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Best Megaways Slots: Top 10 Games Ranked & Where to Play
Megaways changed online slots. The reel-modifier engine, invented by Big Time Gaming in 2016, can generate up to 248,832 ways to win on a single spin — and licensees from NetEnt to Pragmatic Play to Blueprint have built it into more than 200 games. We've ranked the top 10 Megaways slots by RTP and max-win potential, picked the UK casinos with the deepest libraries, and explained how the maths actually works — including which RTP version your casino is serving.
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How we ranked the best Megaways slots
Megaways is a licensed mechanic — Big Time Gaming sells the engine to other studios, who build their own slots around it. That means the quality varies hugely. Here’s the criteria we use to separate the best Megaways games from the also-rans:
Criteria
What we look for
RTP version
Most Megaways slots ship in multiple RTP versions (96.5%, 94%, 88%). We confirm which version a UK casino is serving — never assume the highest figure is what you’ll get.
Max ways & max win
The headline “ways to win” number (117,649 standard, up to 1,000,000+ in some) is only meaningful if the maths back it up. We check the published max-win cap against the volatility profile.
Bonus round mechanics
The free-spins round is where Megaways slots earn their reputation. Unlimited multipliers (Bonanza, Extra Chilli) outperform capped multipliers; persistent symbols (White Rabbit) raise the ceiling further.
Cascading reels integration
Most Megaways slots layer cascading reels on top of the base mechanic. Quality of the cascade — how often it triggers, how the multiplier scales — separates good Megaways games from forgettable ones.
Provider track record
Big Time Gaming’s own Megaways slots set the bar. Pragmatic Play, Blueprint, Relax and Red Tiger are reliable licensees. Some smaller studios produce Megaways games that are mechanically sound but visually flat.
UK availability
We confirm the slot runs at multiple UKGC-licensed casinos and that the bonus-buy feature (where present) is correctly disabled for UK players, in line with UKGC rules.
The 10 best Megaways slots in 2026
These are the ten Megaways slots our team rates highest in the UK market. We’ve prioritised verified RTP versions, generous bonus mechanics and a balance between high-volatility hunters and lower-stakes options.
1. Reel King Mega (Megaways)
Stat
Detail
Provider
Red Tiger / Inspired
RTP
97.99%
Max win
5,000x
Volatility
Medium
Ways to win
Up to 117,649
Standout feature
Reel King bonus — classic-style mini-game layered on top of the Megaways engine
The highest verified RTP in the entire Megaways catalogue. Reel King Mega blends the Megaways engine with a Reel King mini-game that triggers randomly — a smart hybrid that suits players who like the volatility-easing of the original Reel King franchise.
The widest reels in Megaways — the row above the main reels can extend each reel up to 12 symbols tall, multiplying ways into a quarter-million. White Rabbit is the cult favourite of the BTG catalogue, with a brutal base game and one of the most rewarding bonus rounds in any slot.
3. Madame Mystique Megaways
Stat
Detail
Provider
Big Time Gaming
RTP
98.03%
Max win
15,000x
Volatility
High
Ways to win
Up to 117,649
Standout feature
Mystery symbol transformation in free spins
BTG’s own high-RTP standout. The Mystery symbol mechanic in the free-spins round can transform every appearance into the same high-paying symbol — instant six-of-a-kind wins are common when the right transformation lands.
4. Blood Suckers Megaways
Stat
Detail
Provider
NetEnt + BTG (licensed)
RTP
97.66%
Max win
10,000x
Volatility
High
Ways to win
Up to 117,649
Standout feature
Bonus Game with multiplier wins, layered onto the Megaways engine
NetEnt licensed Megaways from BTG to build a sequel to one of its most-played classics. The 97.66% RTP is well above the typical 96% Megaways floor, and the bonus game retains the spirit of the original Blood Suckers’ high hit-frequency feel.
