Free slot: Second Thunder

Second Thunder Slot Overview

The 6x5 reel grid of Second Thunder packs an energetic 50 fixed paylines; wild fields, a feature row, and free spins keep modifiers active throughout the bonus round.

This Ragnarök-themed slot has a crazy, supercharged gameplay with up to x10 multipliers and a maximum payout potential of 12,500x your bet. Keep reading to discover what to expect!

Basic Information

Developed in 2026 by Thunderkick, Second Thunder adopts a Viking theme and is set during Ragnarök; the end of the world as described by Norse mythology. In this game, you can place a bet from €0.10 all the way up to €100.

Second Thunder has a default RTP of 94.20% and is classified as a high volatility slot machine, where big wins do not happen often, but when they do, payouts can reach exponential heights. If you enjoy games that have mythological themes coupled with sporadic explosive features, you are going to like this game.

Theme and Graphics

The visual style of Second Thunder is dark and draws upon the idea of Ragnarök; the Norse mythical apocalypse. The snowcapped mountains and hazy skies greatly enhance the feeling of an oncoming battle where gods will be fighting against each other.

It's extremely polished graphic presentations of flash effects from the lightning give glowing wild effects and very bright and colorful symbols that contrast well with the dark and shadowy backgrounds. You will also experience tremendous auditory presentation through sounds such as deep and thunderous percussion, rumbling thunder, clashing of metal and sounds of chaos.

RTP and Volatility

With an RTP of 94.20%, Second Thunder falls below the average of many current video slots; however, this figure is consistent with many of the titles released by Thunderkick. 

This game is also considered to be of high volatility; payouts are less frequent, however, when the bonuses and multipliers land together, the payouts can be much larger than others. 

Due to the high volatility rating, this slot machine will appeal to players that are comfortable with longer waiting periods, but have the chance to win much larger payouts during bonus combinations or Free Spins. 

Symbols and Payouts

The Nine symbols in the Second Thunder slot all represent Viking mythology and life on the battleground. 

The low-value symbols are Helmets, Hailbands, Horns, and Shields. These pay 0.6x to 0.8x your bet for 6 matching symbols.

The higher-value symbols are Eagles, Serpents, Boars, Wolves, and Viking warriors. These pay 1.4x to 10x your bet for 6 matching symbols.

How to Play the Slot

It is easy to play this game; just select your bet range from €0.10 to €100 using the bet controls, and then click 'Spin' to begin. You can also use the Autoplay function for ongoing gameplay. 

To create a winning combination, you will need to get 3 to 6 matching symbols on adjacent reels starting from reel 1 over the 50 fixed paylines.

Game Mechanics 

Second Thunder features a classic 6x5 reel layout with a 50-line payline system. The payouts for winning spins will be automatically calculated immediately after winning spins; this is done without cascading payouts.

Above the reels is a row called the Feature Row; this row can randomly replace Wilds as well as add Scatters and can provide reel multipliers of up to x10 on each spin.

Featured Symbols

• Scatter Symbols: The Free Spins bonus round will be triggered if landing a minimum of 3 Scatter symbols. More Scatter symbols will create larger amounts of Free Spins.

Second Thunder Features and Bonuses

The Feature Row cash award modifiers include Wilds, Multipliers, and a Feature Row. The Feature Row provides persistent reward modifiers when a player is in Free Spins rounds, increasing the potential payout.

Free Spins

For 3 Scatter symbols, you will receive 5 Free Spins; for each additional scatter symbol, there will be an additional 2 Free Spins added to your total.

During Free Spins, the Feature Row will still be active on each spin producing Wild symbols, multipliers, and additional Scatter Symbols.

Wild Field

The game has the ability to create rectangular Wild Fields on the playing field between two Wilds that land on separate reels, which will turn the symbols between the two symbols into Wilds and potentially result in large payouts when completing a line win.  

Wild Fields can be created on multiple reels at once, which helps to create the majority of the base game and Free Spins payouts.

Bonus Buy Feature

Players have the ability to purchase bonus features by paying either smaller multipliers to have their Free Spins feature triggered or by paying up to 75x their bet to access Free Spins directly. The RTP remains the same for the buy feature.

Play Options

Placing a bet in Second Thunder can vary depending on how a player wants to play. Some casinos will offer a demo version of the game while others will only have a real money version. 

The casinos recommended on this page offer you both gameplay options. Take a look at how each compare.

Play for Real Money or Try the Demo

Playing the demo version of the game first will give you a good idea of the frequency at which the Feature Row of symbols will hit and also the way Wild Fields grow on the reels. 

When switching to the real money version, you will gain access to the full potential of 12,500x your bet. Before you play, make sure to check the terms and conditions of the casino you choose.

Demo Features and Mobile Compatibility

Designed with modern HTML5 technology, you will experience fast, responsive gameplay with no issues across desktop, tablets, and all mobile devices, with consistent performance regardless of how long you have played.

To enable you to play-as-you-go, this slot works well on Android, iOS and Windows mobile devices, and switches easily from large to small screens. 

Second Thunder Compared

Second Thunder opts for darker visuals, a high level of volatility, and explosive Wild mechanics over cascading systems or persistent multipliers associated with many other mythology-based slot games. The combination of a Feature Row and Wild Field creates moments of high impact versus regular incremental wins.

Similar Slots You Might Like

• Vikings Go Berzerk (Yggdrasil): A classic Viking-themed slot built around rage meters and expanding Wild Free Spins. It carries a higher RTP of 96.10% but a significantly lower maximum win potential of 8,000x your bet.

• Thunderstruck II (Microgaming): A mythology-inspired slot with iconic expanding Wilds across multiple Free Spins rounds. It features a 96.65% RTP and a max win potential of around 8,000x your bet, giving the slot a steadier medium-volatility gameplay.

• Pink Elephants 2 (Thunderkick): A volatile Thunderkick release with stacked Wilds and surreal visuals. It runs at a 96.10% RTP with a maximum win potential of 6,000x your bet, making it a playful, less intense slot game.

Summary & Final Verdict

The gritty feel of Norse mythology in Second Thunder is enhanced by the use of high-impact Wild mechanics and sudden multiplier bursts that occur throughout gameplay. The high volatility and low level of RTP will require you to have patience.

However, the potential upside is the maximum payout of 12,500x your bet. The slot has been designed in such a way that it remains engaging through its dark look, responsive performance, and consistent use of bonus features.

If you're interested in a mythology-themed and feature-heavy slot games, then you should add Second Thunder to your list of games.