7's On Fire Power Mix Slot by Light & Wonder

Four 3x3 reel sets, one button, all spinning together. That's the framing here. Each array runs its own five lines for a combined twenty paylines, but the real reason this exists as a separate game from plain classic 7s On Fire is what happens between the arrays.

Any flaming WILD 7 that lands in view transfers to the same row-and-reel coordinate on every other array. Drop a Wild in the middle position of the top-left set and three copies instantly appear in the dead-center of the other three sets. The math gets interesting when a position already holds a Wild. Instead of overwriting, the incoming Wild stacks as a multiplier on the existing one, so a single transferred copy becomes 2x, two become 3x, and the cap sits at 4x. Across four arrays each with five paylines, that ripple effect is the only thing separating a flat fruit grind from a meaningful hit.

WILD 7 is also the top symbol on its own, paying 125x bet for a three-of-a-kind on any single array. Below it sits the standard Light & Wonder fruit-machine roster: a flaming-rimmed BAR brick, the silver bell, a chunky watermelon wedge, plum, orange slice, lemon, cherries, and a gold five-point star anchoring the low end. Symbols sit inside dark purple windows with orange neon piping; the whole thing burns against a deep crimson backdrop with vector flame silhouettes licking up the sides. Pure Vegas floor energy, no story, no characters.

What you don't get: no free spins, no scatter, no bonus round, no jackpot ladder, no buy feature, no held respins. The Wild transfer is the entire mechanic. For a 2022 release that's a thin offering by modern standards, and the 8,000x ceiling reflects that scarcity, but the four-array layout solves the boredom problem of a single 3x3 better than expected. You're always watching four outcomes resolve at once, which means dead spins on three boards still leave a fourth in play. Light & Wonder didn't reinvent the format here, they just multiplied it by four and let one symbol do all the heavy lifting.