Second Thunder (Thunderkick) – Slot Review
Second Thunder by Thunderkick is themed around Norse mythology and Viking warfare, drawing inspiration from ancient gods, heroic beasts, and the raw power of thunder. The game’s name and imagery suggest a world ruled by storms and battle, where strength, honour, and elemental force shape the outcome of each spin.
Visually, the slot leans into a rugged, mythological aesthetic. Symbols such as helmets, axes, shields, horns, and fierce animals reflect a warrior culture rooted in combat and survival. The premium character symbol reinforces the presence of a powerful Viking hero or deity, while eagles, wolves, boars, and serpents add to the mythic atmosphere. Dark skies, stone textures, and flashes of lightning help create a dramatic and imposing backdrop.
The theme is reinforced through effects tied to thunder and power, particularly in features that flood the reels with Wilds and multipliers, echoing the idea of sudden, overwhelming force. Rather than focusing on narrative storytelling, Second Thunder captures the brutal energy of Viking legend—fast, forceful, and driven by the might of the gods.
Second Thunder is played on a 6×5 reel grid with 50 fixed paylines. This high-volatility slot has an RTP of 94.20% and a maximum win of 12,500x, with betting options ranging from £0.10 to £100.
Second Thunder Symbols & Pay Table
The game features 11 symbols in total. Four low-paying symbols are represented by Helmets, Axes, Horns, and Shields, while five premium symbols include Eagles, Snakes, Boars, Wolves, and a character symbol. Completing the set are the Wild and Bonus symbols. The character symbol and Wilds are the highest-paying, awarding 10x for five of a kind. Wilds substitute for all regular symbols and can appear either individually on the reels or as stacked symbols when introduced via special features.
Second Thunder Features & Mechanics
Wild Field Feature
The Wild Field Feature activates when Wilds land on three or more reels, forming a rectangular area that transforms all enclosed symbols into Wilds. This Wild Field can expand across the grid, covering up to all six reels, and may also contribute to triggering the Bonus Game.
Feature Row
Positioned above the reels, the Feature Row can activate randomly during base game spins or remain permanently active when using the Bet+ option. When active, it always contains at least one Wild or Scatter and may also display multipliers of 2x, 3x, 5x, or 10x. Reel multipliers apply to all wins on their respective reels and stack additively if multiple multipliers appear on the same reel.
Bonus Game
The Bonus Game is triggered by landing three or more Scatter symbols, awarding five free spins, with an additional two spins granted for each Scatter beyond the initial three. During Free Spins, the Feature Row remains active on every spin, increasing the likelihood of Wilds and multipliers. Landing three or more Scatters during the bonus triggers a full retrigger. The Bonus Game can also be purchased directly for 75x the selected stake.
Conclusion
Second Thunder delivers a hard-hitting, feature-driven experience that matches its Norse-inspired theme. The Wild Field mechanic and Feature Row add bursts of excitement, while the high volatility and strong max win potential keep the stakes high. Although the RTP is lower than average and gameplay can feel unforgiving at times, the slot rewards patience with explosive moments. Overall, Second Thunder is a solid choice for players who enjoy aggressive gameplay, powerful features, and Viking-style intensity. Be sure to try out this game on launch and check out our exclusive casino offers.