Thunderstruck II Remastered Slot Review
A cold hall of pewter pillars and engraved stone, lit pale blue, with the Thunderstruck II name chiselled into a riveted metal banner above the reels. This is a game that doesn’t give its best material away on a first visit: it saves its richest bonus rounds for players who come back, which makes it almost an oddity in a market where everything is available at once. The Norse setting is played straight, painted in sober realism rather than cartoon colour, and the restraint suits a slot with this much patience built into it.
What’s interesting about this remaster is how little of the old game’s architecture has been touched. Games Global have polished the frame and left the machinery alone, which is either respect or laziness depending on how fond you were of the original. It runs on a 5×4 grid with 243 ways to win, a 96.65% RTP and medium volatility, with stakes from 0.30 to 60 per spin.
Base Game & Features
Wins pay left to right from the first reel, with matching symbols needing to sit on adjacent reels across an enabled way. Multiple combinations for different symbols on the same way all pay out. Only the highest combination counts for the same symbol, and only one scatter win pays per spin.
There are three rules doing the quiet work in the base game, and each one shapes how a spin resolves:
- Matching symbols must sit next to each other on an enabled way, starting from reel one
- Different symbols winning on the same way all pay; the same symbol pays only its highest combination
- Scatter and bonus wins are added on top of regular wins
The wild, multiplier symbol substitutes for everything except the scatter, doubles the payout of any combination it completes, and forms its own winning combinations that aren’t multiplied. The scatter pays from anywhere, can’t be substituted by the wild, and triggers the bonus ladder. Neither symbol appears during the Wildstorm bonus. A bonus symbol, shown as a die reading “BONUS”, also lands on the reels as the entry point to the feature ladder.
Staking works on a fixed multiplier. A bet multiplier of 30 applies to every spin, so your chosen coin size times thirty is the total stake, and every payout in the paytable is displayed against your current bet. Scatter payouts scale with the total bet rather than the coin size, which is worth knowing when you’re sizing up a session.
Wildstorm Bonus
Wildstorm arrives at random and turns up to five reels entirely wild. That’s the whole feature. No scatters land during it, no free spins can be triggered, and the wild symbol itself stays off the reels, so the transformation is carried by the wild reels alone.
Five full wild reels on 243 ways is the kind of spin that pays for a session. It’s also the sort of thing that arrives when it arrives, and the game offers no control over timing.
Paytable Achievements
A long-running tracker highlights symbol combinations you’ve won, marking a symbol complete once every combination for it has landed. Achievements stay highlighted after you exit the game, so the record carries across sessions on the same account.
Not everything counts. Regular wins and regular symbol wins created in the Wildstorm bonus are logged. Wild substitute wins and free spins wins aren’t. The tracker may not be available in every version of the game.
Thunderstruck II Remastered Bonus Features & Free Spins
The bonus structure is a ladder. Landing three or more scatters activates the Great Hall of Spins, and every activation after that unlocks a new bonus game, until all four are open. Each awards free spins with its own additional feature, played at the last bet you placed, with winnings collected automatically at the end.
The four rounds, in the order you unlock them:
- Valkyrie – a 5x multiplier on all wins, retriggers allowed
- Loki – extra spins from scatters, plus a symbol on reel three that turns up to fifteen symbols wild
- Odin – Wild Raven transforms random symbols into wild multipliers worth up to 6x
- Thor – Rolling Reels with a multiplier that climbs to 5x
Once a round is unlocked it stays unlocked, so the early grind is a one-off cost rather than a recurring one. The bet carried into any bonus game is the last one you placed in the regular game, which makes bet discipline before a trigger worth a moment’s thought.
Valkyrie Bonus
The first rung and the simplest. All wins during the free spins are multiplied by five, and the round can be retriggered, with extra spins added to the remaining count. It’s the entry-level option and plays like one.
Loki Bonus
Loki adds two twists. Scatters during the free spins award extra spins, added to the running total, and the round retriggers. The scatter count sets the award:
- Two scatters – one extra free spin
- Three scatters – two extra free spins
- Four scatters – three extra free spins
- Five scatters – four extra free spins
Separately, one symbol on reel three transforms up to fifteen symbols into wilds. That transformed symbol pays the same as the wild’s own combinations, though without the 2x multiplier value.
Odin Bonus
Any win in Odin’s round activates the Wild Raven feature, transforming random symbols into wild, multiplier symbols worth up to 6x. The round can’t be retriggered, so the spins you start with are the whole of it.
Thor Bonus
Thor’s round is the deepest. Any win activates Rolling Reels: winning combinations are removed, symbols above shift down, and the process repeats until no win forms. Each consecutive win increases the multiplier by one, to a maximum of five, resetting to one when the run stops.
Scatter wins pay out and take part in the rolling reels here, which is also why the round can’t be retriggered. It’s a deliberate design choice: the cascades are the retrigger, in effect, and a long chain at a 5x multiplier is where this game’s biggest moments live.
Our Honest Verdict
Overall Rating: 7.8/10
Playing this is a long sit by the fire in Odin’s hall: steady, unhurried, with the good stuff arriving late and only for those who stay. The reason to choose it is that loyalty pays here in a way most modern slots don’t bother with. Unlock progress persists, so every trigger moves you closer to Thor’s cascades for good.
The best thing about it is that nothing is filler. Even the random Wildstorm runs through the same 243-way engine as everything else, so the whole game pulls in one direction. The worst is that the first hours are thin. Valkyrie‘s flat multiplier is a modest prize for the climb, and medium volatility won’t paper over that.
This suits the patient and the nostalgic, the sort of player who likes a game that remembers them. It doesn’t suit anyone after instant gratification, and there are faster routes to a big bonus round elsewhere. But for a slow evening and a long memory, the hall is still worth walking into.
Thunderstruck II Remastered FAQs
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What is the RTP of Thunderstruck II Remastered?
The RTP is 96.65%, a shade above the typical online slot. -
How do you unlock new bonus games in Thunderstruck II Remastered?
Each time you trigger the Great Hall of Spins it counts towards a total. After five sequential activations, a new bonus game is unlocked, until all four are available. -
What does the Wildstorm bonus do?
It strikes without warning and converts as many as five reels entirely to wilds. Neither the wild nor the scatter symbol lands while it runs, and free spins can’t be triggered from inside it. -
Which free spins rounds can be retriggered?
Valkyrie and Loki can both be retriggered, with extra spins added to the remaining count. Odin can’t be retriggered at all, and Thor can’t because scatter wins participate in the rolling reels. -
What does the Wild Raven feature do in the Odin bonus?
Any win during Odin’s free spins activates it, and random symbols are transformed into a wild, multiplier symbol. The multiplier can be worth up to 6x. The round itself can’t be retriggered. -
How does the Rolling Reels feature work in the Thor bonus?
After a payout, the winning symbols vanish and everything above drops into the gaps. New wins form, pay again at a higher multiplier, and drop again, until a refill produces nothing. The multiplier steps up by one per win in the chain, capped at five. -
Is Thunderstruck II Remastered high volatility?
No, it’s a medium volatility slot, with a hit frequency of 32.62%. -
What is the minimum and maximum bet on Thunderstruck II Remastered?
Stakes run from 0.30 to 60.00 per spin, on a fixed bet multiplier of 30.
