Second Thunder: Slot Overview

Across many belief systems worldwide, there’s a recurring idea of an apocalyptic, everything-ending catastrophe—often followed, encouragingly, by renewal. One of the most frequently used destruction-and-rebirth tales in online slots is Ragnarök from Norse mythology, and it sets the stage for Thunderkick’s release Second Thunder, where players face either devastating collapse or salvation depending on how luck falls.

The scene shows an army on the move—likely marching toward war—through a bleak, storm-lashed night. When the bonus round is triggered, the game announces that ‘Ragnarök has arrived’, confirming the journey toward a colossal clash between order and chaos that ends with the world’s destruction and the birth of a new one. Second Thunder channels this doom-laden vibe through its distinctive visuals, militaristic soundtrack, and the looming, hammer-bearing figure of Thor flickering in the background. It could have pushed the spectacle even further, but Second Thunder still offers a solid slice of Old Norse end-times drama.

Second Thunder heads into battle on a 6×5 grid with 50 paylines used to assess winning combinations. There’s plenty of flexibility on the wagering front, with a base stake range of $/€0.10 to $/€100. The math model is highly volatile, and the theoretical RTP is set at 94.2%.

The standard pay symbols include helms, axes, horns, shields, birds, serpents, warthogs, wolves, plus a character symbol. A win formed by 6 matching symbols pays between 0.6x to 10x the stake. The wild substitutes for every symbol except scatters. Wilds can land as single symbols on the reels or appear as 2-3 high stacks when delivered via the Feature Row. They can show up on all reels, and six wilds in a winning line return 10x the stake.

Second Thunder: Slot Features

Second Thunder includes a wild transformation modifier, a Feature Row that drops in different extras, a free spins bonus round, Bet+, and feature buys.

The Wild Feature

The Wild Feature kicks in when wilds land on 2 or more reels. They form a rectangular shape that converts all symbols to wilds inside the area. This field can grow up to 6 reels. The bonus game is able to trigger while a Wild Field is active.

Feature Row

Positioned above the reels, the Feature Row may randomly activate during the base game or remain active when Bet+ is used. When it’s on, it displays at least 1 wild or scatter and can also include multipliers of x2 to x10. If more than one multiplier lands on the same reel, their values are added together before the total is applied.

Bonus Game

Landing 3 scatters awards 5 free spins, and 2 additional free spins are added for every extra scatter. The Feature Row stays active on every free spin during the bonus game. Landing 3 or more scatters grants a full retrigger.

Bet+ & Feature Buys

The Bonus Boost and Bonus Boost Plus are priced at 1.5x and 3x, making each spin 2 and 5 times more likely to trigger free spins, respectively. Presence of Thor costs 15x and ensures the Feature Row is active on the opening spin, while 15x also purchases Thunderstorm, which guarantees a Wild Field on the initial spin. Lastly, for 75x the stake, players can buy direct entry into the free spins round.

Second Thunder: Slot Verdict

Recreating a final, no-holds-barred war between order and chaos—packed with gods, monsters, and giants—is a tall order for an online slot, but Thunderkick has made a respectable attempt. It’s not God of War, but it does convey the grim pressure of a battle where everything is at stake. Some accounts suggest ordinary humans fight in Ragnarök too, though why anyone would willingly enter a conflict involving Odin, Fenrir, Thor, Jörmungandr, Freyr, and Surtr is hard to say. Perhaps, if the day ever came, people wouldn’t get a choice. Players, however, do get to choose whether to spin Second Thunder, and there are fair arguments for charging into the fight—or staying safely on the sidelines.

On the upside, Second Thunder isn’t overloaded with features, yet the ones it has connect neatly. The Wild Field returns, previously seen in Archie O’Loggins and the Enchanted Masks, where it matched the cluster pays mechanic effectively. In Second Thunder, the Wild Field is elevated because any multiplier introduced by the Feature Row applies to all wins on that reel, and multiple multipliers on the same reel are combined by addition. That’s essentially the game’s high point—chasing fields and feeding multipliers into them, or simply enhancing standard wins. Outside of that interaction, gameplay could feel a little sluggish, and even with a 12,500x max win, making serious progress wasn’t easy—though that doesn’t mean it’s impossible.

Overall, Second Thunder’s moody visuals and stirring music build an enjoyably dark tone that gives the experience a mildly epic edge. The weighty presentation is supported by mechanics that can pay off, making it a fun pick for players prepared to weather a fictional Ragnarök across the reels. It does feel like Thunderkick could have pushed the theme harder, but Second Thunder should still satisfy the legion of Norse-themed enthusiasts.