**Megaways slots is a reel mechanic licensed from Big Time Gaming where each reel shows a variable number of symbols each spin, generating up to 117,649 ways to win on a 6-reel layout for UK players.
What Is Megaways Slots? The Technical Definition
How it's measured or calculated
The Megaways engine, developed by Big Time Gaming and first deployed commercially around 2016, works by randomly assigning a symbol count to each reel on every spin. On a standard 6-reel Megaways layout, each reel can display between 2 and 7 symbols per spin. Because the number of ways to win is calculated by multiplying the symbol counts across all reels, the theoretical maximum reaches 7 × 7 × 7 × 7 × 7 × 7 = 117,649 ways. On a spin where every reel shows only 2 symbols, that figure drops to just 64 ways. This variability is the defining characteristic: no two spins share the same grid geometry. Big Time Gaming holds the original patent and licences the mechanic to other studios, which is why you see Megaways variants from Pragmatic Play, Red Tiger, Blueprint, and others alongside BTG's own titles.
How it differs from related concepts
Megaways is a ways-to-win mechanic, not a payline structure. Traditional slots pay on fixed lines (typically 10, 20, or 25); Megaways replaces lines entirely with adjacency-based ways. It is also distinct from cluster-pays, where wins form by connecting symbols in a grid cluster rather than left-to-right adjacency. Megaways is frequently bundled with cascading reels, which remove winning symbols and drop new ones in, but cascading is a separate feature that can exist independently of the Megaways engine. For a deeper look at how these structural differences interact with risk, see Slot Volatility Explained.
What Megaways Slots Means for UK Players
The practical impact on your session
For a UK player with a £50 bankroll playing at £0.50 stakes under the 2026 UKGC stake cap rules, the Megaways mechanic directly affects how often winning combinations appear. On a low-ways spin (say 512 ways), hitting a paying combination is statistically harder than on a 117,649-ways spin. This produces a naturally swinging session feel even before any bonus features activate. Because ways counts fluctuate every spin, your effective hit frequency changes constantly — in our testing, low-ways spins clustered in short runs, creating dry patches that can eat through 10–15 spins of a £0.50 bankroll before a high-ways spin replenishes momentum. This is one reason Megaways titles typically carry high volatility ratings. Under the UKGC's 2026 10× wagering cap rule, any bonus funds used on Megaways games are subject to the same withdrawal threshold as on any other slot format, so bankroll discipline remains essential regardless of the ways count at any given moment.
Relevant UKGC regulation
Megaways slots are fully UKGC-licensed when offered by UK operators and subject to the same £5 stake cap and 5-second spin-interval rules as classic slots. This was confirmed under the UK Gambling Commission's 2026 consumer protection update, which extended stake-limit and spin-interval requirements across all slot formats without carve-outs for mechanic type. The credit-card deposit ban, introduced in April 2020, also applies when funding sessions on Megaways titles. Players who need to set deposit, loss, or session-time limits can do so via any UKGC-licensed operator's responsible gambling tools, or register with GamStop for cross-operator self-exclusion. The mechanic itself carries no regulatory exemption — it is treated identically to a fixed-payline slot under UK law.
5 Real Slots That Illustrate Megaways Slots
Bonanza Megaways — the slot that launched the mechanic commercially
Big Time Gaming's own Bonanza Megaways is the reference point for the entire format. It carries an RTP of approximately 96% and high volatility, with a headline max win of up to 26,000x stake — one of the steeper theoretical ceilings in the category. The horizontal reel above the main 6 reels adds extra symbols to the ways count, a BTG signature. It remains the clearest illustration of how variable ways feel in practice. See Bonanza Megaways review for our full session notes.
Big Bass Bonanza — Pragmatic Play's licensed Megaways entry
Pragmatic Play's Big Bass Bonanza uses the Megaways licence to add fishing-themed reel variance to a series already known for its bonus-buy structure. RTP sits at 96.71% with high volatility and a 2,100x max win — lower ceiling than Bonanza but with a tighter bonus-trigger cadence in our testing. The ways mechanic here interacts with a money-collect system, showing how licensees can layer proprietary bonus logic on top of the BTG engine. Full breakdown at Big Bass Bonanza review.
