Mega Moolah Slot Review, The Guinness Record Progressive That Has Paid Over €1 Billion

If you rate Microgaming’s work on Mega Moolah, The Osbournes and Thunderstruck 2 are a natural next step. Mega Moolah offers an RTP of 88.12% on a 5-by-3 grid with 25 paylines, and comes from Microgaming. For more in the same vein as Mega Moolah, try Jumbo Stampede, King Of Africa and Ivory Citadel. On the bonus side you get progressive jackpot and increasing multipliers. That shows up as free spins multiplier and scatter symbols. Mega Moolah counts as a Low RTP title and runs medium-low volatility.

November 2006. Microgaming releases Mega Moolah and creates the template for the networked progressive jackpot slot that every major developer has since tried to replicate. Twenty years on, it has paid out more than €1 billion across all jackpot tiers to players worldwide. The largest nominal single win on record is €19,430,723.60, hit on Absolootly Mad: Mega Moolah in Belgium in April 2021, though the officially certified Guinness World Record for largest online slot payout still stands with British soldier Jon Heywood’s £13.2 million (€17.88 million) win at Betway Casino in October 2015.

The base game RTP of 88.12% is the number players most frequently misunderstand about Mega Moolah. Roughly 5.3% of every bet feeds the jackpot pool rather than returning through regular wins, the effective base game RTP without that contribution is 88.12%, but jackpot wins distribute enormous sums back. This is not a slot to play for session entertainment. It is a slot to play when you want exposure to a jackpot that changes lives.

Mega Moolah casinos

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Mega Moolah: Pros and Cons

Reviewed by Paul Stone
Published: August 2018
Updated: July 2026

Pros

• The Mega Jackpot seeds at £1 million, every single trigger guarantees at least seven figures, meaning there is no such thing as a small Mega Moolah jackpot win
• The jackpot wheel can trigger on any spin regardless of outcome, a losing base game spin can still activate the jackpot game, meaning every single bet carries genuine jackpot exposure
• Over €1 billion paid out since 2006 across all tiers, the network’s track record of consistent, verifiable seven-figure payouts is unmatched by any other online slot
• Free spins with a 3x multiplier on all wins create genuinely meaningful non-jackpot win potential for a low-volatility game, the base game delivers regular small returns to sustain sessions
• The franchise network is extensive, Immortal Romance: Mega Moolah, Thunderstruck 2: Mega Moolah, Mega Moolah Megaways and over 15 variants all contribute to and draw from the same Mega Jackpot pool

Cons

• 88.12% base game RTP is genuinely low, when you are not playing for the jackpot, you are playing a game that returns less per bet than almost any other mainstream slot at UK online casinos
• The jackpot trigger is entirely random and probability-weighted, higher bets improve the odds of triggering the jackpot wheel, but there is no strategy or skill element, and no guaranteed frequency
• Maximum bet is £6.25, unusually low for a game with a £1 million+ jackpot. Higher-stakes players who want proportional jackpot exposure are constrained by this ceiling
• The base game itself is simple to the point of being minimal, two buffalo charging on the reels is not sophisticated entertainment by modern standards. Players who do not engage with the jackpot proposition will find the game unremarkable
• The jackpot averages a payout every 49 days but this is a long-term statistical observation, specific wait times are unpredictable and the interval between wins can be considerably longer

How Mega Moolah Works

The game uses a five-reel, three-row grid with 25 fixed paylines. The safari theme features lions, elephants, giraffes, buffaloes, monkeys and zebras as its symbol set. The lion is the wild, substituting for all regular symbols and doubling any win it contributes to. Three or more monkey scatter symbols anywhere on the reels trigger 15 free spins with a 3x multiplier on all wins throughout the feature. Minimum bet is £0.25, maximum is £6.25.