5. Gonzo’s Quest Megaways
Stat
Detail
Provider
NetEnt + BTG (licensed)
RTP
96.00%
Max win
21,000x
Volatility
High
Ways to win
Up to 117,649
Standout feature
Avalanche cascading reels combined with unlimited multiplier ladder in free spins
The two most influential mechanics in modern slot design — NetEnt’s Avalanche and BTG’s Megaways — layered into one game. The unlimited multiplier in free spins is what drives the 21,000x max win.
6. Bonanza Megaways
Stat
Detail
Provider
Big Time Gaming
RTP
96.00%
Max win
26,000x
Volatility
High
Ways to win
Up to 117,649
Standout feature
Unlimited Win Multiplier in free spins (no cap)
The original Megaways breakthrough hit and still arguably the genre’s defining game. The unlimited multiplier in free spins is what every other Megaways studio chases — in Bonanza it can climb into three-figure territory on a long bonus round.
7. Extra Chilli Megaways
Stat
Detail
Provider
Big Time Gaming
RTP
96.82%
Max win
20,000x
Volatility
High
Ways to win
Up to 117,649
Standout feature
Gamble feature on free-spin count (UK players: see notes below)
The unofficial sequel to Bonanza, with a Mexican-food theme and a gamble feature that lets players risk free-spin counts for more spins. UK casinos have varied implementations of the gamble feature post-2024 stake-cap changes — check the in-game info screen for the version your casino is serving.
8. Fishin’ Frenzy Megaways
Stat
Detail
Provider
Blueprint Gaming
RTP
96.10%
Max win
50,000x
Volatility
High
Ways to win
Up to 15,625 (variable Megaways)
Standout feature
Fisherman bonus with collected-fish cash values
Blueprint took its long-running Fishin’ Frenzy series and grafted the Megaways engine on top. The result is the highest max-win in mainstream Megaways — 50,000x — thanks to the Fisherman bonus where fish symbols carry cash values and a wild-fisherman collects them.
9. Buffalo King Megaways
Stat
Detail
Provider
Pragmatic Play
RTP
96.52%
Max win
5,000x
Volatility
High
Ways to win
Up to 200,704
Standout feature
Tumble feature with progressive multiplier in free spins
Pragmatic Play’s most-played Megaways title. The American-prairie theme is generic but the maths are tight: a 200,704-ways grid combined with Pragmatic’s progressive-multiplier free-spins round and the Tumble mechanic carrying over from base game.
10. Lil Devil Megaways
Stat
Detail
Provider
Big Time Gaming
RTP
96.43%
Max win
40,000x
Volatility
Very high
Ways to win
Up to 117,649
Standout feature
Heart-symbol multiplier collection — build multipliers across re-spins
The cult favourite of high-volatility Megaways players. Lil Devil’s heart-symbol mechanic builds a multiplier that persists into the bonus round, where the right alignment can produce six- and seven-figure individual win lines on a single spin.
How Megaways slots work
Megaways is a reel-modifier engine, not a single mechanic. On every spin, each of the six main reels generates between two and seven symbols (sometimes more, depending on the game). Multiply those numbers together and you get the “ways to win” for that spin — up to 117,649 on a standard Megaways grid, and up to 248,832 on White Rabbit’s extended grid.
Wins land for matching symbols on consecutive reels from left to right, with at least one symbol per reel. Most Megaways slots layer cascading reels on top: winning symbols disappear, new ones drop in, and the cycle continues until no new wins land. The free-spins round typically adds an unlimited multiplier — this is where the genre’s biggest wins come from.
The RTP-version pitfall every UK player should know
Big Time Gaming licenses Megaways with multiple RTP variants. Bonanza ships in 96.00% and 94.06% versions; Extra Chilli has 96.82% and 94.66% versions; some titles drop as low as 88%. Which version a UK casino runs is the casino’s choice — not the player’s.
Always check the in-game info screen or paytable before you play. The RTP shown there is the version that casino is serving. Marketing copy outside the game (including some lobby filters) can quote the headline figure even when the actual game runs a reduced version. Our high RTP slots guide covers this in more detail and names operators known to serve full-RTP versions reliably.
