| Provider | Ainsworth |
| Type | Video Slot |
| RTP | 94.38% |
| Volatility | Medium |
| Reels | 5 |
| Rows | 5 |
| Paylines | 30 |
| Max Win | 1000000 |
| Features | Scatter symbols, Bonus Reel, King Strike Bonus, Wild |
| Theme | Jungle, Gorilla |
Theme and Gameplay
Big Thunder takes you deep into a mysterious jungle where nature’s raw power is on full display. From roaring waterfalls to tribal drums and ancient masks, the visuals pull you right into an adventurous setting. The sound effects enhance the experience, giving you that immersive “lost in the wild” feel.
This slot game follows a traditional five-reel format, with paylines running from left to right. But don’t be fooled by its classic layout—Big Thunder is packed with twists, especially when you trigger its bonus features.
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Symbols and Wilds
The game’s main wild symbol is the GorillaRegister, which substitutes for all other symbols except scatters and the King StrikeLogin. However, the Gorilla only appears on reels 3, 4, and 5 during the base game. While this might seem like a limitation, when you hit a winning combination with the Gorilla, it can really shake things up.
The scatter symbol is HomeBig Thunder , and as you’d expect, it plays a crucial role in unlocking free spins and bonus rounds.Games
There’s also the PromotionsKing Strike symbol , which only shows up on reel VIP6 . It’s the key to triggering the King Strike Bonus—more on that later.
How to Win—Understanding the Paylines
Winning in Big Thunder is all about matching symbols from <
< img alt="Language Picker" src="https://www.blackspins.com/wp-content/uploads/2020/11/lang.png" width="50px" height="29px">The excitement ramps up when you land three or more Big Thunder scatter symbols because that’s when the Bonus Reel Feature kicks in. You’ll get <
< img src="https://www.blackspins.com/wp-content/uploads/2021/02/BS_row_flag.png" alt="NZ" width="50px" height="29px">< img width="264" height="264" src="https://www.blackspins.com/wp-content/uploads/2020/12/Disco-Double.png" class="attachment-post-thumbnail size-post-thumbnail wp-post-image" alt="Disco Double" decoding="async" fetchpriority="high" srcset="https://www.blackspins.com/wp-content/uploads/2020/12/Disco-Double.png 264w, https://www.blackspins.com/wp-content/uploads/2020/12/Disco-Double-150x150.png 150w" sizes="(max-width: 264px) 100vw, 264px" />
One of the unique aspects of Big Thunder is its King Strike Bonus , which gives players a shot at one of four extra bonuses: Play for RealMini, Minor, Maxi, and Major . But how do you unlock them?Play for Free
It all depends on whether you land a five-of-a-kind win with or without a Gorilla wild , while also having the