Release the Bison Slot by Pragmatic Play

Four or more wilds on a single base game spin trigger the Wild Respin Feature. Every wild on the grid becomes roaming - shifting to a random position after each respin. The game pays between respins, and each new wild that lands adds another respin while bumping the win multiplier up by 1x. Any bonus symbols collected during this sequence count toward triggering free spins, so the respin feature doubles as a gateway to the main bonus.

Free spins open with a two-sided wheel. One half determines the spin count (8 to 18), the other sets a base multiplier (x1 to x5). More bonus symbols on the trigger improve the floor - five bonus symbols lock out the lowest wheel values entirely, guaranteeing at least 10 spins with a minimum x3 multiplier. Three buy tiers are available: 80x for three bonus symbols, 150x for four, and 300x for five, each adjusting which wheel values are possible.

During free spins, every wild that hits converts into a roaming wild that sticks around for the rest of the round. A collection meter tracks them. Once five wilds have been collected, each additional wild adds one more free spin and raises the multiplier by 1x, up to a cap of 10 collected wilds. The combination of persistent roaming wilds and a climbing multiplier is where the bonus generates its biggest moments.

A random guaranteed win kicks in occasionally on dead base game spins, converting them into payouts between 10x and 40x total bet. The ante bet option raises the cost by 25% but increases the frequency of bonus symbols. This is the third entry in the "Release the..." series after Kraken and Kraken 2, though the win cap sits at 3,000x - lower than the 5,000x and 10,000x of its predecessors.