Slot
Highest RTP version
Reduced versions in circulation
Bonanza Megaways
96.00%
94.06%
Extra Chilli Megaways
96.82%
94.66%, 91.50%
White Rabbit Megaways
97.77%
94.41%
Madame Mystique Megaways
98.03%
96.06%, 94.05%
Buffalo King Megaways
96.52%
94.51%, 88.51%
Lil Devil Megaways
96.43%
94.45%, 90.50%, 87.51%
If you’re playing for value, ruling out a casino that runs the reduced version is one of the highest-impact decisions you can make — the gap between 96.43% and 87.51% on Lil Devil is the difference between a fair house edge and a casino edge that’s effectively triple.
Where to play Megaways slots in the UK
Every UKGC-licensed casino of any size carries a Megaways selection — the engine is too well-known to skip. The differentiator is depth (how many Megaways titles in the lobby), version transparency (whether they publish the RTP version they serve), and bonus eligibility (whether their welcome offer can be played on Megaways at all).
The casinos listed at the top of this page have all been tested for Megaways library size, RTP transparency, and bonus terms. A handful are particularly strong for Megaways players:
Mr Vegas — one of the deepest Megaways libraries in the UK market, with all major BTG titles plus the full Pragmatic Play and Blueprint Megaways catalogues. Welcome bonus eligible on Megaways.
Sky Vegas — strong on Reel King Mega and Red Tiger Megaways titles in particular, plus the network jackpot Megaways games.
BetMGM Casino — transparent RTP version disclosure, with the highest-version of most popular Megaways titles served.
bet365 Casino — comprehensive Megaways selection across all major providers; the safety-first option for new Megaways players.
Casumo — well-curated Megaways selection rather than exhaustive; gamification elements (Adventure mode, trophies) appeal to bonus-feature hunters.
UKGC licensing is the non-negotiable. Avoid any “Not on GamStop” / offshore site claiming to offer Megaways slots — the games may be the same, but the player protections are not, and the regulatory accountability does not exist.
Which slot providers make the best Megaways games
Big Time Gaming licenses the Megaways engine to most major studios, but the quality of the resulting slot depends almost entirely on the licensee. Here’s how the major providers compare:
Big Time Gaming (the inventor)
Big Time Gaming made the engine and still makes the best Megaways slots. Bonanza, White Rabbit, Extra Chilli, Lil Devil, Madame Mystique — all from BTG’s own studio. The maths are typically tighter than licensees’, the bonus rounds are more inventive, and the RTP versions are the most transparent.
NetEnt
NetEnt‘s Megaways titles — Gonzo’s Quest Megaways, Blood Suckers Megaways, Divine Fortune Megaways — are essentially Megaways reskins of NetEnt classics. Strong production values and high RTPs, but the mechanics are inherited rather than original. Best entry point for players coming from the NetEnt catalogue.
Pragmatic Play
Pragmatic Play‘s Megaways line includes Buffalo King Megaways, Power of Thor Megaways, Sugar Rush Megaways. The execution is competent and the RTPs are middling (typically 96.5%) — Pragmatic’s strength is the Tumble mechanic, which combines well with Megaways but doesn’t significantly raise the ceiling.
Blueprint Gaming
Blueprint Gaming applies the Megaways engine to its existing IP — Fishin’ Frenzy Megaways, Genie Jackpots Megaways, Eye of Horus Megaways. The 50,000x max win on Fishin’ Frenzy Megaways is unusually high; the rest of the catalogue is solid mid-tier.
Red Tiger
Red Tiger (an Evolution sister-studio to NetEnt) produced Reel King Mega, the highest-RTP Megaways slot in circulation. Their Megaways portfolio is small but quality — if you only play Red Tiger Megaways titles, you’re skimming the top of the market.
Relax Gaming & others
Relax Gaming, iSoftBet, ReelPlay and a handful of smaller studios also produce licensed Megaways games. Quality is variable; verify the RTP version before playing any title from a smaller studio, since reduced versions are more common at the long tail of the market.
