Second Thunder Slot Review
Vikings and vandalism. That’s what we’re going to talk about next. 👇
Sometime around the 10th century, a Norse warrior in the Byzantine Emperor's bodyguard squad (yes, Viking bodyguards – the Varangian Guard) got bored on shift in Constantinople. So he carved his name into the marble railing of the Hagia Sophia.
Bro treated one of the most sacred buildings ever constructed like the back of a bus seat. 😂 Nobody found it until 1964. Halfdan's vandalism outlasted entire civilizations, which is honestly more legacy than most of us will ever manage. 🫡
This is Second Thunder slot, and it comes from Thunderkick. Zero subtlety, and I kind of love it for that.
Gameplay
The 6x5 grid has a stormy Viking battlefield behind it, armies clashing below. It's moody but without being over-designed.
The game has 50 paylines. RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.
RTP needs to be considered in conjunction with a game’s volatility rate. is 94.2%, volatility is high, and the max multiplier is 12,500x. The max win is $250,000, with bets running from $0.10 to $20. Fiat only, but Australian dollars aren't supported.
The low-paying symbols are all Viking gear. A helmet and an axe share the bottom at 0.6x for 6-of-a-kind, while a horn and a shield come in slightly higher at 0.8x.
Five high-paying symbols take over from there. An eagle (1.4x), dragon (1.5x), and hog (1.6x) are bunched together with barely any daylight between them. The wolf pulls ahead at 2x, but we're still not talking real money on any of these.
Then there's the Berserker: 10x for 6-of-a-kind, 5x for 5, 2x for 4. He's doing all the heavy lifting in this paytable.
The Wild matches the Berserker at 10x for 6-of-a-kind and replaces everything except the Scatter. It can land solo or drop in 2-3 high stacks from the Feature Row.
Features
FEATURE ROW:
Above the main grid sits a row of extra symbols (look closely, they’re very dark and easy to miss) that randomly activate during base game spins.
When this thing fires, it drops symbols onto the reels (anything except Wilds or Scatters) and can include multipliers of 2x, 3x, 5x, or 15x.
If multiple multipliers land on the same Feature Row, they're added together. That's where the math starts getting beneficial.
WILD FIELD:
When Wilds land on 2 or more reels, the game draws a rectangle around them and turns everything inside into Wilds. The field can stretch across all 6 reels.
The Bonus Game, which I’ll chat about next, can trigger while a Wild Field is active, which is a nice touch.
BONUS GAME:
Three or more Scatters get you in with 5 Free Spins. Each extra Scatter beyond 3 adds 2 more.
Here's what changes: the Feature Row is active on every single spin during the Bonus Game. It's not random like in the base game – it fires every time.
That means more drops, more Wilds, and multipliers that actually stack. Landing 3 or more Scatters again during Free Spins awards a full retrigger.
BUY BONUS:
Four Ante BetAn Ante Bet is an option that costs a percentage of your bet but increases your chances of landing triggering symbols that initiate a feature. options are available under the BET+ menu.
Bonus Boost costs 1.5x your base bet and makes each spin 2 times more likely to trigger the Bonus Game.
Bonus Boost Plus jumps to 3x your base bet for 5 times the trigger likelihood.
Presence of Thor costs 15x your base bet and guarantees the Feature Row is active on the initial spin.
Thunderstorm also costs 15x and guarantees a Wild Field on the initial spin.
Performance
Hundreds of spins across all my devices and swapping between browsers yielded no issues.
Maximum Win
At the max multiplier of 12,500x, you can scoop the max win of $250,000 when playing at the maximum bet of $20. The minimum bet is $0.10.
Conclusion
The Bonus Game is where you can score some shekels. The Feature Row being guaranteed on every Free Spin is the engine. Stacking multipliers on top of Wild Field expansions is what drives this slot toward its 12,500x ceiling.
Now let’s jump into the ante bet and bonus buy options. The Bonus Boost at 1.5x is the grinder's pick – a small premium for 2x the Bonus Game trigger rate.
Bonus Boost Plus at 3x is the step up if you want 5x the trigger rate and can stomach tripling your bet every spin.
Presence of Thor and Thunderstorm cost a fair amount. You're paying a massive premium for a single-spin boost. These are for players who want to set up a specific opening play, not a sustained edge.
Low-risk players should stick with Bonus Boost at 1.5x – it's the cheapest way to speed up Bonus Game access.
Balanced players can rotate between Bonus Boost and Bonus Boost Plus depending on how a session's running. High-risk players are better off with the 75x Buy Bonus than burning 15x per spin on Presence of Thor or Thunderstorm.
Second Thunder slot is a high-volatility grinder built for players who can stomach lean sessions for explosive Free Spins upside. If you want consistent returns, walk. If you're chasing stacking multipliers and expanding Wild Fields, the machinery is here.
Slot Details
Game Provider: Thunderkick
Type: Video Slots
PaylinesPaylines are preset lines that run across the reels, and when you land matching symbols on them, that will result in a payout. The more paylines, the more ways you can win, but also the higher your bet per spin.: 50
RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.
RTP needs to be considered in conjunction with a game’s volatility rate.: 94.2%
Volatility RateSlot games can have low, medium, high, or extremely high volatility rates (or a combination thereof).
The less volatile the game, the more often it should pay out, but the lower the amount, the less the payout, as this is in keeping with the risk you’re taking. Volatility rate should be considered in conjunction with a game’s RTP.: High
Bonus Round: No
Progressive: No
Free Rounds: Free Spins
Max Multiplier: 12,500x
Max Win: $250,000
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