Release the Bison

Excellent 9.3 / 10

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Release the Bison Free Demo Play

Beware the charge, the bison are set free in Pragmatic Play’s Release The Bison slot, released in April 2024! This title takes up some of the principles of an earlier game entitled Release the Kraken 2, but this time the menacing, seafaring atmosphere has been replaced by a quieter, earthly ambience. Although years have passed between the two titles, and despite a completely different environment, the key features have been preserved, albeit with a clear simplification to better meet player demand.

The Best Online Casinos & Bonuses to Play Release the Bison for Real Money

Release the Bison - Slot Review

When you launch Release The Bison, you’ll discover a wild, rural atmosphere, set in a typical North American environment of prairies, mountains and local wildlife, where bison rub shoulders with wolves, hyenas, coyotes and bald eagles. This pleasant natural setting plays host to a game grid consisting of 5 reels with 4 rows and 20 paylines, in keeping with the original title.

Although the winning potential has been lowered to a modest 3,000x the maximum stake, players will still find a highly volatile model with an RTP of 96.54%, where it will be possible to wager between $0.20 and $240 per spin. What’s more, an Ante Bet increases bets by 25% for greater chances of activating the bonus feature.

PROs & CONs of Release the Bison


  • Sticky & moving wilds
  • Guaranteed win feature
  • Re-spin feature
  • 3 bonus buy options


  • Low max. win

When playing Release the Bison slot, regular payouts come naturally to the heart of the action, with all symbols paying out as always from left to right on adjacent reels, starting with the leftmost reel. The various animal species can provide prizes of between 0.50x and 10x the stake, with a special mention for the wolf, which can pay out the equivalent of half the stake from 2 identical symbols onwards. Otherwise, we also have the A, K, Q, J and 10 symbols capable of paying between 0.15x and 1.50x the stake. If you’re wondering where the buffalo is, well, it’s the wild substitution, replacing all symbols except the bonus and appearing on all reels to pay between 0.50x and 12.50x the stake in a winning combination.

As for the game’s features, there’s no denying their similarity to those of the original. In fact, there’s pretty much everything, except for a few simplified and improved elements. So you’ll find Wild Respins, guaranteed winnings, Free Spins and a bonus purchase option.

Rlease the Bison

Wild symbols remain on the grid but move positions.

Wild Respins

In the basic game, if you have 4 or more Wilds on the grid, the game enters Respin mode. In this mode, all Wilds travel down the reels, moving into random positions after each respin, and the game pays out between each respin. Each new Wild that falls during this period grants an additional respin and a multiplier that applies to all winnings, increasing by +1x. The new Wild also becomes roaming in turn.

Each Scatter symbol that falls during the feature is collected, up to a maximum of 5, and if 3 or more have been collected by the end of the bonus, Free Spins are re-triggered. The mode ends when there are no remaining respins.

Guaranteed Win

Randomly, in the basic game, a losing spin can be automatically transformed into a winning spin capable of paying between 10x and 40x the total stake.

Release the Bison vs. 4 other slots from Pragmatic Play

Slot nameMax. winRTPMultipliersMin. bet ($)Max. bet ($)
Release the Bison3,000x96.5%Yes0.20240
Red Hot Luck5,000x96%Yes0.20240
Strawberry Cocktail16,000x96%Yes0.20240
Timber Stacks10,000x96.5%No0.20240
Guarana Eyes of the Amazon5,000x96.5%Yes0.20100

Free Spins

Find 3, 4 or 5 Bonus symbols represented by the diamond to trigger Free Spins. Randomly when only 2 bonus symbols land in the base game, a re-spin is triggered on reels containing no bonus symbols. If a third symbol appears after the re-spin, the free spins are activated.

Before the bonus is launched, a two-sided wheel appears, one side showing the number of Free Spins and the other the multiplier. The wheel spins to determine the Free Spins combination obtained.

Depending on the number of triggering bonus symbols, here are the possibilities:

  • With 3 bonus symbols, you can get between 8 and 18 Free Spins with a multiplier from x1 to x5.
  • With 4 bonus symbols, you can get between 8 and 18 Free Spins with a multiplier from x2 to x5.
  • With 5 bonus symbols, you can get between 10 and 18 Free Spins with a multiplier between x3 and x5.

During the bonus, when a Wild lands, it transforms into a roaming Wild that remains on screen until the end, moving to a random position on each spin. All new Wilds that land are also collected in a counter. And from the fifth Wild collected, all new Wilds receive a free turn with an increased multiplier. Up to 10 additional Wilds can be collected during the bonus period.

Buy Free Spins

There are three options for accessing Free Spins directly. You can activate the bonus with 3 symbols for 80x the bet, with 4 symbols for 150x the bet and with 5 symbols for 300x the bet.

Free the buffalo

Finally, the Pragmatic Play studio shows us through Release The Bison that it doesn’t just look to add new things to each of its games, but sometimes just purify, as is the case here. Release The Bison simplifies the gameplay by eliminating the superfluous, but it’s a shame to see the earning potential reduced at the same time. However, the studio still offers us a fresh setting, ideal if you enjoy playing in a natural North American environment.


Yes, Release the Bison can be played at major online casinos that feature the provider Pragmatic Play.

Yes, the slot has not one but 3 bonus buy options starting from 80x.

Of course it is! Try your luck at Release the Bison slot machine in the safety of one of our recommended casinos. We suggest you take a look at our page dedicated to trusted casinos so that you can enjoy yourself with complete peace of mind.

To play Release the Bison, you need to select your bet size, spin the reels, and match mystical symbols to win. The game offers easy-to-understand controls and user-friendly gameplay.

Software Pragmatic Play
Slot Types Video Slots
Reels 5x4
Paylines 20
Slot Game Features Bonus Buy, Free Spins, Multipliers, Re-spin Feature, Scatters, Sticky Wilds, Walking Wilds, Wild Symbol
Min. Bet 0.20
Max. Bet 240
Slot Themes Animals
Slot RTP 96.5%
devices Mobile versionTablet versionDesktop version
Release the Bison Slot by Pragmatic Play

Game Winnings and Payouts

Release the Bison Wolf Symbol

x5 = $20.00

x4 = $6.00

x3 = $4.00

x2 = $1.00

Release the Bison Eagle Symbol

x5 = $8.00

x4 = $4.00

x3 = $3.00


Release the Bison Wild Wolf Symbol

x5 = $6.00

x4 = $3.00

x3 = $2.00

Release the Bison Hyena Symbol

x5 = $4.00

x4 = $1.50

x3 = $1.00

Release the Bison Ace Symbol

x5 = $3.00

x4 = $1.20

x3 = $0.80

Release the Bison King Symbol

x5 = $2.00

x4 = $1.00

x3 = $0.60

Release the Bison Queen Symbol

x5 = $1.40

x4 = $0.80

x3 = $0.50

Release the Bison Jack Symbol

x5 = $1.20

x4 = $0.60

x3 = $0.40

Release the Bison Ten Symbol

x5 = $1.00

x4 = $0.50

x3 = $0.30


About the author

Kate Ko

Kate Ko / Games editor

last updated

Kate joined CorrectCasinos' game team in the late 2021. She's here to find and review all new and upcoming slots titles, so you can just enjoy their free play.

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