12 Bolts of Thunder Slot Review

12 Bolts of Thunder by Thunderkick is another high-quality slot from the talented team of developers. Made in a mythical style, it delights with stunning graphics special effects, and good musical accompaniment.

The player is treated to free spins with the opportunity to win additional spins. The growing level of the multiplier will certainly be appreciated by the audience. Wild symbols successfully complement the excellent bonus mechanics. The maximum bet in the slot is not too high, only 100 euros, but the win can reach x30,000. 20 fixed lines and a familiar playing field will allow experienced players to quickly get comfortable with the game.

9.30 /10
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0.10 USD
Min bet
100 USD
Max bet
Max payout
Number of reels
Number of lines

Where to Play 12 Bolts of Thunder slot?

How to choose a good place to play? In the case of 12 Bolts of Thunder, the issue is resolved extremely simply. The slot developer, Thunderkick, opened access to its new product for partners 10 days before the official release. Naturally, only reliable and decent casinos, whose reputation there is no point in doubting, received such a bonus. Another important point is the set RTP level, which can always be found out. If its value is close to 96%, it means you can safely play in this casino!

Play Free 12 Bolts of Thunder Slot Demo

The demo version of a slot is a free testing mode provided by the developer along with the official software and does not require registration.

Playing the demo will allow you to get used to the new game as quickly as possible and clarify all its nuances in practice. This way, the user can move on to real bets in a real casino as quickly as possible. The time spent on the demo will pay off, because the player will understand what is happening on the screen, and not just rely on luck. Moreover, 12 Bolts of Thunder contains original mechanics, which are best familiarized with in advance and without risks.

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Play for real T&C applies, 18+

Verified Online casino with 12 Bolts of Thunder slot

The Casinoz website will be happy to help you find casinos that best suit each user’s requirements. A rating is maintained and constantly updated here, which contains a lot of useful information. The list includes almost all the top casinos that offer real money games. Reviews have been compiled for each of them, there are reviews with ratings, descriptions of services, bonuses, supported methods of replenishment with withdrawal, that is, everything that a player might need.

Total 6

How to Play 12 Bolts of Thunder slot online

In 12 Bolts of Thunder, the playing field consists of 5 reels with 4 cells each and 20 Betways. Accounting for combinations starts from three symbols going from left to right (except for special ones). The maximum bet is 100 euros, and the largest available win is x30,000. The slot includes free spins with bonuses and its own Multipliers system.

12 Bolts of Thunder Symbols, Wild, Scatter

  • The Wild symbol performs its usual task of replacing the missing symbols for a combination (except for special symbols). Does not have bet multiplication.

  • The Hammer symbol appears only on reels 2, 3, and 4. Depending on the quantity in the combination, it activates the Multipliers table.

  • The Scatter symbol, also known as Bonus, triggers free spins with the original mechanics of increasing the multiplier.

  • Wild symbol
  • Scatter symbol
  • Hammer symbol
  • 777 symbol
  • BAR symbol
  • Bell symbol
  • Horseshoes symbol
  • A Symbol
  • K Symbol
  • Q Symbol
  • J Symbol

12 Bolts of Thunder Bonus games

  • Hammer Wins Feature. The appearance of 4 or more Hammer symbols on the screen brings the bet multiplied in the current round according to a special table. For a normal game, the values range from x2 to x1000 (directly depends on the number of dropped symbols).

  • Bonus Game Feature. All Hammer Wins increase the level of the Multipliers table until attempts are completed. The maximum level is 5th. Also rewards you with 3 extra spins.

  • Buy Feature. Provides the opportunity to purchase a bonus game for money. Sometimes this option helps change the current situation in the game.

12 Bolts of Thunder slot free spins

For 3 Scatter symbols, you get 6 free spins. The feature has no retrigger, but adds 3 attempts for each Hammer Wins. It is in Free Spins that the maximum wins are available.


There are no jackpots in the slot, but with a probable win of x30,000, they are not needed.

12 Bolts of Thunder RTP, Volatility & Hit Frequency

  • The RTP level in 12 Bolts of Thunder is set by the casino by choosing one of the fixed values built in by the manufacturer — 96.15%, 94.15%, 92.15%, 90.15%, and 87.15%. You can find out the current indicator in the game information menu. The closer the number is to 96%, the better it is for the player.

  • The probability of win is slightly above average. Despite the high variance, combinations appear quite often.

  • Volatility is high. The risks of losing all your money are great, but the possibility of a big win completely compensates for them.

Strategy: How to Win at 12 Bolts of Thunder slot

It is not possible to develop a strategy for slots. During rounds, random events occur here that are impossible to predict.

You can influence the game a little differently — buy bonuses, change bet sizes, and use betting systems. These little tricks sometimes help you break out of a bad streak and even change it to the exact opposite.

12 Bolts of Thunder Interface

The interface is extremely informative. In the center, there is a playing field with reels, and on the side of it there is a board with the multiplier level. Below are the buttons for setting the bet and the type of reel spin. The information and system menus are located in the upper right corner of the screen.

Before starting the game, you should:

  1. Study all the rules with bonus mechanics and the Paytable in the “i” menu.

  2. Try to put your knowledge into practice in the demo version.

  3. Select a bet in a game for money.

  4. Adjust everything for convenience — sound volume, spin methods. Play!

Mobile Compatibility

When playing on a mobile device, the main point was and remains the optimization of the slot. In this case, it is at its best, and the stuttering on the phone is felt even less than on an older PC. A more or less modern smartphone with iOS or Android will provide the opportunity to play 12 Bolts of Thunder everywhere and at any convenient time.

Should You Play 12 Bolts of Thunder Slot for Real Money?

Thunderkick's 12 Bolts of Thunder slot is worthy of players' attention. It is quite popular, is at the top of world rankings, occupying leading positions in many countries. This success was achieved thanks to the excellent combination of bonus features and big wins. The game is interesting, has a great design, and it really deserves high marks.

Frequently asked Questions

How many reel lines are there in the 12 Bolts of Thunder slot?

Playing field 5x4, with 20 standard lines.

What is the RTP of 12 Bolts of Thunder by Thunderkick?

The developer has set the following values for the casino to select: 96.15%, 94.15%, 92.15%, 90.15% and 87.15%. The first two are the most widespread.

What is the maximum multiplier in 12 Bolts of Thunder?

Simply huge, x30000. True, this is not compensated by the highest maximum bet, which is only 100 euros.

  • Great graphics
  • Availability of multipliers
  • Interesting gameplay
  • Presence of free spins
  • High volatility
  • The slot is a little heavy for outdated gadgets
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Main info
Type of game Video slots
Manufacturer Thunderkick
Theme Adventure, Treasure, Luck, Ancient Civilizations, Fantasy, Folklore
Min bet 0.10 USD
Max bet 100 USD
RTP 96.15%
Max multiplication 30000 : 1
Is free test available Yes
Mobile version Yes
Issue date January 31, 2024
Progressive jackpot No
Reels number 5
Lines number 20
Wilds No
Scatter Yes
Volatility High
3D slot Yes
Respins Yes
Freespins Yes
Bet line 0.005 - 5
Bonus games Free Spins, Bonus Game, Stacked Symbols, Re-Spin