The Demon Code Slot by Light & Wonder

The multiplier is the engine here, and it only climbs. It starts at x1 and ticks up by one every time a cascade lands a win, and again every time the void clears the grid. It never drops back during a round, so a long chain of cascades can push it well past the values you usually see in cluster games. When the free games trigger, whatever multiplier you hit on the spin that set them off carries straight over instead of resetting.

Wins form as clusters of four or more matching symbols touching along horizontal or vertical edges, never diagonals. After a win, those symbols clear and new ones drop from the top to fill the gaps. There is a second clearing mechanic too. When a cascade leaves wilds stranded on the board with no win, Enter the Void wipes every wild plus everything touching it, including the corner-to-corner neighbours, then drops a fresh cascade in. That removal counts as a multiplier bump on its own.

Four demons sit behind the stone columns, one in each corner, and each one answers to a coloured talisman that drops into the grid mid-cascade. The green demon's Ancient Alchemy seeds cluster-friendly mystery symbols that all reveal the same paying icon. The blue demon's Cryptic Chaos pays out every copy of one random symbol scattered across the board. The purple demon scatters in extra wilds, and the red demon drops a solid 3x3, 4x4 or 5x5 block of one symbol that can fuse with whatever sits next to it. Only one talisman fires per cascade.

Collecting four scatters opens the free games, where the grid gains a row at the start and can keep stretching, an extra row every four scatters, all the way to twelve. Hit that twelfth row and the meter retires with a one-off +10 to the multiplier. The art leans hard into dark occult fantasy, with glossy clawed gem orbs, a fiery pit glowing under the reels, and shadowy yellow-eyed creatures lurking in the gloom behind the columns.