Bonus Rounds: Free Spins, King Strike

Big Thunder is a video slot from Ainsworth Technologies, and it’s one of their most popular titles, with millions of players playing the slot each year. Set deep within the Jungle, Big Thunder uses 5 reels, and 20 pay-lines, and offers treasure rewards for those lucky players, alongside up to 30 free spins, in the lucrative bonus round! Big Thunder is an online slot created by Ainsworth that is built around a 5-reel, 3-row format. There are 20 fixed paylines in play. The game has an RTP of 96.27% and features include free-spins, wild multipliers and a 'pick me bonus'. Big Thunder is a slot machine by Ainsworth.According to the number of players searching for it, Big Thunder is not a very popular slot. Still, that doesn't necessarily mean that it's bad, so give it a try and see for yourself, or browse popular casino games.

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Bet/Line

You can find the Bet option in Big Thunder slot when you click on the settings button below reel one. You can set your bet for the spin by moving the slider right or left. If you want to increase your bet for the spins, move the slider right or move it left if you want to decrease the bet. If you want to play with the maximum bet per line possible, just click on the rightmost part of the slider line.

Lines

As with the Bet option, you can find the Lines option when you click on the settings button below reel one. Big Thunder slot has 30 paylines and you can activate anywhere between one and 30 paylines. You can do this by moving the slider right or left. If you want to increase the number of active paylines, move the slider to the right or move it to the left if you want to decrease it. If you want to play with the maximum number of active paylines in a click, just click on the rightmost part of the slider line.

Start

Once you have decided on your total bet for the spin, you can set off the reel set of Big Thunder by pressing the button with two circular arrows in the bottom right corner of the screen.

Autoplay

If you want to play the game without pressing the spin button after each round, you can always use the Autoplay button. When you press the “+” button on the left of the spin button, a new slider appears in the middle of the screen where you can select the number of rounds to be played automatically. You can select 10, 25, 50, 75 or 100 rounds to be played automatically. Once you’ve selected the number of rounds, click on the close button and press the spin button to start the autoplay.

Paytable

If you want to find out more information about the symbol payouts, as well as information on the bonus features and the rules in general, click on the settings button below reel one and then on the “i” button on the new screen.

Bonus Features

Free Spins Bonus

This feature is triggered by landing three or more of the Big Thunder scatters anywhere in view. When this happens, you are awarded 15 free spins. Landing three more scatters will get you extra five free spins. The sixth reel comes into play here because it will multiply each win by 3x or 5x.

King Strike Bonus

The jackpot prizes in the game are awarded in a certain way. So, for the Mini prize, you need to land five high values with wilds and the crown on reel six, for the Minor, five high values with wilds and the crown on reel six, for the Maxi prize, five low values with no wilds and the crown on reel six, and for the Major Prize, you need to land five high values in a winning combo without wilds and the crown on reel six.

Game Features

Lines – 30
Min Bet – 0.01
Max Bet – 100.00
RTP – 94.38%

Getting Started

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While Big Thunder has a pretty simple look and feel to it overall, there are some features that may be a bit confusing to players who haven’t played the game before. The game uses a bonus bet system that gives you more chances to win. Here’s a quick rundown of how the Big Thunder casino game works:

• There are five reels and three rows for a total of 15 symbols on the reels after each spin.
• This game has 30 fixed paylines.
• Payouts are made on matches of 3 or more symbols of a kind on a payline.
• A King Strike symbol appears on a separate sixth reel and gives you a chance at larger King Strike wins. These wins are €5, €10, €25 and €100.
• The “+” button next to the spin button allows you to automatically play up to 25 spins or play until you’ve won or lost a certain amount.

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Features & Overview

Big Thunder is a nice simple slot game and the bonus bets feature is great, but it follows in the footsteps of many of Ainsworth’s games with the lack of presentation. There aren’t a lot of sounds in the game and the graphics look a bit cookie cutter if you’ve played other Ainsworth poker machines.

Aside from this, the average player should be happy with Big Thunder. It’s a pretty basic slot game and that’s reflected in the interface. You can find detailed information about payouts and features by clicking the settings button. Another nice feature of Big Thunder is the ability to bet small. You can bet as little as €0.01 per line for a total minimum bet of €0.30, which is perfect if you don’t want to lose too much.

Bonus Rounds

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There is a Bonus Reel feature in Big Thunder which is triggered when three Big Thunder symbols appear anywhere on the board. During this feature, there is an extra reel with x3 and x5 multiplier symbols and the Big Thunder symbol. When you land one of these symbols on the bonus reel with a win, your win will be multiplied. This feature is active for 15 spins no matter how many symbols you land to trigger it, although you can win an additional 5 spins for landing 3 Big Thunder symbols during the feature.

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The King Strike bonus is sort of an addition to the standard payline wins. These wins only occur when you get a payline win with no substitute symbols and a King Strike symbol appears on the bonus reel to the right. Only payline wins with five of a kind will trigger the King Strike bonus, and the payout will depend on the symbol. You can win €5, €10, €25 or €100.