Free Big Thunder Slot Machine

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Big Thunder Online Slot Review

Big Thunder online slot by Ainsworth features a jungle theme where you have to find hidden treasures from the jungle.  Big Thunder comes with numerous features and good payouts that enhance the fun. Read More

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Betting Range, Wild & Scatter

Big Thunder is a five reel online slot that offers 30 different paylines. The minimum coins size allocated for the slot is 0.01, and the maximum range goes up to 100.

Wild symbol of Big Thunder free online slot game Gorilla is the wild that substitutes other icons excluding the Big Thunder scatter and the King Strike.  The Gorilla icon only lands on reel 3, 4 and five during the paid games. Scatter landing on the reel can help you win up to 150,000 with the highest bet.  You can get King Shield only on reel six at the time of paid games. All wins pay left to right excluding the bonus reel feature and scatter wins. Scatter wins pay any.

Moreover, you can find different icons including a mask, a snake or a shield.  Acquiring these symbols help you increase the wins during your gameplay.  The game also offers a feature paytable that offers increased rewards to the players.  If your luck favours, you can win up to 600,000 during the game. Other icons like the waterfalls, shield, snake and the Big Thunder scatter also offer bigger rewards.

Bonus Reel Feature

This feature offers 15 bonus games when you land 3 or more scattered icons.  You can also get a bonus reel along with x3 and x5 multiplier and the Big Thunder symbol.  At the time of playing this feature, the wild gorilla symbol replaces remaining icons excluding x3 and x5. In case, you land x3; your wins are tripled.  In case you land x5 your wins are multiplied by 5. All wins pay any during the bonus reel feature.  The landing of 3 or more scatter Big Thunder icon features an additional 5 Bonus Reel feature to the players.  The feature paytable is applicable during this feature.

Symbol scatter of online free game Big Thunder
Scatter Symbol

King Strike Bonus

If you acquire the 5 of a kind snake, shield, drum or mask with no wild icons, you get a major bonus and the King Strike lands on reel 6.  If you acquire the 5 of a kind king, queen, nine, ten, jack or an ace with no wild icons, you get the maxi bonus, and the King Strike lands on reel 6. If you acquire five of a kind snake, shield, drum, mask or waterfall along with a substitute, you get a mini bonus, and the King Strike lands on reel 6.


Big Thunder slot features exciting gameplay and amazing payouts.  Enjoy exciting bonus games, but remember you cannot trigger them while playing the bonus reel feature. Get ready for lucrative payouts.

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