Five reels of three rows give 243 ways to win, the layout behind Immortal Romance, Thunderstruck II and Twin Spin. Five classics compared on return, top win and features.
Why Three Rows on Five Reels Make 243
A 243 ways slot has no drawn paylines. A symbol in any row of the first reel can link to the same symbol in any row of the second, then the third, and so on to the right, so a five-reel, three-row grid holds 3 x 3 x 3 x 3 x 3 = 243 routes. A win needs matching symbols on neighbouring reels starting from the left, and they can sit in the top row on one reel and the bottom row on the next.
Microgaming, now Games Global, made the format famous with games like Immortal Romance and Thunderstruck II, and NetEnt took it up for Twin Spin and Victorious. All five games below run on the classic 5×3 grid, so they are 5 reel slots as well.
Immortal Romance, Thunderstruck II and Three More
Ranked by top return. Every one of these games can be set to a lower version, and the rules screen inside the game shows the one your casino has picked.
| Game | Studio | RTP | Max win | Volatility | Hit frequency |
|---|---|---|---|---|---|
| Victorious | NetEnt | 96.88% | 1,500x | Medium-high | – |
| Immortal Romance | Games Global | 96.86% | 12,150x | High | 31% |
| Thunderstruck II | Games Global | 96.65% | 8,000x | – | – |
| Twin Spin | NetEnt | 96.55% | – | – | 28% |
| Jurassic World | Games Global | 95.45% | 14,000x | Medium | 31% |
A dash in the hit-frequency column means no figure is published. Elsewhere it marks a split between listings: Thunderstruck II is rated medium by most and high by some, while Twin Spin’s top win appears as 1,000x or 1,080x and its volatility as medium or medium-high.
Victorious
NetEnt’s medieval battle game has the highest top return of the five at 96.88%, with medium-high volatility and a 1,500x ceiling. Three, four or five wreath scatters give 15, 20 or 25 free spins, and wins in them are tripled. Victorious MAX is a separate remake at 96.95% that pays on about 43% of spins and raises the free-spins multiplier to x6; NetEnt’s own page gives its top win as both 7,000x and 4,900x, so the game’s help screen is the place to confirm it.
Immortal Romance
The vampire love story that still draws players more than a decade on. Its top version returns 96.86%, and casinos also run 94.12% and 92.1% versions. In the base game, Wild Desire can turn up to five reels wild at random. Scatters open the Chamber of Spins, where four character rounds, each with its own feature, unlock as you trigger it more often. Wins come on about 31% of spins and the ceiling is 12,150x. There are more fanged heroes on our vampire slots page.
Thunderstruck II
The Norse sequel returns 96.65% at its top setting, with versions around 94.50% elsewhere, and pays up to 8,000x. Its Great Hall of Spins starts with Valkyrie’s free spins, then opens Loki’s on the fifth trigger, Odin’s on the tenth and Thor’s on the fifteenth, and that progress is saved at each casino separately. Wildstorm can turn up to five reels wild, wilds double any win they help make, and Thor’s round adds Rolling Reels. More gods and longships are on our Norse and Viking slots page.
Twin Spin
Every spin starts with two identical reels side by side, and they can grow to three, four or all five matching reels before they stop. There are no free spins and no scatters: the twin reels are the whole feature. It returns 96.55%, though one operator runs a 92.02% version, and pays on about 28% of spins. Our Twin Spin guide goes into more detail.
Jurassic World
The film licence returns 95.45% at medium volatility and pays on about 31% of spins. Most listings give a 14,000x top win; the 1,000x figure some quote is only the cap of its Indominus feature. Wild symbols can stack ten high, and the free spins offer a choice of dinosaur rounds. Other prehistoric games sit on our dinosaur slots page.
How Ways Change What Counts as a Win
On a payline game, a symbol only counts if it sits on one of the drawn lines, so three matching symbols in the wrong rows pay nothing. On a 243 ways game, any row on the next reel carries the chain on, so more of what lands can form part of a win. You can compare this with fixed lines on stepped grids on our 192 payline slots page.
That does not make the games more generous. The studios scale the symbol prizes to match, which is why the returns here sit between 95.45% and 96.88%, the same range as many line games. Megaways slots use the same counting idea but change the rows on every spin, reaching up to 117,649 routes on six reels.
What a Spin Covers on These Games
Because all 243 routes are always live, there is no line count to set: the stake covers every way at once. Twin Spin and Victorious start at 25p a spin, and the three Games Global titles at 30p.
No bonus buy is sold for any of the five in Britain. GB versions carry none, so every feature here has to come from the reels.
Where the Version Gap Costs Most
Immortal Romance has the widest spread of versions in this group. Over 600 spins at the £5 limit for players aged 25 and over, about an hour of play, the 96.86% version averages a cost of around £94 and the 92.1% version around £237. At the £2 limit for players aged 18 to 24, the same versions come to roughly £38 and £95.
Twin Spin at £1 a spin averages about £21 an hour on 96.55% and £48 on its 92.02% version. Real sessions swing far from these averages either way, which is why checking the figure in the game’s rules before staking pays off.
