan of Swintt, then we think you’d love Stacking Bison as much as we did!

Very pretty design
Features bonus buy
You can retrigger free spins
Many available paylines
The RTP is only 94%
Modest max win

Stacking Bison Slot - FAQ

What is the price of the Buy Feature in Stacking Bison?

Overall, Stacking Bison's buy feature costs 90x your current bet.

Can I play Stacking Bison in another language?

Of course, Stacking Bison is available in 19 different languages, such as German, Japanese, Swedish, Spanish, Turkish, French, and others.

Which symbol in Stacking Bison is the most valuable?

The most valuable symbol in Stacking Bison is Bison, and not just because this symbol fills the Bison Collection Meter, but also because it has the biggest payout in the slot. Three of these symbols pay you 0.70x, 4 symbols pay 1.70x, and 5 of them – 3x.

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Fabio Duarte
Fabio Duarte
Expert in: News, Blog, Slot reviews
Fabio is a young writer with +6 years of experience in gambling & betting. Fabio creates professional reviews of casino and slots. Every single article Fabio made exhibits deep analytical skill and comprehensive coverage of a topic. It’s Fabio – one of the leading authors on slotsjudge.com.
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Overall rating

Based on 1 reviews

Gonzita_is_here own avatar
6 lvl Superstar
Winning: €81
Multiplier: x162
This is the Wild West as it is! There are really completely different laws here since everyone can try out their luck if they are brave enough. I played at €0.50 per spin and at first, thanks to the Wilds and the re-spin feature, I got up to €6. After that, I won 2 rounds with free spins. I got €4.23 in the first one, and €81 (162x) in the second. Today, I'm truly lucky!