Tropical Thunder Slot

3.2/5
Based on our expert’s review. Reviewed by
Iron Dog Studio Slot Reviews
Review by
Jovana Bicanin
Updated: 12/02/2025
Review by
Jovana Bicanin
Updated: 12/02/2025

A sun-kissed island paradise somewhere in the Pacific Ocean is the setting for Tropical Thunder, a 3-reel, 5-payline slot from Iron Dog Studio. Look out for special coins with prizes attached. These are awarded when the Collect symbol hits. There’s also a Hold and Win re-spin bonus where a quartet of jackpot prizes are also up for grabs. With a 95% RTP and a 5,000x max win, find out more about this volatile slot in my detailed Tropical Thunder review.

Max Win
5,000 x bet
Play
T&Cs Apply

New UK certified players | Valid mobile number required, No minimum deposit | 25 Book of Dead spins allocated | 40 times wagering on winnings | Ends 31.03.25 | £5 max bonus stake T&Cs apply #ad

Provider
Iron Dog Studio
Type of Slot
Video Slot
Theme
Fruit
Reels
3
Paylines
5
Stakes Range
10p–£50
Bonus Features
2
Free Spins/Multiplier
3
Multiplier
No
Max Win
5,000x
RTP
95%
Volatility
High

Tropical Thunder Demo

18plus uk-gambling-commission online-slot-co-uk-logo agechecked-verification-provider
T&Cs Apply New UK certified players | Valid mobile number required, No minimum deposit | 25 Book of Dead spins allocated | 40 times wagering on winnings | Ends 31.03.25 | £5 max bonus stake T&Cs apply #ad
18plus uk-gambling-commission online-slot-co-uk-logo agechecked-verification-provider
T&Cs Apply New UK certified players | Valid mobile number required, No minimum deposit | 25 Book of Dead spins allocated | 40 times wagering on winnings | Ends 31.03.25 | £5 max bonus stake T&Cs apply #ad

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Tropical Thunder Slot RTP, Details & Wager Limits

The Tropical Thunder online slot game is played on a 3×3 game grid, which is certainly a little unusual compared to most new online slots. Create a winning combination by landing 3 matching symbols in one of the game’s five paylines.

Bet sizes range from 10p to £50 per spin. Adjust by clicking on the coins icon and then using the + and – buttons. The autoplay function lets you set between 5 and 999 spins. There’s also a quickspin mode. You can activate it by heading to the settings tab. The autoplay and quickspin options aren’t available if you play at Tropical Thunder casinos in the UK.

In most cases, the Tropical Thunder RTP is 95%. That’s a little on the skinny side compared to the best RTP slots. Iron Dog Studio has also produced versions with 93% and 91% return-to-player rates. It’s worth searching around the best online slot sites to find the version that offers the top returns.

The Tropical Thunder max win is 5,000x. It’s a distance behind the biggest progressive jackpot slots but isn’t bad for a 3-reel slot. The setting here might be paradise, but there could be thunderstorms on the horizon as far as variance goes. This is a high-volatility slot. In the Tropical Thunder demo slot, I found the best winning chances arrived via the Hold & Win feature. It’s one of many free to play slots you can take for a spin here at online-slot.co.uk.

Tropical Thunder Theme—Head to a Beautiful Pacific Paradise

tropical-thunder-slot-base-game

Iron Dog Studio created a rather lovely-looking slot here. A beautiful beach at sunset forms the backdrop to the action. There’s a purple glow to that backdrop, punctuated by lightning strikes. It creates quite the effect.

On the dark purple reels, you’ll see six different tropical fruit symbols as well as bells and bars. They all have a glossy, high-def sheen, and they stand out sharply against the dark backdrop. The lucky 7s symbol is the Wild, and there are coins and collect symbols.

The guitar-heavy soundtrack is okay but doesn’t really match the tropical setting. It had me reaching for the mute button after a while. That aside, the design here impresses.

