International
18+
Thunderstruck II
Games Global Medium volatility

Thunderstruck II

By Iko Monto · Published · Last updated

243 ways to win and four Great Hall of Spins bonus levels made Thunderstruck II a 2010 landmark — 96.65% RTP with wins up to 8,000x the stake.

RTP 96.7%
Max win 8,000×
Casinos 0
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Thunderstruck II facts

Provider Games Global
RTP 96.65%
Volatility Medium
Max win 8,000× stake
Bet range €0.30 – €15
Paylines / ways 243 ways to win
Layout 5×3 reels
Released 2010
Free spinsMultipliersCascading reels

The game that popularised 243 ways

Launched by Microgaming in May 2010 and now part of the Games Global portfolio, Thunderstruck II swapped its predecessor's paylines for 243 ways to win on a 5x3 grid — a format it helped make an industry standard. The RTP is 96.65%, stakes run 0.30–15.00 per spin, and the top prize reaches about 8,000x the stake (2.4 million coins).

Great Hall of Spins

The persistent Great Hall of Spins unlocks four Norse-god rounds as you retrigger it across sessions: Valkyrie (10 free spins, 5x multiplier), Loki (15 free spins with Wild Magic), Odin (20 free spins with Wild Raven multipliers up to 6x) and Thor (25 free spins with Rolling Reels cascades and multipliers up to 5x).

In the base game, the random Wildstorm feature can turn up to all five reels wild — the route to the game's maximum win.

Understanding this game's RTP

RTP (return to player) of 96.7% means the game returns that percentage of all wagered money to players over a large number of spins. The remaining 3.3% is the house edge. Individual sessions can vary widely — RTP is a long-run statistical average, not a per-session guarantee.

Medium volatility offers a balance between frequency and size of wins.

Thunderstruck II FAQ

What is the max win in Thunderstruck II?

Up to roughly 8,000x the stake (a 2.4-million-coin ceiling), chiefly via the Wildstorm feature turning all five reels wild.

How do the Great Hall of Spins levels unlock?

Progressively across triggers: Valkyrie is available at once, Loki from the 5th trigger, Odin from the 10th and Thor from the 15th — your progress persists between sessions.

What are the RTP and betting range?

The published RTP is 96.65%, with bets from 0.30 to 15.00 per spin across 243 ways to win.

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