The jackpot wheel triggers randomly after any spin, including losing spins. Higher bet sizes improve the probability of triggering the wheel, though the relationship is weighted rather than linear. Once triggered, the wheel spins and lands on one of the four jackpot colours. The section the wheel lands on determines the tier won: Mini (£10 seed), Minor (£100 seed), Major (£10,000 seed) or Mega (£1,000,000 seed). All values grow continuously from their seeds until won.

The Four Progressive Jackpots

The Mini jackpot triggers frequently for small amounts, providing regular progressive payouts across the player base. The Minor follows at £100 seed level. The Major at £10,000 is less frequent. The Mega, seeding at £1 million, averages a payout every 49 days historically, though this is a long-term statistical average and individual intervals vary considerably. All four tiers grow from a share of every bet placed on every title in the Mega Moolah network across hundreds of casinos globally.

The Mega Moolah Network

Microgaming (now operating progressive jackpots through Games Global) has expanded the Mega Moolah jackpot to over 15 connected slot titles. Absolootly Mad: Mega Moolah, Immortal Romance: Mega Moolah, Thunderstruck 2: Mega Moolah, Mega Moolah Megaways and others all contribute to and can win from the same four jackpot pools. Players on any network title can trigger the jackpot game, making the pool one of the fastest-growing in online gambling. Microgaming’s progressive jackpot pedigree is not limited to this network either, its standalone King Cashalot is another long-running Microgaming progressive jackpot slot, though it runs its own separate prize pool rather than feeding into the Mega Moolah wheel.

Our Verdict

Mega Moolah is not a slot to be evaluated on conventional criteria. Its RTP, its base game features, its symbol set, none of these are the reason it exists or the reason players return to it. It exists to give players a genuine shot at a seven-figure life-changing payout, and it has delivered that shot more times than any other online slot in history.

If you play Mega Moolah expecting session entertainment at good value, you will be disappointed, the 88.12% base game RTP is among the lowest in mainstream UK online slots. If you play it understanding that you are buying a lottery ticket denominated in casino spins, with the most proven track record of paying multimillion jackpots in the industry, it delivers exactly what it promises.

SlotsLike rating: 8/10, Judged on its own terms as the world’s premier progressive jackpot slot. Over €1 billion paid, the Guinness Record for largest payout, and a Mega Jackpot that seeds at £1 million. No other slot touches this track record.

Mega Moolah, Key Stats

Mega Moolah slot information last reviewed: May 2026

Mega Moolah Player Reviews

The comments below are unverified third-party player remarks originally sourced from AskGamblers.com, reproduced here for a general sense of player sentiment. SlotsLike has not independently confirmed the individual claims, spin counts or amounts mentioned, and they should be read as anecdotal opinion rather than fact. For SlotsLike’s own tested, editorial assessment of the game, see the Our Verdict section above and the Expert Take further down this page.

Top 5 Biggest Wins on Mega Moolah slot

Creator: BigWins
Date: 30th October 2020
Casino in the Video: Vulkan Vegas

With a nice intro and a design logo, this video is a recording of a streamer playing a slot name Mega Moolah, which has a very animal theme to attract players with the basic love to the slot. The interface is very user-friendly and the sound effects are also very good. The streamer starts the play and there is no live chat present in this video but we can see as he is talking, he does not win anything good at the start but after some small wins, he won a big win of 750,00.

Creator: GamblingMetropolis
Date: 17th November 2015
Casino in the Video: GamblingMetropolis

This is a session recorded on a slot name Mega Moolah, we can see the slot playing, and theirs no live person present in it. The game starts and the animal sounds also start with that, the cartons graphic is a way to attract more players. The player spins some but did not win many but soon he won a jackpot wheel in which he won a mega win of 1,502.428.65 which was unbelievable and amazing for both the player and the watchers to see this victory.