Here’s what the paytable looks like:

Symbol Payouts/Info
tropical-thunder-slot-dragon-fruit-symbolDragon Fruit 3 = 1x
tropical-thunder-slot-kiwi-fruit-symbolKiwi Fruit 3 = 4x
tropical-thunder-slot-green-fruit-symbolGreen Fruit 3 = 4x
tropical-thunder-slot-pineapple-symbolPineapple 3 = 4x
tropical-thunder-slot-mangosteen-symbolMangosteen 3 = 16x
tropical-thunder-slot-papaya-symbolPapaya 3 = 16x
tropical-thunder-slot-bells-symbolBells 3 = 20x
tropical-thunder-slot-bars-symbolBars 3 = 30x
tropical-thunder-slot-wild-symbolLucky 7s | Wild 3 = 50x

Tropical Thunder Mobile Slot

tropical-thunder-mobile-slot

I tried out the Tropical Thunder mobile slot on an Android-powered smartphone and on an iPad. The gaming experience was just fine on either device. The 3×3 game engine is ideal for small screen play, and the visuals are lovely and sharp. Both landscape and portrait modes worked great. The simple gameplay is also a fit if you’re playing at a Tropical Thunder mobile casino.

Tropical Thunder Bonus Features

Online slots with 3 reels are never likely to be overloaded with extras. There are a couple of Tropical Thunder bonuses to note, though. There’s a Cash Collect feature as well as a Hold and Re-Spin round where you could land cash bonuses and fixed jackpots worth up to 1,000x.

Cash Collect Feature

The gold coin with the lightning bolt motif is the Coin Collector symbol. Whenever this lands, it collects the values attached to the gold coin symbols that land elsewhere on the reels on that spin.

Hold & Win Re-Spins

tropical-thunder-slot-respin

Trigger this round by landing the Coin Collector on reel 2 and coin symbols on reels 1 and 3 on the same spin. Land 2, and you’ll activate a Coin Shower, which will allow you to land the all-important third.

Once triggered, you’ll receive 3 re-spins. These play out on a machine that’s made up solely of blanks and coins. The Coin Collector symbol locks in place for all 3 re-spins, collecting the values of any coins that appear.

Also joining the action here are 4 jackpot coins which award the following prizes:

  • Mega Coin = 1,000x
  • Major Coin = 150x
  • Minor Coin = 50x
  • Mini Coin = 25x

Each time a coin lands, the number of re-spins resets to 3. It’s possible to land more than one Coin Collector. When this happens, each Coin Collector collects the value of the coins on that spin. In effect, you can win the same prize multiple times

Tropical Thunder Verdict: Straightforward and Colourful, This Pacific Paradise Offers Some Simple Slot Pleasures

3.2/5
Based on our expert’s review. Reviewed by
Tropical Thunder Slot

The design here is excellent. The range of features is small, though, which means there’s a repetitive feel to the gameplay.

What we liked
  • Stylish visuals
  • Very easy to play
  • Re-spins mode offers decent potential
What we didn't
  • RTP of 95% is below average
  • Gameplay is rather limited

A slot with a 3-reel, 5-payline game engine doesn’t leave a huge amount of room for features. Tropical Thunder certainly isn’t overloaded with extras. There’s just about enough going on here to keep things interesting, though.

The Coin Collect can rev up the base game, but the Hold & Win Re-spin bonus offers the best opportunities. Land a jackpot coin, and there is some decent action to take. Another plus here is the design. Tropical Thunder is a very stylish slot that plays well whether you are using a computer with a big screen or a tiny smartphone.

Numbers-wise, it’s a bit of a mixed bag. The 5,000x max win is pretty good for a 3-reel slot. The 95% RTP is below average, though. The high volatility won’t be for everyone, either.

If you like slots that deliver plenty of variety and a range of features, Tropical Thunder may well disappoint. The features are fine, but the limited nature of the gameplay means that Tropical Thunder can get repetitive rather quickly.

If you like the tropical setting, why not take a look at Tiki Tumble? It’s a 5-reel, 20-payline slot from Push Gaming that has a bumper max win of more than 18,000x.