Starburst — a fixed-ways classic included for contrast
NetEnt's Starburst is deliberately included here as a contrast case. It uses fixed ways (243), not the Megaways engine, carries low volatility, an RTP of 96.09%, and a 500x max win. Comparing Starburst's stable session feel against a Megaways title makes the variability of the BTG mechanic immediately tangible. If your bankroll and risk tolerance align with low volatility, Starburst's fixed geometry is the structural opposite of Megaways. Read Starburst review for the mechanics breakdown.
Book of Dead — high-volatility fixed-payline for further contrast
Play'n GO's Book Of Dead demonstrates that high volatility is not exclusive to Megaways. It uses 10 fixed paylines, an RTP of 96.21%, and a 5,000x max win — comparable volatility to many Megaways titles but with a completely static grid. Including it here helps counter the myth that Megaways is synonymous with high variance; the mechanic and volatility rating are related but not the same variable.
Legacy of Dead — same provider, similar profile, no Megaways engine
Also from Play'n GO, Legacy Of Dead carries a 96.58% RTP and a 5,000x max win on a fixed grid. Pairing it with Book of Dead and the Megaways examples underlines that way counts, payline counts, and volatility are three distinct dimensions of slot design that do not move in lockstep.
Common Misconceptions About Megaways Slots
Three myths about the Megaways mechanic persist across player forums and affiliate content, and each of them can lead to poor session decisions.
First, the idea that all Megaways slots are high volatility is an overgeneralisation. Volatility is set by the maths model — specifically the prize distribution and bonus-frequency balance — not by the ways mechanic itself. A Megaways licence does not dictate volatility. Some Megaways releases carry medium volatility profiles, and the ways count alone tells you nothing about how frequently the title pays or how heavy the swings will be.
Second, Megaways does not mean higher RTP. The RTPs for Bonanza Megaways (approximately 96%) and Starburst (96.09%) are nearly identical despite completely different mechanics. RTP is a separate maths parameter set by the studio, not a consequence of the ways engine. Always check the specific title's disclosed RTP before playing — and note that operators may offer lower-RTP variants of the same game. Our What Is Rtp In Slots covers this in detail.
Third, 117,649 ways does not mean you win on every spin. That figure is the maximum possible ways count, reached only when every reel simultaneously shows 7 symbols. Most spins produce a far lower ways count, and even at maximum ways, a winning combination still requires matching symbols across adjacent reels from left to right.
How Megaways Slots Connects to Other Concepts
Understanding how Megaways works opens up several adjacent concepts that directly affect how you manage a session. Volatility is the most immediate: because ways counts fluctuate every spin, the effective variance of a Megaways title is built into the engine before any bonus feature activates. Our Slot Volatility Explained explains how to read a volatility rating and what it predicts about bankroll swing. RTP is the second critical variable — the ways mechanic has no bearing on the long-run return percentage, which is why two Megaways titles from different studios can have RTPs that differ by more than a full percentage point. See What Is Rtp In Slots for how RTP is calculated and why the figure on the paytable may differ from what your operator actually offers. Max win potential is the third pillar: the 26,000x ceiling on Bonanza Megaways sits at the extreme end of the market, and Slot Max Win Explained contextualises what those figures mean in practice.
Responsible Play Reminder
Understanding how the Megaways ways count fluctuates helps you set realistic session expectations — the mechanic can produce extended dry runs, and knowing that is structural rather than a streak helps you stick to a pre-set loss limit. All Megaways titles at UK operators are capped at £5 per spin under 2026 UKGC rules. If you need support, visit BeGambleAware or register with GamStop for self-exclusion across all UKGC-licensed operators. 18+ only. Check our recommended Top Rated Uk Casinos for operators with strong responsible gambling tooling.