Creator: Online-Slot UK
Date: 9th December 2019
Casino in the Video: Online-Slot

This is a video on the slot Mega Moolah, no live voice or a person is playing the slot. This is a pre-recorded video on which a person played to win big. The game starts with some cartoonish animals and some heavy sound effects to boost the player’s morale. The player starts the game with some dry spins but soon as they move he does win a jackpot spin in which he won 2,772,916.45 which was very huge for him or the viewers. The luck was with him and the slot paid him off which was very surprising.

Creator: Luppa Tamás
Date: 31st January 2020
Casino in the Video: Energy Casino

This is a windows recording playing a slot name Mega Moolah live on a browser, the game has a very good and funny theme. The funny sounds also make it more interesting as well as the interface attracts more players. The player in this video start spinning some and does not win a good win until he won an amazing big at the end of 159,750.00 which was very surprising for him, his luck was very good and the slot also showed its good side, the game has a very good RTP to offer to its players.

Creator: Winner Circle
Date: 29th October 2015
Casino in the Video: Winner Circle

This video has a good intro and then we can see a slot name Mega Moolah playing, the slot has animal-type sound effects and a unique interface to attract players, the game has a good theme. The player start some spin and won only small victories but then he won a jackpot spin, at which he won a jackpot bonus of 1,000,009.60 which was very amazing to see. The player won it from nothing because of his luck and goodwill to play until winning well.

Games like Mega Moolah

Mega Moolah has several close matching slots based on game and bonus features, they are Morocco, Ivory Citadel, Cash Stampede and Jumbo Stampede.

King Of Africa is a slot built by WMS. The reels form a 5-reel, 3-row layout offering 20 paylines. The feature set covers free spins, no win respins and increasing multipliers. Look out for wild icon and the hot hot penny respins feature. Stakes run from 0.3 up to 150 a spin, so it suits both small and larger budgets. It returns 92.14% and counts as low overall. In practice that means the game pays back around that share of stakes over a long run of spins, not in any single session. On return it edges out Mega Moolah, which runs 88.12%. Expect medium-low volatility here, so wins land fairly regularly and tend to be modest, which keeps sessions steady. It is frequently grouped with Africa Goes Wild. Pick it over Mega Moolah when you want a steadier, lower-risk session.

Developed by Bally, Ivory Citadel carries a Shopping theme. It is played across a 5 reel, 3 row grid with 243 ways to win, so there are lots of winning combinations on offer. On return it edges out Mega Moolah, which runs 88.12%. Headline features include free spins, expanding wilds and increasing multipliers. Specific touches include expanding wild symbol. The RTP is 94.78%, which is medium-low for the market. Treat it as a guide to long-run payback rather than a promise for any one session. Expect medium-low volatility here, so wins land fairly regularly and tend to be modest, which keeps sessions steady. You can bet from 0.4 to 400 per spin, leaving room for cautious and bigger play alike. It also draws comparisons with Oonga Boonga and Legends of Africa. Fans of Mega Moolah should find plenty to like here.

Cash Stampede is a slot built by NextGen. You spin a 5-reel, 3-row grid with 243 ways to win in play, giving plenty of ways for symbols to line up. Expect medium-low volatility here, so smaller wins come around often, so the balance moves more smoothly. On return it edges out Mega Moolah, which runs 88.12%. Gameplay extras run to free spins, no win respins, pick a prize bonus, improving symbols and stampede feature. Specific touches include cash stampede respins feature, wild substitute and scatter trigger free game feature. The RTP is 95.27%, placing it in the medium bracket. That figure is a long-term average rather than something to expect back each session. Stakes run from 0.25 up to 250 a spin, so it suits both small and larger budgets. It also draws comparisons with African Quest. It sits close to Mega Moolah in feel, making it a natural follow-on.

