ThunderStruck is a 5 reel 9 pay line slot available to play at all online casinos which operate on  Microgaming Casino Software. Since the ThunderStruck Online Slot was introduced, it has proven to be one of the most popular online slots available to play from the comfort of your home.

ThunderStruck has long lasting appeal amongst slot enthusiasts and this is in part due to the features it has available to the player. One of these being the Thor symbol which acts as ThunderStuck's wild card symbol. In addition there is the Ram symbol which triggers free spins if you manage to hit three or more rams in a single spin.

The Free spins feature of ThunderStruck also has another twist. As well as tripling the value of each win hit when playing through the free spins. Once they are complete you are then given the option to gamble your winnings accrued during the free spins. This is done by either choosing red or black from a pack of cards - thus doubling your win if you guess and choose correctly the colour to be drawn.

However you can also take a bigger risk, but with it comes a much higher reward by choosing what suit from a pack of cards will be drawn. This reduces your chances of being successful down to one in four. But likewise if you choose correctly, your win will quadruple in value.