Mega Moolah Lucky Bells: Slot Overview If ever there’s a slot series which needs no introduction, it’s Mega Moolah from Microgaming and friends. The legendary first slot, pgslot auto simply titled Mega Moolah, dropped back in 2006, clothed in an African wildlife theme. Since then, the progressive jackpot network has paid out over a billion Euros, including making several instant millionaires. With a history like that, it’s no wonder players, and developers are consistently pulled back. The iteration in question here is called Mega Moolah Lucky Bells and comes from Gold Coin Studios, which pairs four progressive jackpots with a free spins feature where a win multiplier increases on each spin.