Jumbo Stampede is a slot built by Isoftbet. The reels form a 6-reel, 4-row layout offering 4096 ways to win. Stakes run from 0.2 up to 20 a spin, so it suits both small and larger budgets. Expect medium volatility here, so you get a balanced pace, with wins that are neither tiny nor rare. It returns 95.94%, which is medium for the market. In practice that means the game pays back around that share of stakes over a long run of spins, not in any single session. On return it edges out Mega Moolah, which runs 88.12%. Headline features include free spins and cluster pays. Look out for block of jumbo symbols, free spins mode choosing and scatters landed. It is frequently grouped with Lions Roar. Fans of Mega Moolah should find plenty to like here.

KING OF AFRICA:- This is an African Themed Slot game that was developed by WMS. It has been designed with a layout of 5 reels, 3 rows and 20 paylines. The volatility is Medium-low and it has a feature description that includes Wild Icon Bonus, Free spins Bonuses, The Hot Hot Penny Respins Bonus Rounds and Multiplier Bonus.

IVORY CITADEL:- Ivory Citadel is another African Themed Slot game but this one is developed by Bally. It’s RTP Category and Volatility is Medium-low. It has been designed with 5 reels, 3 rows and 243 paylines. There is also the Expanding Wilds Symbol Bonus Rounds, Free Spins Bonus, Multiplier Bonuses and Scatter Bonus.

CASH STAMPEDE:- is developed by Nextgen Gaming who gave it a lot of bonus features like Cash Stampede Respin Bonus, Scatter Trigger Free Game Bonus, Wild Substitute Bonus and Select Black Red Cards or Suit to Win Bonus Rounds. It has 5 reels, 3 rows, 243 paylines and a medium-low volatility.

JUMBO STAMPEDE:- Isoftbet is the brain behind the development of Jumbo Stampede. It has a medium RTP Category and Volatility. It has got the Free Spins Bonus, Block of Jumbo Symbol Bonus and Cluster Pay Bonus Rounds. It is also designed with a layout of 6 reels, 4 rows and 4096 paylines.

Mega Moolah slot critic’s reviews

Slots.info: The record-breaking wins in Mega Moolah have made it a go-to title for online slot fans. If you want to win a jackpot without travelling to Vegas, then this is the game for you!

Online-Slot.co.uk: The soundtrack is that of a traditional African tribe which ties in with the theme nicely. Despite it’s veteran status, Microgaming have revamped Mega Moolah a few times to make the graphics and animations sharper and high definition.

Casino.org: There’s a reason that, nearly thirteen years after its release, this game is still played every day by thousands of people all over the world.

OnlineGambling.com: Still holding the Guinness World Record for the biggest online slot payout, there’s no getting around the fact that Mega Moolah is the OG when it comes to life-changing jackpots. In addition to being the original, many argue it’s still the best.

CasinoBloke.com: Get your survival kit on, because Microgaming is taking you on a safari of a lifetime! Mega Moolah is a five-reel slot with 25 adjustable paylines that is set in the heart of the African savanna inhabited by plenty of dangerous wild animals.

SlotsLike Expert Take

Outside coverage of Mega Moolah leans heavily on its jackpot history, and rightly so, but it is worth being honest about the base game too. Judged purely as a slot to spin for its own sake, Mega Moolah is dated. The reel set is simple, the bonus round is a single free spins feature, and the 88.12% base RTP is low even by progressive jackpot standards. What keeps it relevant two decades on is not the gameplay, it is the fact that every single spin, at any stake from 25p upward, carries a genuine shot at a random six or seven figure win. That trade-off will not suit everyone, and players chasing entertaining base-game mechanics are better served elsewhere on this site. Players chasing a real, proven shot at a life-changing jackpot are in exactly the right place.

Slots that feel like Mega Moolah

Mega Moolah is largely an African themed online slot with slight hints towards Wild, Animal and Jackpot themes.

Standout African themed games

This slot game is very interesting as it has been designed to have an African theme as it’s primary theme then other themes like Wild, Animal and Jackpot accompany it. It’s also called Millionaire Maker. When you open the game, you are welcomed with this African wildlife setting with beautiful sunset including animals in the wild and song in the background. It is an adventurous game with a very simple gameplay. There are still other games in the same category as Mega Moolah and they are :- Eye of Horus, Lions Roar, Jumbo Stampede and Cash Stampede.

