Big Bad Bison

A 67,640x maximum win sits at the top of Big Bad Bison, a 6-reel high-volatility Megaways slot from Big Time Gaming. The bison is the only symbol that pays for two-of-a-kind, and wild multipliers of up to 5x ride alongside it on every spin. With up to 117649 ways to win, a bonus buy option at 50x bet, and Win Exchange for trading base wins into free spins, there is more going on here than a standard prairie theme. The game runs on desktop and mobile at Wild.io using crypto.

What is Big Bad Bison?

Big Bad Bison is a 6-reel video slot from Big Time Gaming with a 96.59% RTP, high volatility, and a top win of 67,640x your bet. Each reel holds between 2 and 7 symbols, generating between 64 and 117649 ways to win on every spin. The standout mechanic is the Megaways engine paired with wild multipliers up to 5x and a bonus buy that guarantees 12 free spins.

Big Time Gaming built the Megaways mechanic, and Big Bad Bison is one of its more straightforward implementations: no cascading reels or complex bonus layers, just the core Megaways grid with wild multipliers and the Win Exchange to convert big base wins directly into a free-spins round. The bison symbol dominates the premium tier, paying 25x for six-of-a-kind and the only symbol with a two-of-a-kind pay, which creates small but consistent wins even when full combos do not land.

Who will enjoy this game the most?

You will probably enjoy this game if you like:

• High-volatility slot players chasing a 67,640x maximum win across a straightforward Megaways grid
• Bonus-buy fans who want guaranteed access to free spins for 50x bet without waiting on scatter luck
• Players familiar with Big Time Gaming's Megaways mechanic who want a clean prairie-wildlife theme
• Win Exchange users who prefer converting a mid-sized base win into free spins rather than banking it
• Crypto players wanting a high-RTP (96.59%) high-volatility title available at Wild.io

How To Play Big Bad Bison Slot - Step By Step

Head to Wild.io and create a free account to start playing Big Bad Bison.

1. Set your bet. The reel count is fixed at 6, but the rows change on each spin from 2 to 7, so your per-spin ways to win fluctuates between 64 and 117649.
2. Spin and watch the bison land. It is the only symbol that pays for two of a kind, so any bison appearance has value. Wild symbols land with multipliers of up to 5x attached, these multiply the winning line's value when part of a combination.
3. If a win of 25x bet or more lands, Win Exchange activates. Wins of 100x or above can be exchanged directly for 10 guaranteed free spins. Wins of 25-99x bet can be gambled for the chance to receive 10 free spins instead of banking the win.
4. To trigger free spins without Win Exchange, land 3 or more gold-coin scatter symbols anywhere on the reels. The game awards 12 free spins. Each of 5 retriggers during the round brings you closer to the maximum configuration of 7 symbols on all reels, ensuring 117649 ways to win.
5. If the bonus buy is available in your region, a 50x bet payment bypasses scatter waiting and guarantees 12 free spins immediately.

You can also deposit using various supported payment methods.

Big Bad Bison Slot Theme & Graphics

Big Bad Bison sets its reels in the American Great Plains: open grassland, mountains in the distance, and sky that shifts between warm golden and stormy blue depending on feature state. The four premium animals, deer, wolf, eagle, and bison, are illustrated in a bold stylised style with strong outlines that reads clearly at small sizes on mobile. The bison itself is the visual centrepiece, rendered larger than the other symbols with small animation effects on big wins.

Low-paying card ranks (9 through A) keep a consistent rustic color palette so they do not clash with the wildlife symbols. The audio design sits in the background: ambient prairie wind, with sharper percussion on wild-multiplier hits and a distinct sound cue when the scatter round triggers. On mobile the reel height shifts naturally with each spin as row counts change, which is the Megaways mechanic making itself visible in the layout rather than just the maths.

Big Bad Bison Slot Symbols & Paytables

Big Bad Bison uses two tiers of regular symbols plus a wild and scatter, following the standard Megaways structure. The key differentiator is the bison, its two-of-a-kind pay and distance from the rest of the premium tier make it worth understanding before you spin.

Low Value Symbols

The low-paying symbols are the six card ranks: 9, 10, J, Q, K, and A. On a 6-reel Megaways grid they appear across all reels and account for most winning combinations by volume. Individual payouts for six-of-a-kind are modest (around 0.7x-0.8x bet) but the sheer frequency of Megaways combinations means they contribute to the base-game hit rate. They are not the symbols driving the 67,640x maximum win, that ceiling comes from the premium tier and wild multipliers during free spins.

• 9
• 10
• J
• Q
• K
• A, payouts 0.7x to 0.8x bet for 6-of-a-kind

High Value Symbols

The four wildlife premiums are deer, wolf, eagle, and bison. The deer, wolf, and eagle pay between 1x and 1.5x bet for six-of-a-kind, sitting noticeably below the bison but still forming the backbone of meaningful base-game wins. The bison is the dominant symbol: it pays 25x bet for six-of-a-kind and is the only symbol with a two-of-a-kind pay, meaning any bison landing carries value. This 16:1 gap between the bison and the next-best premium makes landing bison on a high-row spin (closer to 7 symbols per reel) the primary base-game win event.

