Thunderstruck II Mega Moolah is an online slot developed by Microgaming. This Viking-themed game has 243 betways and a x8,000 top win. Additional features include free ...spins, cascading wins, expanding symbols, and win multipliers. Thunderstruck II Mega Moolah is a medium-volatility slot with a 92.01% RTP.

- 243 betways
- x8,000 top win
- Free spins bonus round
- Up to x200 win multipliers
- 4 jackpots

- Medium volatility
- Below-average 92.01% RTP
Contents
Introduction
The Thunderstruck II Mega Moolah online slot from Microgaming is a Viking-themed slot featuring a cast of legendary characters from Odin to Valkyrie. So, without further ado, let’s explore exactly what this game has to offer.
Theme, Graphics & Soundtrack
We can’t begin a slot review without talking about the visuals, but the epic movie-style soundtrack is actually one of the first things you’ll notice, and this is complemented by a selection of subtle sound effects that play out when wins land and when the spin button is selected.
The game’s overall design is very straightforward and there are some clever animations that play out, such as when gold coins move from the reels into the progressive jackpot coin collector and when the lightning effect highlights the gleaming reel frame.
Thunderstruck II Mega Moolah RTP and Variance
Thunderstruck II Mega Moolah from Microgaming is a medium-volatility slot with a 92.01% RTP (return to player).
How to Play the Thunderstruck II Mega Moolah slot
Before we move on to our official slot review, let’s run through a quick step-by-step guide to getting started with this Microgaming free slot.
- Review the paytable, win lines and bonus features by clicking on the three-line burger icon in the top right corner of the screen.
- On the main screen, click on the stacked coins icon to set your stake.
- Set an upper spend limit.
- Select the main spin button to activate standard spin mode. Alternatively, select the three arrows spin symbol to play in autoplay mode.
- This game also has a turbo mode, which can be activated by hitting the lightning bolt symbol.
- Use the Slots Temple self-exclusion and timeout tools to enhance your responsible gameplay.
- Stop playing when the fun stops.
Bet Sizes & Paytable Wins
When playing this Microgaming online slot, players can place a 0.30 minimum stake and a 24.00 maximum stake.
Thor’s hammer scatter is the highest-paying symbol on the paytable, with 5 of a kind unlocking a 4,800-coin win when the maximum stake is in play. The wild is the second highest-paying symbol, with 5 identical symbols unlocking a 800-coin win.



Thunderstruck II Mega Moolah Bonus Features
Wild
The wild symbol can replace all other symbols on the paytable, apart from the scatters. Additionally, when a wild replaces a symbol to make a winning combination, that win will be awarded a x2 multiplier.
The Great Hall of Spins
Landing 3 bonus Thor hammer scatter symbols in any position on the reels will give you entry into the Great Hall of Spins. Here, there are 4 different free spins bonus rounds that can be unlocked. Gaining several entries into the Hall will unlock these bonus rounds sequentially, which include:
Valkyrie: 10 free spins + x5 win multiplier
Loki: 15 free spins + wild magic feature
Odin: 20 free spins + wild raven feature
Thor: 25 free spins + rolling reels feature
Wild Magic
When a wild magic symbol lands on reel 3, up to 15 symbols on the reels will also be transformed into wild magic symbols.
Wild Raven
Odin’s ravens can transform up to 2 symbols into a wild. All transformed wilds will award a x2 or x3 win multiplier to the prize.
Rolling Reels
All winning symbols will be removed from the reels and replaced by new symbols, so multiple winning combinations could land from a single spin. Each subsequent cascading win will also receive a win multiplier, up to x5.
Progressive Jackpots
There are 4 different jackpots that could be won when playing Thunderstruck II Mega Moolah.
Mini Progressive: 10.00
Minor Progressive: 100.00
Major Progressive: 10,000
Mega Progressive: 2,000,000
This feature can trigger randomly on any spin, but higher stakes have a greater chance of unlocking a jackpot prize. Now, let’s get into the last part of our Thunderstruck II Mega Moolah slot review.
Thunderstruck II Mega Moolah Review
There is a lot to like about this Microgaming offering, particularly the cascading wins and multi-level jackpot bonus. The low RTP is disappointing and the maximum bet is also on the low side, but these are minor complaints.
If you are looking to explore a selection of other free online slots, use the innovative Slots Temple search feature to filter games by theme, developer, and feature. If you’re keen to play another similarly immersive online slot, we think you may enjoy the Age of the Gods slot from Playtech. Age of the Gods is a medium variance game with 20 paylines and a 95.02% theoretical RTP. The progressive wins is the most notable bonus feature, and the game offers a x10,000 top win.
Disclaimer: Thunderstruck II Mega Moolah trademark / license is owned by Games Global. This site is not endorsed by Games Global.
Slot Name: | Thunderstruck II Mega Moolah |
---|---|
Software: | Games Global |
RTP: | 96.18% |
Volatility: | High volatility |
Paylines: | 243 |
Reels: | 5 |
Min Bet (all lines covered): | £0.30 (GBP) |
Max Bet: | £24 (GBP) |
Top Win: | 10000 |
Features: | Wild Symbol, Scatter Symbol, Free Spins, High volatility, 5 Reels |
Themes: | Magic |
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Yes. Games Global have a UKGC license and are allowed to offer their games at UK licensed casinos. |
FAQs
What is the RTP of Thunderstruck II Mega Moolah, and how volatile is it?
This online slot from Microgaming is a medium-volatility game with an expected RTP of 92.01%. This RTP is significantly below the overall 96% average across the free slot landscape. This combination is likely to appeal more to experienced slot players; new players could be cautious at first when getting accustomed to the game’s mechanics.
What is the biggest win available when playing Thunderstruck II Mega Moolah?
Although you might expect an online slot with so many opportunities to unlock win multipliers to have a higher maximum win, the luckiest players could unlock a top prize of x8,000. This is still a decent win, but it might be a bit below the expectations of some players, particularly as this is a higher-variance game with a lower-than-average return.
Does Thunderstruck II Mega Moolah have any notable bonus features?
This free slot has a solid selection of bonus features, including 4 different free spins bonuses offering up to 25 free games, cascading wins, and win multipliers. The wild can replace all other symbols on the reels and award win multipliers when it forms part of a winning combination. Additionally, lucky players could also unlock 1 of 4 progressive jackpots, the largest of which starts at 2,000,000.
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