Rise of the Mountain King Slot by Light & Wonder

The two features here are built to overlap, which is the whole reason the original plays better than its cut-down sequel. Land three or more wilds on a single spin and the King's Re-Spin fires. Those wilds hold in place, any scatters already on screen turn into wilds before the respin, and a King Reels overlay spins only over the triggering positions. Every fresh wild that drops sticks too and buys another respin. It keeps chaining until a respin lands no new wild, or until all fifteen positions are wild and there is nowhere left to fill.

The free games run on a separate idea. Three, four or five battle-axe scatters award 8, 9 or 10 spins, and a collect meter sits above the reels counting axes for the whole round. Every wild win during free games carries a multiplier, starting at x5 and stepping up as the count climbs: x10 at six axes, then x15, x25, x50 and finally x100 once eighteen are banked. Each new scatter also tacks an extra spin onto the round, so a hot streak both raises the multiplier and stretches the bonus. And the King's Re-Spin can still trigger inside the free games, so held wilds stack their wins on top of whatever tier the meter has reached. That overlap is where the 25,000x cap actually comes from.

There are two ways into the bonus without waiting. The straight Buy Pass costs 100x and drops you into the free games with the meter primed at x5. Or you can gamble for it in 12.5x steps up to 87.5x, paying less for a proportional shot rather than a guaranteed entry, which is an unusual middle ground between a normal buy bonus and just spinning for it. There is also a standard red/black or suit gamble on line wins.

The reels float over a misty mountain pass at night, a stone-railed wooden bridge running toward a lit fortress with embers drifting at the edges and a low full moon over jagged purple peaks. A crowned lion-faced king and a purple-haired troll head the paytable, a tiara-wearing princess and a skull-bossed shield sit just under them, and gothic-carved royals handle the low pays in cold grey stone. If the dark-fantasy castle mood lands for you, Light and Wonder runs a similar throne-room theme in King Arthur.