Pragmatic PlayPragmatic Play

    Release the Bison

    9.1/10
    Release Invalid Date· Updated August 2026

    Release the Bison (2023). BetsRank Score: 9.1/10.

    RTP
    96.54%
    Volatility
    Very High
    Max Win
    3 000x
    Grid
    6x4
    Bonus Buy
    Yes
    Bison WildMultipliers FSAchat bonus 80x / 150x / 300x
    Release the Bison
    Play Release the Bison at BetRivieraPragmatic Play publishes no official demo · verified partner casino
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    9.1

    BetsRank Verdict

    Our read of the game, based on the data the studio publishes

    Released in 2023, Release the Bison is Pragmatic Play's Safari-themed 4,096-ways slot built around North America's wild bison herds. RTP 96.54%, max win 3 000x, very high volatility.

    Strengths

    • +20 lignes fixes to win
    • +Bison Wild
    • +Free Spins multipliers
    • +100x bonus buy

    To consider

    • −Very high volatility
    • −Minimum bet of €0.40 limits low-stakes play
    • −Bonus buy banned in the UK market

    About Release the Bison

    Released in 2023, Release the Bison is a Pragmatic Play Safari slot running on a 20-ways engine, set among North America's wild bison herds. Format 6x4 / 20 lignes fixes, RTP 96.54%, max win 3 000x, very high volatility.

    The visual setting is the American Great Plains, with galloping bison herds at dusk. Mechanics include 20 lignes fixes to win, a Bison Wild, stacking Free Spins multipliers, and a 100x bonus buy (unavailable in the UK).

    Release the Bison is widely available at online casinos that carry the Pragmatic Play catalogue. See also Buffalo King, Buffalo King Megaways, Buffalo King Untamed Megaways, and Great Rhino in the same Safari series.

    Key mechanics

    • ▸6x4 format / 20 lignes fixes
    • ▸Bison Wild
    • ▸Free Spins multipliers
    • ▸Buffalo/bison theme
    • ▸100x bonus buy
    💰 Bonus Buy: 100x stake (excluding UK markets)

    The game in pictures

    Screenshots of the actual game, not promotional art — every screen is described from what it shows.

    Release the Bison — The base game
    The base game at rest, a grid of five reels by four rows, framed by two horned posts. The bison marked WILD occupies the second cell of the middle reel and the blue BONUS diamond the foot of the fourth; the second reel is filled with wolves across its three lower cells. To the left of the frame, the BUY FREE SPINS sign sits above the “BET $2.50 — HIGHER CHANCE TO WIN FEATURE” panel with its switch on OFF. Bottom bar: CREDIT $99,996.00, BET $2.00, SPIN TO WIN!.
    Release the Bison — Game rules, page 1
    Page 1/8 of the paytable, in cash for the $2.00 bet: the wolf is the only ordinary symbol to pay from two on, at $1.00, then $4.00 for three, $6.00 for four and $20.00 for five. Then come the eagle ($8.00 for five), the hyena ($6.00) and the lynx ($4.00), then A at $3.00, K at $2.00, Q at $1.40, J at $1.20 and 10 at $1.00. The blue diamond is the BONUS, present on all reels. The bison is the WILD, substituting for everything except the BONUS and paying for itself as well: $25.00 for five, $10.00 for four, $5.00 for three and $1.00 for two — the best-paying symbol on the page.
    Release the Bison — Wild respin feature
    Page 2/8, two blocks. WILD RESPIN FEATURE: four or more WILDs in the base game open a run of respins where every WILD moves each turn, the game paying between each respin; every new WILD extends the run and raises by 1x the multiplier applied to all wins. SCATTERs landing during the run are collected, five at most, and three are enough at the end of the run to open the free spins. GUARANTEED WIN: when a base game spin pays nothing, the result can be randomly switched to a winning configuration “of minimum 10x and maximum 40x total bet”.
    Release the Bison — Free spins
    Page 3/8: three, four or five BONUS symbols open the free spins, and two BONUS symbols alone can still trigger a respin of the reels not carrying one. Before starting, a two-sided wheel draws the number of spins on one side and, on the other, a multiplier applied to every win of the round: with three BONUS symbols, 8, 10, 12, 15 or 18 spins and x1 to x5; with four, the same spin counts but a multiplier of at least x2; with five, 10 to 18 spins and a multiplier of at least x3. During the round, every WILD becomes roaming and stays on screen to the end; WILDs are also collected in a meter, and “Starting from the fifth WILD collected this way, for each new one, one more free spin is awarded and the multiplier increases by 1x”, ten WILDs at most per round.
    Release the Bison — Max win
    Page 4/8, three blocks. MAX WIN: “The maximum win amount is limited to 3,000x bet. If the total win of a round reaches 3,000x bet the round immediately ends, win is awarded and all remaining features are forfeited.” ANTE BET: the 25x bet multiplier raises the chance of landing the free spins naturally and disables the purchase, the 20x being normal play. BUY FREE SPINS: three prices, 80x total bet for three guaranteed BONUS symbols, 150x for four and 300x for five — the price quadruples going from three to five guaranteed symbols.
    Release the Bison — Medium volatility
    Page 5/8, the numbers page: the twenty paylines are drawn in the middle, numbered 1 to 20, under the line “All symbols pay from left to right on selected paylines. All wins are multiplied by bet per line.” The theoretical RTP is given as 96.54%, 96.56% with the “ANTE BET”, then 96.55% for the buy with three guaranteed BONUS symbols, 96.57% with four and 96.51% with five — the dearest option is here the least rewarding of the three. The betting range closes the screen: MINIMUM BET $0.20, MAXIMUM BET $300.00.
    Release the Bison — How to play
    Page 6/8, the interface: the CREDIT and BET labels show the balance and the current total bet, and “Click on the labels to switch between coins view and cash view” — that setting is what accounts for the cash amounts read in the paytable. The AUTOPLAY button opens the automatic play menu and a second click stops it, the three-chevron icon cycles normal speed, quick spin and turbo spin, and the + and − buttons change the bet while opening the denominations menu.
    Release the Bison — Settings menu
    Page 7/8: the SETTINGS menu holds four entries — INTRO SCREEN, AMBIENT, SOUND FX and GAME HISTORY — while the BET MENU block explains that the + and − buttons act on the BET and COIN VALUE fields, the total bet being shown in both coins and cash. The footer repeats the ceiling stated three pages earlier: “The maximum win amount is limited to 3000X bet.”, the win then being paid up to the cap and all remaining features forfeited.

    ❓FAQ Release the Bison

    What is the RTP of Release the Bison?▾

    The official RTP is 96.

    54%, in line with Pragmatic Play's Safari series.

    Is Release the Bison available online?▾

    Yes — it's available at online casinos that carry the Pragmatic Play catalogue.

    Who is Release the Bison for?▾

    Fans of Buffalo-themed slots and 20-ways mechanics who want very high volatility and a shot at 3 000x.

    What is the max win on Release the Bison?▾

    3 000x the stake, reached through the Bison Wild combined with stacking Free Spins multipliers.

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    Alexandre Dubois
    Alexandre Dubois

    Online Casino & Bonus Expert

    Last updated: 8/9/2026

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    Slot sheet last updated on · Sources: slotcatalog.com, official studio sites