Mega Moolah is a 5-reel, 25-payline African safari-themed progressive jackpot slot developed by Microgaming (now Games Global) and released on November 30, 2006. It is the most successful jackpot slot in the history of online gambling — with over 150 millionaires created and more than €1 billion paid out across its lifetime.

The game is set against a sun-baked savannah populated by lions, elephants, giraffes, buffaloes, zebras, and monkeys. Its visual style is deliberately accessible and cartoon-like, making it approachable for all levels of player. But beneath the friendly presentation lies a prize engine of extraordinary power.

What separates Mega Moolah from every other slot is its four-tier progressive jackpot network — a global pool fed by every bet placed at every casino offering the game simultaneously. The Mega Jackpot seeds at $1,000,000 and has peaked above €19 million before paying out. It can be triggered randomly on any spin, regardless of bet size, making it theoretically accessible to anyone.

Mega Moolah has a base RTP of 88.12%. This is intentionally lower than most slots because approximately 5.3% of every bet is redirected into the progressive jackpot pool. When jackpot contributions are included, the overall theoretical RTP rises to approximately 93.42%. For normal sessions, you will experience the 88.12% base return.

Any bet qualifies for the Mega Moolah jackpot. The minimum spin of $0.25 can trigger the jackpot wheel — and several major wins have been recorded on minimum or near-minimum bets. In June 2025, a British player won the jackpot from a £1.50 bet. Higher bets slightly increase the probability of the wheel appearing, but do not change the jackpot amount.

The Mega Jackpot has historically paid out approximately every 60–100 days on average, with a commonly cited average of around 80 days. However, timing varies significantly — it can hit multiple times within months, or go longer between wins. Since 2006, there have been over 150 Mega Jackpot wins across the network.

Yes — Mega Moolah was remastered in HTML5 and is fully playable on iOS and Android devices. The game is available in both browser and native app formats at supported casinos. The progressive jackpot is connected to the same global pool regardless of whether you play on desktop or mobile — so the jackpot amount and odds are identical.

The largest Mega Moolah jackpot was €19,430,723 won on April 27, 2021, by a player at Napoleon Sports & Casino in Belgium playing Absolootly Mad: Mega Moolah — a linked game in the Mega Moolah network. The original game’s record is CA$20,059,287 won in January 2019 at Zodiac Casino by an anonymous Canadian player.

Land 3 or more Monkey Scatter symbols anywhere on the reels during the base game to trigger 15 free spins. All wins during free spins are multiplied by 3×. Free spins cannot be retriggered. Note: the progressive jackpot wheel cannot activate during free spins — it only triggers during paid base game spins.

Yes. Mega Moolah is developed by Games Global (formerly Microgaming), one of the oldest and most regulated companies in online gambling. The RNG is independently audited by eCOGRA. The game is licensed and available at regulated casinos globally. All jackpot wins are verified and fully paid out — over 150 millionaires can attest to that.