Gold Hit: Shrine of Anubis Slot by Playtech

Most Gold Hit titles hand you a Multiplier coin that stamps a fixed number onto whatever it touches. This one works differently. When the Multiplier coin lands, it collects every prize already locked on its own reel and turns into their combined total, so its value depends entirely on what you've stacked up that column. A reel loaded with cash coins and a jackpot sitting behind them makes that coin worth far more than a printed multiplier ever could.

The rest runs on the series coin-lock. Three kinds of gold coin drop and stick for at least three spins: Cash Prize coins carrying a set value, Mystery Prize coins holding a jackpot, and the Multiplier coin above. Fill a whole reel with coins and every prize on it pays at once. The catch is the shape of the grid. The reels climb in uneven steps, four symbols tall on the left and eight on the right, so packing that tall right column takes twice the coins the short ones need. Anubis presides over it all, a jackal-headed god in blue-and-gold regalia holding a glowing green winged-ankh staff, the reels set into a temple gateway above a pit of fire while violet pyramids and palm silhouettes sit against a burnt-orange desert dusk.

The four jackpots are fixed, not progressive, and come only from the Mystery Prize coin: Mini 20x, Minor 50x, Major 200x and Mega 500x your total bet. A winged-scarab Bonus symbol starts the Free Games, where cash prizes are multiplied and the coins stay locked the whole way through. Fill a reel during that round and a wheel spins to multiply everything on it by up to x10, with the full board paid when the spins run dry. There's no dedicated buy, just a Double Chance of Bonus ante that doubles your odds of reaching the round. Get the coins and that wheel to cooperate and the ceiling sits around 8,270x total bet.