Buffalo Stack 'n' Sync

Hacksaw Gaming places Buffalo Stack 'n' Sync on the dry plains west of the Mississippi, a landscape of cacti and weathered rock where a scattered buffalo herd roams across a 5-reel, 4-row grid. Ten fixed paylines carry the action, and wins land when three to five matching symbols line up left to right. Card royals from 10 to A make up the low end of the pay table, worth 2x to 4x the stake for a five-of-a-kind hit, while bison, eagles, wolves, cougars and horses form the premium tier, paying 10x to 20x for the same line. A cactus wild can appear on any reel, substitutes for every paying symbol, and matches the bison's payout when it completes a five-symbol line on its own.

Two extra symbol types drive the game beyond the base paytable: a Stack'n'Sync symbol that can land in either the base or bonus game, and a Stack symbol reserved for Stampede Spins. Landing an S'N'S symbol fills its reel with 15, 30, 45 or 60 copies of a single symbol and hands out a respin; further S'N'S hits on that respin sync their reels together and add more respins on top. When a stack of buffalo symbols builds up on a reel, those symbols merge into a Stampede Reel carrying a multiplier anywhere from x1 up to x100, which applies to any buffalo win it takes part in, and the multipliers add together when more than one Stampede Reel is active at once.

Three flaming scatter symbols trigger 10 free spins, a round in which high-paying symbols land stacked more often, feeding more Stampede Reel opportunities. A separate path opens through four bonus symbols, which launch Stampede Spins: here the reels fill with buffalo symbols, Stack symbols and blank skull tiles, and each Stack symbol that lands swaps 5 to 60 skulls for buffalo symbols while adding an extra spin. A Buy Bonus menu offers three direct entry points instead — a guaranteed S'N'S symbol with a respin, straight into Free Spins, or straight into Stampede Spins — each carrying its own adjusted RTP.

Buffalo Stack 'n' Sync rates as high volatility at 4 out of 5, hits on roughly 1 in 5 spins, and returns 96.36% RTP on its highest configuration, with three lower settings also available for operators who want a reduced edge. Stakes run from 0.10 to 100 per spin, and the maximum win is capped at 10,000x the stake.