Bonanza Megapays Slot by Big Time Gaming

Four progressive jackpots run in a lit ladder across the top of the quarry, Mega in purple, Major in red, Midi in blue and Mini in green, and every bet anyone places nudges all four higher. That ladder is the reason this exists apart from the 2016 Bonanza it's built on. Any spin at all can hand you the Megapays Feature. A random symbol from Ace down to 9 gets picked out, every copy of it on the board locks, and the reels respin looking for more of the same. Land four or more locked copies and you win a progressive jackpot: four to seven pays the Mini, eight to eleven the Midi, twelve to fourteen the Major, and fifteen or more takes the Mega, which starts at 300,000 euros and never stops climbing. Those pools are real money, so they don't pay out in demo play.

Under the ladder, the reels sit in a rocky open-cast pit with a wooden miner's shack and its lit lantern down to the left and a little waterfall turning a wheel on the right. Above reels two through five runs a minecart rail, and each cart tips an extra symbol onto the reel below it, which is how the ways count balloons the way Megaways games do. Every win clears its symbols and drags replacements down from above and in from the right along the carts, and those reactions keep chaining as long as wins keep forming. Cut gems in purple, blue, green and red pay above neon card royals.

Spell G-O-L-D with the gold letter blocks that ride in on the carts and you trigger 12 free spins carrying a multiplier that never resets. It opens at x1 and climbs by one after each reaction, with no ceiling, so a single spin that reacts a dozen times drags the multiplier up with it and holds that value for the rest of the round. Extra scatters arriving in the carts stretch the round, three for five more spins, four for ten.

You can buy straight into the free spins, and Feature Drop symbols shave money off the price. The jackpot side stays out of that deal. It only ever fires from a live bet on this rugged little gold-rush dig, never from a purchase.