Flock Me Slot by NetEnt

Cartoon birds in orange jumpsuits fill a 42-cell grid built into a brick prison wall, complete with barbed wire, guard towers, and a "State Prison" sign peeling off the left side. The roaming wild - an eagle warden in uniform - is the central piece. It moves to a new position after every win it contributes to, and each move increases its multiplier by one with no cap. Land two Eagle Wardens on the same cascade sequence and their multipliers multiply together, not add. So a x4 and a x3 produce x12, not x7. That distinction matters on a board this size.

Two named features pull those wilds onto the grid directly. Flock Me places up to two Multiplier Wilds on the reels at once, and Super Flock Me does the same but tacks on 5 free spins. The Cross Wild feature expands a wild into a cross shape, which on cluster pays inflates the cluster count faster than a standard wild substitution would. There's also a Cleaning feature that strips symbols off the reels, forcing fresh ones to drop in - useful when the board is cluttered with dead positions after a long cascade. Free spins trigger from three alarm scatters and award 5 spins with stacked multipliers, meaning Eagle Warden values carry between spins instead of resetting. The Elevate panel on the left side of the grid lets you buy into any of these individually. Boost just increases trigger odds at a lower price, while the direct purchases go up to Super Free Spins, which combines the Flock Me wild placement with a full bonus round.

Low-pay symbols are prison objects - wrecking balls, dynamite bundles, toilet paper rolls, golden whistles - rendered in a chunky cartoon style against concrete-gray reel cells. The bird characters come in four species, each with a distinct personality: one wears a gold chain, another has purple hair, a third hides behind sunglasses. 2x2 colossal versions of both high and low symbols appear regularly, counting as four positions toward a cluster. Dead West runs on the same NetEnt engine with the same grid dimensions and cluster-pays base, but the multiplier wild behavior here is more aggressive - uncapped growth plus multiplicative stacking between wilds gives the cascades a different shape entirely.