Play Thunderstruck II Slot by Games Global for Free

Thunderstruck II by Games Global is the Norse mythology slot that introduced the Great Hall of Spins to the industry. The bonus reveals four progressive modes across repeated triggers: Valkyrie gives a 5x multiplier, Loki offers Wildcast, Odin adds Ravens, and Thor unlocks Rolling Reels with rising multipliers. The Wildstorm feature can randomly turn up to five reels wild during the base game. 243 ways, 5x3, 8,000x max prize. Free at Spree.