Guide to choosing the right Megaways slot for you
The Megaways catalogue spans hundreds of titles — from low-volatility entry games to certified knife-edge volatility hunters. The right slot for you depends on three questions:
1. How much do you care about max-win potential?
Megaways slots advertise huge ways-to-win numbers, but the practical max win is what matters. Bonanza’s 26,000x and Lil Devil’s 40,000x are reachable on the right bonus round; Reel King Mega’s 5,000x is a more modest ceiling that comes paired with much higher RTP. If you’re chasing big multipliers, lean toward unlimited-multiplier titles (Bonanza, Extra Chilli, Gonzo’s Quest Megaways). If you want steadier returns, Reel King Mega and Madame Mystique Megaways pair high RTP with smaller max wins.
2. How comfortable are you with deep volatility?
Megaways slots run hotter on volatility than typical slots — the ways-to-win mechanic creates frequent micro-wins but the meaningful payouts come from cascading combos in the bonus round. White Rabbit, Lil Devil and Bonanza are very-high-volatility games; you’ll see long stretches of break-even or loss before a bonus triggers. If that’s not your style, Reel King Mega, Buffalo King Megaways and Fishin’ Frenzy Megaways sit in the medium-to-high band rather than very-high.
3. Do you want the original mechanic, or a Megaways reskin?
BTG-original Megaways slots are designed around the engine. Licensee titles graft Megaways onto an existing slot — sometimes the integration is seamless (Gonzo’s Quest Megaways, Blood Suckers Megaways) and sometimes it’s awkward (older licensee attempts). If you’ve never played a Megaways slot, start with a BTG-original (Bonanza, Extra Chilli) so you experience the mechanic as designed; then explore the licensee versions of slots you already know.
How Megaways compares for new slot players
Megaways is not the easiest entry point for slot beginners. The bonus rounds can be opaque, the volatility is higher than average, and the multiple RTP versions add a layer of complexity. If you’re new to slots, we’d point you to our slots overview first — learn the basics on a low-volatility classic, then come to Megaways once you’re comfortable with how slot maths work.
Pros and cons of playing Megaways slots
Megaways slots dominate the modern UK lobby for a reason — the engine produces some of the most exciting bonus rounds in any slot. But the mechanic isn’t for everyone. Here’s an honest balance.
Pros
Massive max-win potential — unlimited-multiplier free-spin rounds in titles like Bonanza and Lil Devil produce some of the biggest single-spin payouts in any slot category.
High-RTP options exist — Reel King Mega (97.99%), Madame Mystique (98.03%) and White Rabbit (97.77%) are among the highest-paying slots of any kind in the UK market.
Wide selection across providers — every major studio licenses the engine, so you'll find Megaways versions of most popular slots and can easily try the format with a slot you already know.
Cascading reels add hit frequency — the cascade mechanic on top of Megaways means base-game wins compound in a single spin, smoothing out the volatility curve compared to traditional payline slots.
Cons
Multiple RTP versions in circulation — the same slot can run at 96%, 94% or even 88% RTP depending on which version your casino licenses. Always confirm in-game.
High volatility as standard — most Megaways games run hotter than the average slot. Long dry spells between meaningful payouts make Megaways unsuitable for tight bankrolls.
Bonus-buy disabled in the UK — many Megaways slots have a buy-bonus feature that lets you pay to trigger free spins directly. UKGC rules ban this for real-money UK play; you'll see the button in demo mode but it's disabled at UK casinos.
Complex bonus mechanics — the layered Megaways + cascading-reels + multiplier-ladder bonus structure can be opaque to new players. Most Megaways slots are not the best entry point for slot beginners.
A short history of Megaways
Big Time Gaming, an Australian studio founded in 2011, first deployed the Megaways engine in Dragon Born in 2015 — though the slot that put the format on the map was Bonanza in 2016. Bonanza’s mining theme, unlimited-multiplier free spins and 117,649 ways to win became the template every other Megaways slot has worked from since.
