The original Thunderstruck video slot was one of the very first games to put Microgaming on its trajectory towards becoming the highly respected, longest-surviving software house it is today; this is a company that has been producing slots for almost three decades now. As far as the vital statistics go, this is a nine-liner that has an RTP of 96.10% and a stated maximum win of 10,000x your bet
The Thunderstruck slot game is so old, its exact release date is lost to time; it was around the end of 2003, however. I don’t want to sound like an ancient relic, but this is a game from an altogether different time – an era when slots didn’t need to be filled with endless bonus rounds or require complicated rules to wade through before you began to spin the reels. No, the Thunderstruck video slot is a product of a time when 15 free spins and a 3x multiplier combined with a high-paying top symbol was all you needed for a smash hit.
This title was such a hit that Microgaming would later create countless clones of Thunderstruck, reusing the mechanics and math model in games designed for every demographic. Why not give it a try here, using our free demo slot of the game?
| Provider | Microgaming |
| Reels | 5 |
| Rows | 3 |
| Paylines | 9 |
| Bonus Rounds | 1 |
| Bet Range | 0.15 - 45 |
| Volatility | High |
| RTP | 96.10% |
| Our Rating | 8.7 |
Thunderstruck Slot Casino Bonuses
Thunderstruck Slot Free Play
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Thunderstruck Slot Theme, Stakes, Pays & Symbols
Thor, the Norse god of Thunder, has featured in dozens of slot games over the years. Every developer has had a crack at one time or another – from Playtech’s self-titled Thor to Red Tiger’s Thor’s Vengeance, Microgaming undoubtedly started something big with Thunderstruck. The game was re-released a few years ago, as Adobe’s Flash was phased out and replaced with HTML5. Microgaming chose to retain the original graphics, so it looks a little old by modern standards. The sound is also relatively basic, but underneath lies a game that is just as much fun as it always was.
The top symbol in the Thunderstruck slot is the Thor Wild, which returns 10,000x your line bet for a full line of five. In the original Flash version of the game, it was possible to play with a single pay line if you wanted to. This was notable because a player had realized that by playing on one line, it was possible to win €300.00 from a one cent bet during the bonus round – far higher than the advertised maximum win. The wild is an outlier though, as the next three highest symbols – Thor’s Hammer, the Castle, and the Lightning/Horn pay just 750x, 400x, and 250x your line bet for a five-of-a-kind respectively. These figures can be tripled during free spins, then doubled again if a wild forms part of the winning line.
Thunderstruck has wide betting range to suit players of all levels. The betting range starts at €0.09 per spin and goes all the way up to €45.00 per spin at some casinos. All of these stake sizes can be enjoyed with a very respectable game RTP of 96.10%.
Base Game & Modifiers
The base game of the Thunderstruck slot game is typical of the time; a five-by-three-reel set, nine paylines, and a single set of scatters that are present on all five reels. Any winning combination that includes one or more wilds is doubled in value. Sadly, this doesn’t apply to a full line of the wild symbols themselves!
On the other hand, it does double the return of Thor’s Hammer to 1,500x your line bet – a respectable base game hit. That’s your lot here though, folks – there are no modifiers or other bonus features to speak of.
Thunderstruck Slot Bonus Features
The scatter is instantly spotted whenever two or more appear, as the picture of a ram is accompanied by flashes of lightning which instantly grab your attention. Two rams return double your stake – not much, but a small consolation for missing out on the feature. Hit all five though and you’ll be celebrating before your free spins even start – the payoff is a chunky 500x your total stake.
Free Spins Feature
Three or more scattered rams will start the free spins feature. This consists of fifteen spins with a 3x multiplier, making payments of 4,500x, 2,400x, and 1,500x possible from the higher paying picture symbols we discussed earlier.
Of course, the ultimate goal is to hit a full line of wilds during the free spins feature, as this returns 30,000x your line bet. The free spins can be retriggered should three more rams appear during your bonus round and seems to be a somewhat common occurrence in this game.
When the Thunderstruck video slot was released, bonus reels would often feature extra scatter symbols to increase the likelihood of a retrigger. I’ve regularly seen my remaining free spins counter exceed fifty – how many modern slots can you say that about!
Thunderstruck Slot Review Final Thoughts
What can we say? Thunderstruck was a classic in its day, and it still holds up in 2022. Sure, the graphics are showing their age by now, but in my view that is all part of the charm of playing the game today. It’s easy to see why players loved this game almost two decades ago, and in terms of overall revenue, Thunderstruck is one of the most popular online slots ever to be released. Female players might prefer the pretty and pink “Ladies Night” clone, though I suspect there are plenty who will be just as happy sticking with this theme too.
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