Big Bad Bison

Big Bad Bison Slot Review — Big Time Gaming

Big Bad Bison is a Megaways slot from Big Time Gaming, released on 20 June 2023. Its reel set generates up to 117,649 ways to win per spin, and the top payout is fixed at 67,640 times the stake. The game pairs that ways-to-win engine with multiplier wilds, a changing reel set and a buffalo-herd prairie theme that ties the mechanics to the visuals.

Core Gameplay Experience

Big Bad Bison’s reel set runs on six reels, and the Reelset Changing feature varies the number of symbol positions per reel on every spin, which is what pushes the ways-to-win total up to 117,649. Stakes run from 0.1 to 20.0 per spin, a fairly wide span for a high-volatility Megaways title, so the betting range itself does not force players into one bankroll size.

Visually, Big Bad Bison sets its reels against an open prairie landscape built around a herd of bison, alongside wolves and eagles drawn from the same wildlife setting; it sits within the wider Animals & Nature themed slots group on that basis. The palette leans on browns and earth tones taken from the animal cast rather than bright casino colours, and stacked bison and wolf symbols can fill large portions of the reels when they land, feeding directly into the stacked-wilds and stacked-symbols mechanics used elsewhere in the game.

Features and Mechanics

Wilds on Big Bad Bison carry multipliers. Per Big Time Gaming’s own game information, wild multipliers can reach up to x5, and stacked wilds let several multiplied positions apply to the same combination at once. The Random Multiplier feature can add further multiplication to a winning spin independent of wild positions, while the standalone Multiplier feature applies to the total win amount rather than to individual symbols.

The Free Spins round on Big Bad Bison is built on a Level Up structure: scatter symbols trigger the round, and reaching set milestones during play raises the reel set and wild behaviour to a higher level, with the Free Spins Multiplier increasing payouts as the round progresses. Per the provider’s own game page, the round runs on a retrigger ladder, so additional scatters landing during free spins extend the round rather than ending it outright.

Bonus Buy on Big Bad Bison lets a player pay to enter the Free Spins round directly, bypassing the need to land scatter symbols in base-game play; it joins the wider set of Bonus Buy slots that offer the same direct-purchase route into their feature rounds. The Gamble Feature offers a separate double-or-nothing step on wins outside that main structure, and the RTP Range feature means the casino offering the game can enable more than one RTP setting, so the figure actually live on a given spin depends on which version that operator has switched on.

Big Bad Bison’s engine is also tagged with Reel Power and Multiway (+1024) mechanics in its own classification, variants of the same ways-to-win calculation that the Megaways system extends up to its full 117,649 total.

RTP, Volatility and Payout Model

Big Bad Bison runs at an RTP of 96.58% with high volatility, in the version most widely listed by operators. The high-volatility label means winning spins land less often but can swing larger, particularly once the Free Spins round reaches its higher Level Up stages and stacked multiplier wilds compound across a combination. Across the stake range of 0.1 to 20.0, that points to a payout rhythm built around occasional large hits rather than a steady trickle of small wins, and because the slot carries an RTP Range feature, the live RTP setting at a given casino depends on which version that operator has enabled, shown in the game information panel there.

Similar Slots — Comparison

All six games in this comparison carry high volatility, so the risk profile stays constant across the set; what changes is the payout ceiling and small shifts in theoretical return. Big Bad Bison’s 67,640x maximum win sits inside a span that runs from 6,000x on Savage Buffalo Spirit Megaways up to 100,000x on Money Farm Megaways, the highest figure in this group. Panda Money Megaways, another Big Time Gaming title, sits closest on max win, with a 67,330x ceiling and a 96.1% RTP. On return, Savage Buffalo Spirit Megaways leads this group at 97.04%, while Mammoth Gold Megaways trails at 95.04%. A reader chasing the largest ceiling looks toward Money Farm Megaways; one weighing only the RTP gap gets a marginal difference against most of these titles, and should note that all five use cascading reels on top of Megaways, a mechanic this slot does not include.

How to Play Big Bad Bison Online

Big Bad Bison can be tried in demo mode before any stake is placed, which is the most direct way to see how the Level Up progression and multiplier wilds behave across a run of free spins without risking a deposit. Big Time Gaming, founded in 2011, has its full game library carried by 116 casinos tracked in this catalogue as of 23 October 2026, including operators such as Golden Star, Cashy and SpinCrypto. Readers comparing the wider provider output can look through the Big Time Gaming slots and casinos hub, and the general slots category lists further Megaways and high-volatility titles beyond this one.

Verdict on Big Bad Bison

Big Bad Bison suits players who want a high-volatility Megaways slot with a 67,640x maximum win; the Level Up and Free Spins Multiplier structure rewards patience through longer free spins rounds rather than frequent small wins. It is less suited to players looking for steady, frequent returns or for a cascading-reels mechanic, since neither trait is part of this title’s engine, and the high-volatility profile means bankroll planning matters more than it would on a lower-variance game.