£200 Free to Play Thunderstruck IIPlay the Microgaming-powered Thunderstruck II slot at Unibet Casino – read about this cult classic and how to get up to £200 free on your first deposit.

Thunderstruck II is a 5 reel 243 ways to win slot game based on Norse mythology (it features Nordic gods like Valkyrie, Loki, Odin and Thor). Since it’s launched in May 2010, it’s arguably the most popular slot game Microgaming has produced, ever.

The game has 1 bonus feature in the base game – this is the Wildstorm feature. It triggers at random and gives you 1 free spin. However, up to 5 reels will turn which can results in huge wins. However, this game is all about The Great Hall of Spins feature.

This is a 4 level free spins feature – you can gain access by obtaining 3 or more Bonus Hammer symbols anywhere on the reels. Each level is represented by the 4 gods the feature in the game. The details of the individual bonus features are as follows:

Valkyrie feature – you will play this feature on your first 4 times you trigger the feature. You will be rewarded with 10 free spins with a 5x multiplier with the possibility of triggering more free spins.

Loki feature – this is played from the 5th to 9th feature triggers and you will get 15 free spins with the Wild Magic feature. Wild Magic symbols on reel 3 transform into additional wilds.

Odin feature – you will play this feature from the 10th to 14th feature triggers and you will receive 20 free spins with the Wild Raven feature. Odin’s Ravens will turn symbols into 2x or 3x multipliers. If you get 2 of them, it will apply a 6x multiplier.

Thor feature – you can choose this feature once you trigger the Great Hall of Spins feature 15 or more times. You will receive 25 free spins with Rolling Reels. Consecutive wins increases the multiplier between 2x and 5x.

You won’t trigger the Great Hall of Spins feature very often so when it comes, it tends to pay well. Saying that, the game has a memory so you can pick up where you leave off (and trigger the feature enough times to play each of the 4 free spins modes). There is a bar at the bottom which shows your process. For more details and to play the game for free, check out the Thunderstruck II slot review.

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