BTG took an unusual path for a slot studio: rather than keep the engine in-house, they licensed it to other developers. The first licensee was Pragmatic Play in 2017; NetEnt followed in 2019; Blueprint, Red Tiger, Relax Gaming, iSoftBet and ReelPlay are now all licensed to use the format. By 2022 over 200 Megaways slots had been released across the industry, and the engine had become standard furniture in any UK casino lobby.
BTG itself was acquired by Evolution Gaming in 2021, putting Megaways under the same parent company as NetEnt, Red Tiger and NoLimit City. The licensing programme continues regardless — non-Evolution studios still pay BTG to use the engine.
The most-cloned mechanic in modern slots remains BTG’s, but the studios that built on it have arguably done more with it than BTG itself. White Rabbit (BTG, 2017) and Bonanza (BTG, 2016) remain genre highlights; the licensee catalogue is where the depth now lives.
Megaways compared to other slot mechanics
Megaways isn’t the only “high ways-to-win” mechanic on the market. NetEnt’s Cluster Pays (Aloha! Cluster Pays, Reactoonz) abandons paylines entirely; Yggdrasil’s Infinity Reels grows the grid as wins continue; Pragmatic Play’s Tumble + grid-pay mechanic (Sweet Bonanza, Gates of Olympus) prioritises hit frequency. Each makes a different trade-off between ways-to-win, volatility and bonus-round mechanics. Here’s how Megaways stacks up against the closest comparisons.
Megaways vs other mechanics
Megaways versus Cluster Pays
Megaways uses traditional reels with variable symbol counts. Cluster Pays — pioneered by NetEnt in Aloha! Cluster Pays (2016) and now used in titles like Reactoonz and Sweet Bonanza — abandons reels and paylines entirely. Wins land for any cluster of 9+ matching symbols anywhere on the grid.
The practical difference: Cluster Pays slots tend toward higher hit frequency and lower volatility, while Megaways tends to deliver fewer but larger wins. If you like the steady rhythm of constant small payouts, Cluster Pays is the friendlier mechanic; if you want big bonus-round swings, Megaways is built for that. Many players keep both in regular rotation.
Megaways versus high-RTP slots
If you want the highest expected value over the long run, Megaways isn’t necessarily the answer. Most Megaways slots run at 96.0–96.5% RTP — respectable, but well below the 98%+ outliers in NetEnt’s classic catalogue (Mega Joker at 99%, Blood Suckers at 98%) or Relax Gaming’s Book of 99.
That said, the highest-RTP Megaways titles — Reel King Mega (97.99%), Madame Mystique Megaways (98.03%), White Rabbit Megaways (97.77%) — sit comfortably in elite RTP territory. The key is choosing carefully and verifying the RTP version your casino is serving. See our high RTP slots guide for the full picture.
Megaways versus jackpot slots
Jackpot slots divert a slice of every wager into a network prize pool that grows continuously until one lucky spin triggers the full payout. Mega Moolah, Hall of Gods and Age of the Gods are the headline UK names. Megaways slots don’t typically run network jackpots — the format favours large multiplier-driven wins over progressive prize pools.
A handful of Megaways titles do run local jackpots (Divine Fortune Megaways from NetEnt is the obvious example) but the genre’s identity is built on bonus-round multipliers rather than seven-figure jackpot drops. If you’re chasing the biggest possible single payout, jackpot slots are the right category. If you want the highest practical session-level max win, Megaways is the answer. Our jackpot slots guide covers the maths in detail.
Responsible gambling
Megaways slots are designed for entertainment, not income. The high-volatility nature of the format means longer dry spells between payouts — set a budget before you start, never chase losses, and only gamble with money you can afford to lose. All UK-licensed casinos are required by the UK Gambling Commission to offer a range of tools to help you stay in control:
Deposit limits: set a daily, weekly or monthly cap so you can’t deposit more than you’ve decided to spend.
Loss limits and session limits: automatically log out or stop play after a set time or loss amount.
Reality checks: on-screen reminders showing how long you’ve been playing and how much you’ve spent or won.
