Big Thunder Slots
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Big Thunder Slots Review

With over 450 online slots games, Big Thunder Slots is one of the best sites if slots are your preferred gaming style.

Part of the well-respected Jumpman Slots network, Big Thunder Slots uses this platform to ensure that all online slots offered are of the highest quality. For this reason alone, you know you’re going to get great casino gameplay with Big Thunder Slots.

With some fantastic welcome bonus offers and in-game bonus offers, the sheer variety of games offered at Big Thunder Slots will leave even the most experienced online slots player excited to log on and get spinning.

The Big Thunder Slots experience is designed to emulate a volcano or mountain, with the thunderclap theme running through various elements of the site. As the name would suggest, Big Thunder Slots is primarily focused on online slot games, however you will also find online casino games, instant games and online bingo to name just a few. Our expert online casino review team have put Big Thunder Slots through its paces, to discover just how good this Jumpman Slots online casino site is.


Whether you’re interested in the bonus offers or the welcome bonuses offered by Big Thunder Slots, we find out exactly what’s involved when you play.

As a well-respected and well-known online casino brand, Big Thunder Slots offers some of the best gameplay we have seen on the market. Usually, we experience some clunky gameplay or glitches, even with the most well-known operators, but this was not the case here.

The developers behind Big Thunder Slots have worked hard to ensure that the gaming experience is slick and fast loading, to avoid the frustrations we have experienced with slower running online casino sites.

At the time of writing, Big Thunder Slots offers over 450 online casino games, ranging from online slots, online casino games, bingo and many more!

The welcome bonus offered at Big Thunder Slots is quite unique, as it is not automatically added to your online casino account. First, you must spin their Mega Reel to find out what your welcome bonus offer is. More information on this later on in the review.

Whilst the super-fast gameplay and game choice are plus points for Big Thunder Slots, the welcome bonus offer could be confusing for some and this is why we’ve awarded Big Thunder Slots just 3 stars overall.

Big Thunder Slots Welcome Bonus July 2021

Big Thunder Slots offers a unique way to play for bonus offers. In order to see what bonuses are available, you must spin the Mega Reel, which selects a random bonus amount to be added to your account. The best bonus offer is 500 free spins, but none of our reviewers were lucky enough to land on this when spinning the Mega Reel.


Interestingly, spinning the Mega Reel does not always guarantee a bonus offer which is why we have only awarded Big Thunder Slots 2 stars in the bonuses section.

Bonus offers are also sent to players via email, but are only valid for 24 hours after the code is sent, making it vital to redeem the code quickly.

Big Thunder Slots Loyalty Rewards

There are 5 loyalty levels in Big Thunder Slots’ loyalty scheme. Earn Kudos by playing your favourite games on the site and progress through the VIP levels for better benefits, including 10% daily cashback, birthday bonuses and more.


Slots & Games

If you’re looking for a complete gaming experience covering online slots, live casino games and online bingo, then Big Thunder Slots will have everything you’re looking for.

The game variety available at Big Thunder Slots is incredible. With over 450 games to choose from and the latest Jumpman Casino additions updated regularly, you definitely won’t be hunting around for new games to play.

Offering the complete gaming experience, the 450 games offered through Big Thunder Slots will entertain any player, no matter what their gaming style might be.


Ranging from online slot games to online bingo, you’re sure to find a game you enjoy at Big Thunder Slots.

Many of the games offered at Big Thunder Slots have been developed by the top developers such as Microgaming, NextGen and NetEnt, to name just a few of the biggest names!

Some of the titles on offer include: Jewel Journey, Planet of the Apes and Enchanted Prince. Games are easy to find and play, so log on to see the full selection of games on offer.


The information offered on the Big Thunder Slots website is quite minimal when it comes to the banking options offered. At the time of writing, this is the information offered by Big Thunder Slots.

The minimum withdrawal amount is £10 but each withdrawal under £30 carries a £2.50 administration fee, so this is worth keeping in mind when planning your withdrawals. The standard withdrawal processing time can be between 7-10 days, again worth keeping in mind when planning withdrawals.

The wagering requirements are 65x the winnings from the Mega Reel.

If you win from a bonus spin, then this will be classed as a ‘bonus fund’ at Big Thunder Slots. Winnings stored in the ‘bonus fund’ will be saved and stored until the wagering requirements are met, then a cash withdrawal can take place.

You can make x2 withdrawals in any 24 hour period, but you are not allowed to make a withdrawal within 48 hours of the initial deposit being made by new players.

Please note, that wagering requirements can differ between games, so it’s worth checking out the terms and conditions for each individual game.

Customer Service

Should you need some support when playing any of the online casino games at Big Thunder Slots, the customer service team are there to help you.

Telephone appears to be the best way to get in touch with their customer service team and they are open between 9am-6:30pm, Monday to Friday.

Big Thunder Slots is operated by Jumpman Gaming, which is fully licensed by the UK Gambling Commission (UKGC), meaning that you can play slots and casino games safe in the knowledge that your deposits are protected.

User Interface

A bright and fun design runs through the entire site and the navigation was simple and easy to use.

Users can navigate easily through each section of Big Thunder Slots, to discover games, promotions and give the Mega Reel a spin for exclusive bonus offers.

We found Big Thunder Slots to be easy to use on both mobile and desktop devices, making it easy for us to find the online casino game we were looking for.

Pros and Cons


  • 450+ slots
  • Mega Reel bonus – win up to 500 free spins
  • Loyalty scheme with 5 levels


  • £2.50 admin fee for withdrawals under £30
  • No live chat or 24/7 customer support

Our Verdict

To sum up everything we’ve learned from our Big Thunder Slots research, this is an excellent casino for slots and bonus lovers. There is room for improvement, particularly in the area of customer support (one of our recommendations for superb customer service is Dream Vegas), however this is a trusted and reliable brand with enough games to keep most players totally entertained.

Big Thunder Slots Sister Sites

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Further Information

Licensee: Jumpman Gaming Ltd

Gambling Commission Reference Number: 39175

Customer Support Email:

Telephone Support: N/A

Social Media: Facebook