Six reels that change height on every spin, and a headline number nobody ever explains. The maths behind 117,649 is simple enough to do in your head, and once you have done it the format makes far more sense — including why these games feel so different from an ordinary slot at exactly the same return to player.
Three from our list of ten with deep enough libraries to carry the major Megaways titles. All are international casinos accepting players from Ireland; none holds an Irish licence.
A conventional slot has fixed paylines — twenty, twenty-five, whatever the game specifies — and a win has to land on one of them. Megaways slots throw that away. Every reel can show between two and seven symbols, redrawn on every spin, and any matching symbols on consecutive reels pay regardless of position.
So the number of ways to win is simply the reel heights multiplied together. All six reels at maximum: 7 × 7 × 7 × 7 × 7 × 7 = 117,649. All six at minimum: 2 × 2 × 2 × 2 × 2 × 2 = 64. Both happen, and everything in between happens too.
Here is the part the banner leaves out: more ways to win does not mean more winning. When the reels are seven high, each individual way is worth proportionally less, because a six-symbol match is a smaller share of a much larger grid. The maths balances. What you get is not a better game — it is a different-shaped one.
Nearly every Megaways game includes cascading reels, and this is where the format earns its reputation rather than in the headline number.
When symbols form a win, they disappear. The ones above drop into the gap, new symbols fall in from the top, and if the new arrangement makes another win, it pays too — and cascades again. A single spin can pay four or five times before it finishes.
Which is why a Megaways session feels the way it does. Most spins produce nothing at all, and then one erupts into a chain that runs for fifteen seconds and pays sixty times the stake. That is high volatility, and it is baked into the format rather than being a setting on the side.
Take two slots at an identical 96% RTP: one ordinary, one Megaways. Over a hundred thousand spins they return the same. Over your two hundred spins on a Tuesday evening they behave nothing alike.
The ordinary slot pays something small every few spins. The balance drifts down gently, with regular small recoveries, and €20 lasts a while. The Megaways game gives you long stretches of nothing — thirty, forty spins with almost no return — and then a cascade that puts a chunk back. On €20 at 20c a spin you have a hundred spins, and there is a real chance the dry stretch outlasts your money entirely.
So the practical rule is about stake sizing rather than game choice. Megaways needs a smaller bet per spin than you would use on an ordinary slot, precisely because you need to survive long enough to reach the part that pays. Playing them at the same stake as a low-volatility game is the single most common mistake with the format.
In most Megaways titles the base game is a waiting room. The bonus round is where the multipliers appear — typically an unlimited progressive multiplier that rises with every cascade and does not reset between spins. That is where the large wins come from, and it is why the max win figures are so enormous.
Which brings up the bonus buy button, offered by many of these games: pay 80 to 100 times your stake and go straight into the feature. The RTP on a bonus buy is usually similar to the base game, so it is not a swindle. What it does is compress your session — one purchase at €1 a spin costs €100, and if the feature falls flat, an evening's budget is gone in a minute. Speed is what costs money in a casino, and the buy button is speed sold as convenience.
Megaways suits someone playing small stakes for a long session who does not mind long empty stretches, and who is there for the chance of a big cascade rather than steady returns. It suits almost nobody playing a small balance at a normal stake.
If you want the balance to move gently and the evening to last, a low-volatility game at the same RTP does that far better — the RTP guide explains why the percentage is only half the picture. And if you are chasing a genuinely life-changing number rather than a big cascade, that is a different format again: see jackpot slots.