Time-out and self-exclusion: short cooling-off periods, or — through GamStop — full self-exclusion from every UKGC-licensed casino in the UK simultaneously.
If your gambling stops being fun, free, confidential help is available 24/7 from BeGambleAware or the National Gambling Helpline on 0808 8020 133.
You must be 18 or over to gamble. Always check the full terms of any bonus before opting in.
Madame Mystique Megaways from Big Time Gaming holds the highest published RTP at 98.03%. Reel King Mega from Red Tiger sits very close at 97.99% and is more widely available at UK casinos. White Rabbit Megaways (97.77%) and Blood Suckers Megaways (97.66%) round out the top tier. Always check the in-game info screen — multiple RTP versions of these slots exist, and not every casino runs the highest version.
On every spin, each of the six main reels generates between two and seven symbols. Multiply the symbol counts together and that’s the ways-to-win for that spin — a maximum of 117,649 on a standard Megaways grid (7 to the power of 6). Wins land for matching symbols on consecutive reels left-to-right. Most Megaways slots also use cascading reels, where winning symbols disappear and new ones drop in, allowing chain wins on a single spin.
Big Time Gaming (BTG), an Australian studio founded in 2011, invented the Megaways engine and first deployed it in Dragon Born in 2015. Bonanza in 2016 was the slot that put the format on the map. BTG was acquired by Evolution Gaming in 2021 but continues to license the Megaways engine to other studios — every Megaways slot in circulation today is either a BTG-original or a BTG-licensed game.
The highest published max win in mainstream Megaways is 50,000x your stake on Fishin’ Frenzy Megaways from Blueprint Gaming. Lil Devil Megaways (BTG) hits 40,000x; Bonanza Megaways and Gonzo’s Quest Megaways both reach 26,000x and 21,000x respectively. The unlimited-multiplier free-spin rounds on BTG-original titles are where the biggest single-spin wins come from.
Big Time Gaming licenses Megaways slots in multiple RTP versions — typically a high version (96–98%) and one or more reduced versions (94%, 91%, sometimes 88%). Which version a casino chooses to run is the casino’s commercial decision. The slot looks identical and behaves identically; only the long-run payback percentage differs. Always check the in-game info screen or paytable to confirm which version you’re playing.
No. Many Megaways slots include a buy-bonus (or “feature buy”) option that lets you pay a multiple of your stake to trigger the free-spins round directly. UKGC rules ban bonus-buy features for real-money UK play, so this option is disabled at every UKGC-licensed casino. You may see the button in demo mode but it will not function for real-money UK accounts. The free-spins round still triggers organically as designed.
Honestly, not really. Megaways slots run higher volatility than typical slots, the bonus rounds use layered mechanics (Megaways + cascading reels + multiplier ladders) that can be opaque, and the multiple RTP versions add another layer of complexity. New slot players are better served starting with a low-volatility classic like Starburst or Blood Suckers, learning how slot maths work, and graduating to Megaways once you’re comfortable.
Mr Vegas, Casumo and Sky Vegas all maintain particularly deep Megaways libraries — typically every BTG-original title plus the major Pragmatic Play, NetEnt, Blueprint and Red Tiger Megaways releases. The casinos in our top-5 list at the top of this page have all been audited for Megaways library size, RTP transparency and bonus eligibility on Megaways titles.
The people behind this page
Compare.bet's online gambling content experts helped write, edit and check this page:
Anthony Colwell is the Site Lead and Editor at compare.bet, bringing over eight years of hands-on experience across the sports betting and online casino sectors. Having spent the last two years steering the editorial direction at compare.bet, Anthony knows exactly what players are looking for when choosing a new betting site or casino. His deep industry knowledge allows him to cut through the noise, providing readers with honest, expert insights they can trust.
When he’s not reviewing the latest sportsbook features or casino games, Anthony is a massive football fan and a lifelong Manchester United supporter. Away from the screen, you’ll usually find him out on the golf course trying to lower his handicap.
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