Triple Thunder

Play the Triple Thunder slot from Tom Horn and join forces with the three thunder gods and strike it rich in winnings.

Unique Game from Tom Horn Gaming

The game uses a grid layout the is 5 reels by 5 rows. Instead of standard paylines it uses a cluster style of wins. The cluster must be a minimum of 5 matching crystals.

Although the reels spin in a standard sort of way, winning symbols use a falling block style after the cluster wins are counted.

Triple Thunder Theme

A bit of the story line on the game is that you will be meeting the three mythological gods of thunder and lightning.

Thor, Zeus and Perun keep watch over the fortunes. You are tasked with collecting the magical crystals so you can have their protections and unlock more winnings.

Symbols and Characters

We have already briefly introduced you to the main characters of Thor, Zeus and Perun. The main game board symbols are colored crystals similar to gemstones.

triple thunder slot review image

Cluster Crystal Matches

Matching and clearing crystals results in winnings. To clear crystals they need to land in clusters of 6 or more. on exact color matches. As they clear the rows will shift downward filling those spots and possibly adding more wins.

  • Blue or Red crystals 5=0.2x, 6=0.3x, 7=0.4x, 8=0.5x, 9=0.6x, 10=0.7x, 11+=1x, 15+=3x.
  • Green or Gold crystals 5=0.3x, 6=0.4x, 7=0.5x, 8=0.6x, 9=0.8x, 10=0.9x, 11+=1.2x, 15+=4x.
  • Turquoise or Purple crystals 5=0.4x, 6=0.5x, 7=0.7x, 8=0.9x, 9=1.2x, 10=1.5x, 11+=2.5x, 15+=8x.

All wins are multiplied by the total bet. Clearly the turquoise and purple crystals are higher value according to the payout chart.

Triple Thunder Meter

During the course of the game the thunder gods build up power with wins based on the crystals associated with certain colors. You will see the progress made on the thunder power meter.

Once you fill the meters you unlock the gods special powers and more wins. The meter resets with each spin.

Thor’s Thunder Giant

Thor is unlocked when the meter fills with green and purple crystals. This unlocks the giant symbol on the reels.

Thor’s giant symbol can lead to huge wins so watch for his hammer to arrive.

Zeus Lightning Path

The Zeus meter will be filled with gold and red crystals. Zeus lightning path is then activated.

The Zeus lightning can zap symbols in the path of the bolts and change them to winning crystals.

Perun’s Stormy Wild

To activate Perun you will need to fill the meter with blue and green crystals. Perun stormy wild is activate and may increase wins.

Stormy wild symbol will change crystals to increase wins.

Scatter Symbol

The scatter symbol is a very special blue crystal that appears it may be encased in gold trim. Scatters act in a similar manner to cluster wins as they also are removed allowing crystals above to cascade in for replacement. They also count on a meter toward the free spin round.

Landing 5 or more scatters will trigger the Triple Thunder Free spins. At the start of the free spin round you will make a choice of one of the following by picking one of the three thunder gods.

  • Thor’s Thunder Giant free is 10 free spins with 2X multiplier.
  • Zeus Lightning Path free with 8 free spins and an 8x multiplier.
  • Perun’s Stormy Wild free with 4 free spins and a 4x multiplier.

Free spins will not re-activate during the round.

Per Spin Bets

Since all wins are paid as a multiplier of the per spin bet you may find you want to adjust this frequently. The range of bets start as low as €0.50 with a maximum of €100.00 per spin.

Return to Player at 92.02%

Most operators have listed the rtp on the Triple Thunder slot at 95.02%.

Easy to Conclude it is Fun

Admittedly it took a few spins until we realized the mechanics of the game. Once we understood the win and crystal clearing method the game was quite enjoyable. Scatter symbol seemed to land at appropriate times on some spins helping cascade the blocks we needed to reach some of the bonuses.

This game has a fair amount of action that takes place on the game board and does help keep your interest. Although it is a different kind of game from normal video slots it shows innovation in features that appeal to slot lovers.

Find this game at online casinos that have the Tom Horn Gaming software games.


Slots Palace

4.0 rating
100% up to €500 / 750 CAD
Mobile Available
Progressive Jackpots
Live Dealer Games
18+ Terms and Conditions ApplySee casino site for more information. Please gamble responsibly. 18+


Game Overview

Game Name
Triple Thunder
3.5 rating
Game Type
Slot Machine
Game Theme
Myhtological Gods of Thunder and Lightning
Software Developer
Tom Horn Gaming
Date Released
March 2, 2023
Number of Reels
5 Reels
Number of Paylines
Progressive Jackpots
Cascading Symbols
Free Spins
Bonus Rounds
Bet Limits
€ 0.50 up to € 100.00 Per Spin
95.02 %

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