The jackpot that made history
Launched by Microgaming in November 2006 and now run by Games Global, Mega Moolah is the best-known progressive jackpot slot in the world. Its four-tier network jackpot — Mini, Minor, Major and Mega — grows with every wager placed across every casino carrying the game, with the Mega tier seeded at 1,000,000.
In October 2015 it paid UK player Jon Heywood £13.2 million from a 25p spin, a Guinness World Record at the time, and Games Global reports its Mega Moolah and WowPot networks paid out more than €155 million in 2023 alone.
How the 88.12% RTP breaks down
The published base-game RTP is 88.12% — low on paper, because a further ~5.3% of every stake feeds the progressive jackpot pools, bringing the total theoretical return to roughly 93.4% once jackpot contributions are included.
The jackpot wheel triggers at random after base-game spins (never during free spins), and bigger stakes earn proportionally more wheel triggers. Any wheel spin is guaranteed to award one of the four jackpots.
Safari base game
Beneath the jackpot sits a straightforward 5x3, 25-payline safari slot with stakes from 0.25 to 6.25 per spin. Three or more monkey scatters award 15 free spins with all wins tripled (3x), retriggerable, and the lion wild doubles any win it completes.
