Thunderstruck II is one of the most popular online slot machines in the world and it has been a firm favorite with online gamblers ever since it first arrived in online casinos back in May 2010. This is a Microgaming slot which can now be found at many of our top-rated UK online casinos.

This game has 5 reels and 243 ways to win per spin and it can be launched across Microgaming’s Flash, download, mobile and Quickfire platforms. The massive top prize up for grabs on this game is worth an incredible 2.4 million coins and you can play to win some big prizes during the Great Hall of Spins Bonus.

The Wild Symbol is the Thunderstruck II Logo and the Scatter Symbol (also referred to as the Bonus Symbol) is Thor’s Hammer. The only symbol that the Wild Symbol will not substitute is the Scatter Symbol and both the Wild Symbols and the Scatter Symbols can land in any position across any of the reels.

The Wildstorm Feature is an exciting in-play bonus feature which will only ever randomly trigger. When this triggers the lightning will strike the reels, turning up to five of the reels into completely Wild Reels (aka Stacked Wilds). Multiple Wild Reels can help generate some really big line wins.

The Great Hall of Spins Bonus Feature will instantly trigger when three or more of the Scatter Symbols land in any position across the reels and sequential entries into this bonus will eventually trigger even better Free Spins Bonus Rounds. On the first ever trigger you will be awarded 10 Free Spins and a 5 Prize Multiplier. This particular bonus is known as Valkyrie.

When the Great Hall of Spins Bonus triggers for the fifth time, the Loki Bonus will award 15 Free Spins with a Wild Magic Feature (look out for the Wild Magic Symbol on the centre reel). On the tenth trigger you will be awarded the Odin Bonus with 20 Free Spins and the Wild Raven Feature (raven symbols can randomly turn symbols into 2X or 3X Multipliers, or 6X when both ravens land on the reels).

The most exciting bonus in the Great Hall of Spins Bonus is called Thor and this will be awarded on the 15th entry into the Great Hall of Spins. You will receive 25 Free Spins with Rolling Reels™ and also an Increasing Multiplier (2X, 3X, 4X and 5X.). If you want to play on this famous online slot right now, head over to Roxy Palace Casino, Betway Casino or 32Red Casino. You can also enjoy playing on this game at various other top UK online casinos such as Mr Green Casino and bgo Vegas.