Pop Slot by Big Time Gaming

The free spins are where Pop pulls away from other reacting slots. Three or more Scatters hand you 12 spins, and the hook is what happens across the 16 grid positions: every single one carries its own multiplier, and none of them reset until the round is over. The spots that held your triggering Scatters open at x2, x3 or x4. Every other position starts at x1. From there, each win built from balloons or wilds bumps one or more of the winning positions up a step, and because those values stick, the board slowly fills with climbing numbers, some corners left cold at x1 while others tower after a hot run. There's no ceiling on how high a single position can reach, which is where the top payout hides. Land 3 or more Scatters again mid-round and you get 3 extra spins plus a lift to one of those positions.

The base game runs on reacting wins. Balloons in a winning combo pop and clear, and each emptied spot is refilled by a fresh drop, a new balloon, a Scatter or a Wild, so one spin can chain repeatedly while wins keep landing and quietly stockpiles Scatters toward the bonus. Wilds show up as Full Reel Wilds, each stamped with a multiplier, and balloon or wild wins can push that multiplier higher before it pays. If you'd rather not wait, you can buy the feature outright, with Feature Drop symbols shaving the price down when they land, and a bought round can roll an enhanced version of the spins at random.

The whole thing sits at a seaside funfair at sunset. A boardwalk glows over an orange sea, a lit Ferris wheel turning behind the action, a DONUTS stall and candy-apple stands strung with fairground bulbs. The four paying balloons run purple, red, blue and green over card royals. No jackpots, and despite the studio's Megaways reputation this one isn't Megaways, just a fixed 256-way board wired around those stacking free-spin multipliers.