About Thunderstruck II
Thunderstruck II is one of the most enduring slots ever made — a 2010 Microgaming release built on a 5×3 grid with 243 ways to win, a 96.65% RTP and medium volatility, with a max win of about 8,100× your stake.
How it works
The headline feature is the Great Hall of Spins: four escalating free-spins modes (Valkyrie, Loki, Odin and Thor) that unlock the more often you trigger the bonus, each with its own multipliers and wild behaviour. A random Wild Storm can also turn up to all five reels wild in the base game.
Our take
It has aged well: the 96.65% RTP is comfortably above the ~96% average, the medium variance keeps sessions playable, and the four-tier free-spins ladder still feels fresh. A genuine classic that holds up against modern releases.
Sources
The RTP reality
Thunderstruck II's published RTP is 96.65%. RTP is configurable, so the same slot can pay back differently from one casino to the next. The only figure that reflects your game is the one in the slot's own info ("i") panel at the casino you're using.
FAQ
What is the RTP of Thunderstruck II?
Thunderstruck II's published RTP is 96.65%. The figure can vary by casino, so check the in-game info panel for the version your site runs.
What is the max win on Thunderstruck II?
The maximum win is 8,100× your stake — a rare ceiling, not an expectation.
Can I play Thunderstruck II in Ontario?
Thunderstruck II is a Microgaming title available at casinos registered with the AGCO and iGaming Ontario. Only play it on a registered site — see the list below.
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Specs sourced from the provider via slot.report; figures are theoretical/default — your casino's in-game info panel is authoritative. 19+ · play within your limits · ConnexOntario 1-866-531-2600.