Grand Bison

Grand Bison by Red Rake Gaming is a 5-reel, 3-row video slot featuring 25 fixed paylines set in a rugged wilderness theme, with bison, wolves, lynx and other animal imagery amid desert canyons and open plains. The game includes Wild Multiplier symbols which substitute for regular symbols and also multiply the total win of a spin by 2×, 3× or 4× depending on how many of them appear in that spin. There are Scatter symbols which appear only on reels 2, 3 and 4; landing three Scatters triggers a Free Spins round of 7 initial spins. During Free Spins, each Scatter collected contributes to a meter that transforms specific high-value animal symbols into Wilds and awards extra free spins at certain thresholds. As the counter fills, the Lynx symbol becomes a Wild after accumulating a certain number of Scatters, then later the Bison, and then the Wolf, each transformation also granting additional spins. The Wild Multipliers remain active during the base game and continue to provide the same substitution and boost effects. Grand Bison does not feature a separate bonus buy mechanic (unless enabled in specific jurisdictions), nor does it include multiple bonus rounds beyond the Scatter-activated free spins. The game is built in HTML5 so it adapts across desktop and mobile devices. The overall feel combines classic slot layout simplicity with escalating feature-driven excitement as players collect Scatters during free spin sessions.

You can try it for free in demo mode or play it for real money.