Microgaming (legacy)

Microgaming is where online slots began. Founded in 1994 on the Isle of Man, the studio built the software behind The Gaming Club, widely credited as the world's first online casino, and followed it with a string of industry firsts: Cash Splash, the first wide-area progressive jackpot slot, arrived in 1998, and the company shipped the first mobile casino software in 2004. It also co-founded the independent testing agency eCOGRA in 2003, helping establish the fairness standards the industry still leans on.

The brand's crown jewel is Mega Moolah (2006), the safari-themed progressive that anchors the largest jackpot network in iGaming — over €1.3 billion paid out, including a Guinness World Record €17.9m win by Jon Heywood in 2015 and later record-setting hits of €18.9m (2018) and roughly €19.4m (2021). Beyond the jackpots, Microgaming's legacy catalogue includes evergreen titles bonus hunters still see everywhere: Immortal Romance with its four-tier character free spins, Thunderstruck II's Great Hall of Spins, and Avalon II. The 243-ways engine popularized by these games became a genre standard, and crossover releases like Immortal Romance Mega Moolah bolt the progressive network onto classic titles.

The corporate picture changed in 2022, when Microgaming sold its distribution business (Quickfire) and online games portfolio to Games Global. New releases and the Mega Moolah network now ship under the Games Global banner, while Microgaming continues as a content provider live on 1,000+ operator sites, with in-house studios, an exclusive Playboy-branded portfolio, and live casino and specialised RNG products. For bonus hunters, the practical takeaway: the legacy library — commonly cited at 800+ games — runs on the older Microgaming math model, meaning mostly medium volatility, feature-driven free spins rounds rather than bonus-buy mechanics, and licensed, heavily audited RNGs (MGA, UKGC, eCOGRA/GLI testing). Immortal Romance and Thunderstruck II in particular remain staples of hunt lists thanks to their multi-level free spins features, while the Mega Moolah family offers jackpot exposure at low stakes.