Quick verdict: Thunderstruck II is Microgaming’s 2010 Norse classic and one of the most popular slots ever made. It uses 243 ways to win, a random Wildstorm feature and the Great Hall of Spins, which unlocks four god-themed free spins modes as you play. The top RTP is 96.65%, volatility is medium and the max win is about 8,000x.
Where we play Thunderstruck II
1win is our top-rated casino (9.9/10), with thousands of slots and a crypto withdrawal that took 15 minutes in our test.
Play at 1win18+. T&Cs apply. Not available in every country. Game libraries vary, so search the lobby for Thunderstruck II.
Thunderstruck II at a glance
| Provider | Microgaming (Games Global) |
|---|---|
| Released | 2010 |
| Layout | 5 reels, 3 rows, 243 ways |
| RTP | 96.65% (a 94.13% version exists) |
| Volatility | Medium |
| Max win | About 8,000x your bet |
| Main features | Wildstorm, Great Hall of Spins |
How Thunderstruck II works
Wins pay for matching symbols on adjacent reels from left to right, in any row, giving 243 ways. The wild substitutes for regular symbols. On any spin, the random Wildstorm feature can strike and turn up to five reels completely wild.
The Great Hall of Spins
Three or more hammer scatters take you to the Great Hall of Spins. The first time, only the Valkyrie mode is open. As you trigger the feature more often, Loki, Odin and finally Thor unlock, each with different spins and modifiers such as multipliers and wild features.
Thunderstruck II RTP: check for the 96.65% version
The top RTP of 96.65% is a little above average, but a 94.13% version also exists, so check the info screen. Medium volatility gives a reasonable balance between regular wins and bigger hits.
Tips for playing Thunderstruck II
- Check you are on the 96.65% version.
- The Great Hall unlocks over time, so it suits players who return to the game.
- Try the demo to see how often Wildstorm strikes.
- Set a budget; free spins modes vary a lot in value.
Slots like Thunderstruck II
- Best Viking slots: our full list of Norse games.
- Viking Runecraft: a high-volatility Norse cluster slot.
- Vikings Go Berzerk: Yggdrasil’s rage-meter Vikings.
- 1 cent slots: includes the original Thunderstruck.
- Tarzan: Microgaming’s jungle slot, where a bonus wheel picks free spins, Pick-a-Potamus or a jackpot.
- Basketball Star: another Microgaming slot with 243 ways to win, plus the random Wild Shot feature.
- Blazing Mammoth: a Games Global slot with a mammoth prize ladder up to 2,000x.
- Break da Bank Again Respin: a Microgaming remake with paid single-reel respins.
- 9 Masks of Fire: a Games Global slot where masks anywhere pay up to 2,000x.
- Avalon: Microgaming’s 2006 slot with 12 free spins at up to 7x and a card gamble.
- Agent Jane Blonde: a classic Microgaming spy slot with a 2x wild and tripled free spins.
Where to play Thunderstruck II
Our top-rated casino, 1win (9.9/10), paid our crypto withdrawal in 15 minutes. Search its lobby for “Thunderstruck” and pick Thunderstruck II, Microgaming’s 2010 original. New players can use promo code Ultragambler (see our 1win promo code page). For another Norse slot, try Play’n GO’s Viking Runecraft. A 94.13% version exists, so check the info screen shows 96.65%.
Thunderstruck II FAQs
What is the RTP of Thunderstruck II?
96.65% in the top version; a 94.13% version also exists.
What is the max win on Thunderstruck II?
About 8,000x your bet.
What is the Great Hall of Spins?
The free spins feature, with four modes (Valkyrie, Loki, Odin and Thor) that unlock the more often you trigger it.
What is Wildstorm?
A random feature that can turn up to five reels wild on any spin.
Important: check your local laws before you play
Online gambling laws differ from country to country, and in some places it is restricted or not permitted at all. Check that online gambling is legal where you live and that the casino accepts players from your country. You must be 18 or older (or the legal gambling age in your country, if higher). Only gamble with money you can afford to lose.