Mega Moolah is a African themed slot game. Other African demo slots in this theme include Cash Stampede, Jumbo Stampede, Lions Roar and Eye Of Horus.

More from Microgaming, the studio of Mega Moolah

Microgaming as we all know does not lag behind when it comes to developing games and making them quality for players. It is a privately owned United Kingdom Game company and it is based in the Isle of Man. All the games developed by this company are always nothing short of fun. It has been around for over two decades so it is safe to say that the experience they have gained over the years has been put to good use for the development of this game. They have also developed other slot games in like manner with Mega Moolah and those games are inclusive of Genies Gems, Playboy, Bullseye and Banana Odyssey.

We’ve listed The top Microgaming slot games to play, these slot games are all made by the same producer as Mega Moolah, they are Playboy, Genies Gems, Banana Odyssey and Bullseye.

Best places to play Mega Moolah

Royal Vegas

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Spin Casino

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Gaming Club

Gaming Club casino offers a stunning website that utilizes a colour combination of black and green colours which looks amazing, the welcome bonus that this online casino has is also great as this welcome bonus allows the new players to increase their balance up to $350 by applying it. This welcome bonus can be applied with a minimum deposit of $10, with bonus funds subject to wagering before withdrawal; UK players benefit from the UKGC’s 10x maximum in force since 19 January 2026, several other offers are also mentioned on the website that can be claimed by any players.

Offer figures above were reviewed for the 2026 UKGC bonus rules in July 2026.

All Slots Casino

All Slots Casino covers all kinds of devices and the players can download their application related to their device and begin playing their favourite games on this casino. The casino also offers a support team that is helpful as the agents are active 24/7 and the players can ask kinds of questions without any issues. The website does include the live chat service but the telephone service that this casino provides is also instant, the live chat can be accessed with one click, and the agent receives a response within seconds.

Jackpot City

The Jackpot City Casino is regulated by Bayton Ltd and the players can trust this online casino for the money because the Malta Gaming Authority is the license provider of this casino. The website is good and the selection of games is also enjoyable, the bonuses also offer a good selection for the players to choose from. The website of Jackpot City casino is completely secure and it only offers legit methods for transactions to prevent any kind of mishaps. The security system uses encryption to ensure that everything on the website is protected.

Mega Moolah, Key Stats

Here is a table of key information about Mega Moolah.

Mega Moolah Screenshot

Mega Moolah Bonus Features

Mega Moolah Paytable

Slots with the same bonuses and features as Mega Moolah

Mega Moolah has similar slots with the bonus features: Progressive Jackpot and Increasing Multipliers.

Online slots with Progressive Jackpot

The best matching slots with Progressive Jackpot are Captain Nemo, Wish Upon A Jackpot, Chests Of Plenty and The Pig Wizard Jackpot.

Other slots with Increasing Multipliers

The best matching slots with Increasing Multipliers are Golden Offer and Bon Bon Bonanza.

Sources & Verification

This page was re-verified against primary sources in July 2026: Games Global’s own press material (Mega Moolah’s progressive jackpot business passed from Microgaming to Games Global in 2022) confirms the live MegaJackpots network, including linked titles such as Absolootly Mad: Mega Moolah and Book of Mega Moolah, via its official press release archive; the Guinness World Records official record page confirms Jon Heywood’s £13.2 million Betway win of October 2015 as the currently certified record for largest online slot payout, separate from the larger €19.4 million nominal payout won on Absolootly Mad: Mega Moolah in 2021; and the UK Gambling Commission’s own announcement confirms the 10x wagering requirement cap under Social Responsibility Code 5.1.1, in force since 19 January 2026, referenced in the casino offers above.

Mega Moolah slot sites FAQs

Mega Moolah, Frequently Asked Questions