Mega Moolah - William Hill Casino

Mega Moolah is the slot most Irish players name first when jackpots come up, and it has been paying out since November 2006. It comes from Games Global, the studio formerly known as Microgaming. William Hill's own guide to slot studios lists Mega Moolah, Thunderstruck II and Immortal Romance in the Microgaming catalogue, and the game-rules pages carry Mega Moolah jackpot titles such as Absolootly Mad: Mega Moolah.

The Irish lobby itself cannot be browsed from outside Ireland, so the honest advice is simple: log in, open the Vegas lobby and search for Mega Moolah by name. If you type "Mega" you will also see the related jackpot titles that sit in the same network, which are covered further down this page. Casino play is in the browser on both desktop and phone, so there is nothing to download.

If you came here looking for the William Hill casino Mega Moolah answer in one line: it is a 5-reel, 3-row slot with 25 fixed paylines, an RTP of 88.12% in the base game and four progressive jackpots. The panel below sums up the key numbers.

Mega Moolah sticks to a plain grid of five reels by three rows with 25 fixed paylines, so you cannot switch lines off to lower the cost of a spin. Wins pay from the left across adjacent reels, and the whole game is built around two things that can change a spin: the lion and the wheel.

The lion is the wild. It stands in for ordinary symbols to complete a line and doubles the wins it helps to make. The monkey is the scatter that opens the free spins round. Neither the volatility nor the bet range is stated for this slot, so open the info screen once the game loads and read the stake limits there before you choose a bet.

Players searching for the Mega Moolah RTP usually find two numbers and wonder which one is right. Both are: the base game is 88.12%, and the figure including the jackpot contribution is 93.42%. William Hill's rules page for a related title, Absolootly Mad: Mega Moolah, shows the same pattern in a different split.

For Absolootly Mad: Mega Moolah, the rules page gives 86.72% plus a 5.30% jackpot contribution, which adds up to 92.02%. In Mega Moolah itself the gap between 88.12% and 93.42% is also 5.30 percentage points. In plain terms, a slice of every stake goes into the progressive pool instead of the ordinary prizes, so the reels alone pay back less than a standard slot, and the jackpot makes up the difference over a very long run.

The RTP is a long-term theoretical figure, tested by approved labs over millions of rounds, and it says nothing about your next hundred spins. Volatility is not stated for Mega Moolah, so judge it by the info screen and by how your own session feels. The simulator below shows what a session of 300 spins looks like at each version.

Mega Moolah has grown into a family of games that share the same four-tier jackpot network. Each one wraps the wheel in a different theme, so pick the one whose look you enjoy most while waiting for the wheel. For any figure not listed below, the info screen in the game is the place to look.