Lunar Link: The Legend of King Arthur Slot by Playtech

Six Blue Moon orbs on the board at once light the fuse. Each Moon carries a cash value, and once the Lunar Link Hold & Respin starts, every Moon locks and you get three respins. Land another and the count resets to three. Filling a whole reel does something different depending on which one. Pack reels 1, 2 or 3 with Moons and a wheel spins a multiplier up to x5 across all the cash on that reel. Fill reel 4 and the wheel hands over a Special Prize instead. Fill reel 5 and the top position opens for a shot at the progressive Grand. Switch on the Extra Bet and the round triggers on five Moons rather than six, at double the stake.

Two Moon variants shake up a running round. A Chest Moon sweeps every cash Moon on its row, the ones there now and any that land later. A Crown Moon upgrades up to eight random cash Moons, adding up to 10x your bet to each. Apart from all that, a single Golden Moon dropping anywhere spins the Lunar Link Wheel, which can pay a cash prize, a Special Prize, a multiplier, free games, or a Lunar Link prize that showers extra Moons onto the reels to force the Hold & Respin open.

The Free Games round runs six spins off three or more Bonus symbols, and a giant 2x2 or 3x3 Wild or Moon can land across the middle reels. If a big Moon drops and sets off the Hold & Respin, it breaks apart into single Moons, each carrying its own prize. Wins settle across four jackpot tiers: the progressive Grand for filling reel 5, then a fixed Major, Minor and Mini worth 500x, 100x and 20x from the reel-4 wheel.

It all plays out over a moonlit Camelot, a white-spired castle above a misty fjord, snow-capped peaks, and red dragons wheeling across a purple sky under a pale moon. King Arthur himself, crowned and red-caped in silver plate with a lion shield, looms behind the reels as the Wild, standing in for everything but the Blue Moon, the Golden Moon and the Bonus. There's a lot to keep straight here. Two wheels, several Moon types, chests and crowns and orbs all doing separate jobs, and the 30,081x ceiling is rare enough that most sessions won't come near it. But the moon-fill mechanic gives every reel a reason to matter, which is more than a lot of hold-and-win games manage.