• Deer 1x to 1.5x bet for 6-of-a-kind
• Wolf 1x to 1.5x bet for 6-of-a-kind
• Eagle 1x to 1.5x bet for 6-of-a-kind
• Bison, top symbol, pays 25x for 6-of-a-kind and is the only symbol paying for 2-of-a-kind

Special Symbols

The wild symbol substitutes for all regular paying symbols and lands with multipliers of up to 5x attached. When a wild is part of a winning combination, the full line value is multiplied by the wild's modifier, so stacking multiple multiplier wilds across a single win line compounds significantly. The scatter is a gold coin bearing the Big Time Gaming logo. Three or more anywhere on the reels (across any row position in the Megaways grid) triggers 12 free spins, and additional scatters during the round retrigger for additional spins, up to 5 retriggers that can lock all reels at maximum height.

• Wild: Wild symbol with multipliers up to 5x, substitutes for all regular pay symbols; two wilds on same line multiply: 5x and 3x wild = 15x combined multiplier
• Scatter: Gold coin with BTG logo, 3+ anywhere awards 12 free spins; up to 5 retriggers lock all reels at 7 symbols for 117649 ways

Big Bad Bison Bonus Feature & Special Features

Megaways

Big Time Gaming's Megaways mechanic powers every spin in Big Bad Bison. The 6 reels each display a random number of symbols between 2 and 7 on each spin, meaning the number of ways to win changes continuously from a minimum of 64 (all reels at 2 rows) to a maximum of 117649 (all reels at 7 rows). Ways to win are calculated by multiplying the row count across all 6 reels, so a spin that lands 7 symbols on every reel simultaneously delivers the full 117649 ways. This means every spin where more rows appear creates more paths for symbol matching, a spin with 6 rows on the bison's reel alone multiplies every combination involving that reel by three compared to a 2-row landing.

Wild Multipliers

Wild symbols in Big Bad Bison carry multipliers of up to 5x. When a wild lands as part of a winning combination, its multiplier applies to the full value of that combination. Two wilds with multipliers on the same winning line multiply together rather than add, so a 5x wild and a 3x wild in the same combination produce a 15x total multiplier on that line's payout. This mechanic is most impactful during free spins when the maximum-rows configuration means more combinations are active, and wilds are more likely to appear in multiple winning lines simultaneously.

Free Spins

Landing 3 or more gold-coin scatters anywhere on the Megaways grid triggers 12 free spins. The round runs at the same bet as the trigger spin. Each scatter that appears during the bonus round retriggers additional spins, and after 5 retriggers the game locks all reels at the maximum 7-symbol height, guaranteeing 117649 ways to win for the remaining spins. This escalating structure is where the large wins accumulate: the first spins play at whatever row configuration lands, but fully retriggered spins run on the maximum grid with wild multipliers still active.

Win Exchange

Win Exchange activates whenever a base-game win of 25x bet or more lands. Wins between 25x and 99x bet can be exchanged for a gamble attempt at 10 free spins instead of collecting the cash win. Wins of 100x bet or above can be exchanged directly (no gamble) for 10 guaranteed free spins. This mechanic lets players turn a solid base win into bonus-round access without waiting on scatters, effectively creating an additional path into the free-spins feature. The decision carries real financial weight at higher bet amounts, making it one of the more player-engaging optional mechanics in Big Time Gaming's catalogue.

Bonus Buy

Players in regions where bonus buy slots are permitted can access the free-spins round directly by paying 50x their current bet. This bypasses the scatter-trigger requirement and guarantees 12 free spins on demand. The 50x cost is standard for a Megaways bonus buy and is comparable to other Big Time Gaming titles. It suits players who want to concentrate session time in the feature rather than accumulating base-game spins waiting for the scatter to land.

Pros & Cons of Big Bad Bison

Here is a quick overview of the key strengths and weaknesses of Big Bad Bison.

How to Deposit, Withdraw Winnings & Gamble Responsibly at Wild.io

Getting started with Big Bad Bison at Wild.io takes only a few steps. Follow the Wild.io deposit guide if you need the full walkthrough:

1. Create a free account at Wild.io.
2. Open your crypto wallet from the account menu.
3. Make a deposit using your preferred cryptocurrency.
4. Launch Big Bad Bison from the games library.
5. Choose demo mode or real-money play, then set your stake and spin.

Withdrawing winnings is just as fast: return to your wallet, pick your payout coin, and confirm. See Wild.io withdrawal times for typical processing speeds.

To help players stay in control, Wild.io includes several responsible gambling tools:

• Deposit limits
• Session reminders
• Self-exclusion tools
• Reality checks
• Account time-outs

Before you start playing, set a clear budget, self-assess your habits, and stick to limits that feel comfortable. Take regular breaks, avoid chasing losses, and play responsibly. Gambling should always be treated as entertainment rather than a way to make money.