Thunderstruck II Slot Review 2026
Thunderstruck II is Microgaming’s Norse mythology masterpiece that has stood the test of time since 2010. The 243 ways-t...
RTP
96.65%
Volatility
Medium
Max Win
4,140x
Reels
5
Paylines
243
About Thunderstruck II
Thunderstruck II is Microgaming’s Norse mythology masterpiece that has stood the test of time since 2010. The 243 ways-to-win system, four distinct bonus features tied to Norse gods (Thor, Odin, Loki, and Valkyrie), and the progressive Great Hall of Spins make this a deep and rewarding experience. Each god offers a unique bonus round with different mechanics, keeping the gameplay fresh and engaging even after hundreds of sessions.
Key Features
- 243 ways to win with 5x3 reel configuration
- Great Hall of Spins with 4 distinct bonus features
- Thor feature — rolling reels with win multiplier
- Odin feature — up to 20 free spins with 2x wild multiplier
- Loki feature — wild substitution during free spins
- Valkyrie feature — 10+ free spins with 5x multiplier
✓ Pros
- Four distinct bonus features offer incredible variety
- High RTP of 96.65% is above average
- Medium volatility suits a wide range of players
- Norse mythology theme with excellent game design
- Great Hall of Spins progression system rewards loyalty
✗ Cons
- Max win of 4,140x is modest by modern standards
- Graphics feel dated compared to 2025 releases
- Requires patience to unlock all four bonus features
- Limited betting range (€0.30–€30)
Frequently Asked Questions
What is the RTP of Thunderstruck II?
Thunderstruck II has an RTP of 96.65%, which remains competitive even by today’s standards.
How does the Great Hall of Spins work?
Each time you trigger free spins, you unlock progress in the Great Hall of Spins. The first trigger gives you the Valkyrie bonus (10 spins, 5x multiplier). As you trigger more bonuses, you unlock Odin (up to 20 spins, 2x wild), Loki (wild substitution), and finally Thor (rolling reels with multiplier increase).
What is the max win on Thunderstruck II?
The maximum win is 4,140x your stake, achievable during the Thor bonus round where rolling reels and escalating multipliers can chain for extended periods.
What are the 243 ways to win?
Instead of traditional paylines, Thunderstruck II pays for matching symbols on adjacent reels from left to right. Any position on each reel counts, giving you 243 possible winning combinations per spin.
Can I play Thunderstruck II for free?
Yes, Thunderstruck II is available in demo mode at most Microgaming casinos. Free play is highly recommended to experience all four bonus features.
Is Thunderstruck II available on mobile?
Yes, Thunderstruck II has been converted to HTML5 and is fully playable on iOS and Android devices through mobile browsers.
Play Free Slots Online
Try this slot for free in demo mode before playing for real money. Browse our full collection of free demo slots and practice without any financial risk.
Ready to Spin Thunderstruck II?
Find the best casinos with Thunderstruck II and claim exclusive welcome bonuses.
Browse Casinos →