Thunderstruck (Microgaming)
Online Slot Free Game Thunderstruck by Microgaming
Thunderstruck Slot by Microgaming

Online Game Review of Thunderstruck by Microgaming

The Thunderstruck online slot designed by Microgaming is available to play for free. The slot is themed to the god Thor of the Scandinavian mythology. The game window consists of five reels with fifteen boxes. Symbols form winning combinations on nine active paylines. In addition to the regular symbols, there are symbols with special options: Wild and Scatter. The one can complement winning combinations, doubling the payout. The other, appearing in three symbols can open the round of 15 free spins, tripling the payout. Besides, there is the gambling round, where you need to guess the colour or the suit of the playing card.

Game Information
Type Online Slots
Rows 3
THEME History
Features Freespins, Gamble Round
Developer Microgaming
Lines 9
Reels 5
Games played 66
Game Rating

Thunderstruck Free Spins

The slot features the bonus round that is launched by three, four or five Scatters as rams, appearing in the game window simultaneously. After calculating payouts for winning combinations, 15 free spins begin, during which all wins are multiplied by an additional multiplier of x3. You can win up to 15 free spins. You need to collect three or more symbols with rams. The additional free spins will be added to those that haven´t yet been used. After the bonus round ends, the accumulated winnings are transferred to your main balance, and you returns to the main mode.

Symbols and Multipliers

The Thunderstruck slot comes with 11 regular and 2 special symbols. Regular symbols form winning combinations starting from the leftmost reel and are on the adjacent reels. Two or more matching symbols on one payline produce the following multipliers for the line bet:

  • Thor's hammer — x3, x25, x100 or x750 for two, three, four or five symbols, respectively
  • Hand with arms — x2, x25, x100 or x750
  • Castle — x15, x100 or x400 for three, four or five symbols
  • Lightening — x10, x75 or x250
  • Horn — x10, x50 or x250
  • «А» — x10, x50 or x125
  • «К» — x5, x50 or x125
  • «Q», «J» or «10» — x5, x25 or x100
  • «9» — x2, x5, x25 or x100 for two, three, four or five symbols

All the winnings of the slot are deposited as credits. Apply the current line bet (in credits) by the corresponding multiplier to calculate the payout. The line bet depends on the chosen denomination and on the number of coins, bet on the payline. Please note, that only the highest combination on the payline pays. Winnings from all paylines are added up.

Special symbols include:

  • Thor is the Wild. It can replace any missing regular symbol in a winning combination. All combinations that includes the Wild symbol pays twice. Besides, the Wild can produce the payout by itself. Two, three, four or five of these symbols, appearing on one payline pay you 10, 200, 2,000 or 10,000 times your line bet
  • Icon with two rams is the Scatter. This symbol is not associated with paylines. Collect three Scatters anywhere on the reels in the game window to initiate 15 free spins with the tripled multiplier. Combinations of Scatters pays in coins. The size of your prize is calculated by using your total bet for a spin and multipliers — x2, x5, x20 and x500 for two, three, four or five symbols, respectively 

Gambling Round

You can play the gambling round after each successful spin in the Thunderstruck slot. Click the Gamble button, that appears on the control panel after calculating payout for a spin to confirm your participation in this round. Click the Collect button to refuse the game. In this case, all the winnings will simply be transferred to your main balance and you continue the usual spins.

The rules of the gambling round are quite simple — guess the colour or the suit of the card. In the first case, the correct answer will double the amount that you staked. In the second case — your winnings will be quadrupled. You can fix your guess about face-down card by using Red or Black button. It is found at the bottom of the game screen. To the right you can see buttons with suits: diamonds, hearts, clubs and spades. The Colour Pays and Suit Pays sections displays the intentional winnings for the correct guess.

The process of guessing the colour or suit of the card continues until the limit of the gambling round is spent, or until you make a mistake. If your guess is incorrect, your entire winnings are lost and you return to the main game.

Thunderstruck Game Principles

Initially, you get 2,000 credits in the Thunderstruck slot. To make a bet per line you use demo coins. Your coin value may vary in the range between 0,01 and 1 credits. Use «+» and «-» buttons on the control panel to set this value. Please note, that the size of your win depends on this value.

You can control the slot using the control panel, that works in two modes: regular and expert. Use the Expert/Regular button to switch the modes. The Regular control panel includes the following buttons:

  • The Select Lines button sets the number of active paylines (from 1 to 9)
  • The Select Coins button sets the bet per line (from 1 to 5 coins)
  • Bet Max — activates all paylines with the maximum bet and initiate one spin
  • Spin — launches one single spin with your pre-set values

The console also features info windows:

  • Demo Credits — displays the current amount of credits in your account
  • Lines — shows the number of active paylines
  • Coins — displays the size of your bet per line
  • Bet — your total bet per spin in credits
  • Win — displays the amount of the most recent reward in credits

The Expert control panel, you will see some new buttons to activate auto spins. They include:

  • 5x — initiates five auto spins
  • 10x — initiates ten auto spins
  • Auto Play — opens an additional window with the advanced options of the Autoplay mode. Here you can choose the desired number of auto spins (from 5 to 500), the interval between each spin, conditions that stop the session, etc

Also, there you will find new Spin section, that shows a countdown of remaining spins. During auto spins you cannot change the bet or the number of paylines. Click the Stop button, that appears instead of Spin to stop auto spins.

Use the View Payout button, presented in two copies under the reels to open the section with the description of bonuses and the list of multipliers for winning combinations. Click the Help button on the control panel to open the rules of the slot. You can see the additional loudspeaker button in the top right corner of the screen. It allows you to turn off the sound effects in the slot.

Thunderstruck is a slot by Microgaming. Advantages of this slot are high multipliers of payouts, special symbols, gambling round, free spins and additional multipliers. It's worth noting the simple interface of the slot and the possibility of switching between regular and expert modes. Looking for a little more excitement to add to your game? Why not enjoy a little flutter at an online casino and learn more about how to play for real money.