Thunderstruck - what can I say about Thunderstruck except to say it's my favourite online slot and the grandfather of all free spin bonus slots. The great thing about the Thunderstruck slot - and kudos to Microgaming ("MG") for getting this right - is that it strikes a perfect balance of entertainment and big wins. That's not to say it doesn't have it's lean streaks mind, but when you get 3 or more of the "Scatter Ram" symbols in view, the fun really begins...well, you hope it does anyway! Free spins can retrigger and you get 15 with all wins trebled when the Rams hit, just like in IGT's Cleopatra slot in fact (the game that trail-blazed the "15 free spins at 3x" feature even though it wasn't the first to do it).

The online casinos above all carry the Thunderstruck slot on both the download and the Flash casino versions. You can also play it for free by signing up a guest account at one of the online casinos listed above. This also gives you access to "Spring Break", "Summertime" and "Ladies Nite" which are exactly the same as the Thunderstruck slot in terms of features, but with different skins. I occasionally wander round to Spring Break when Thunderstruck is in a bad mood, but I always end up back playing Thunderstruck!

On the 4th May 2010, Microgaming launched the eagerly anticipated follow-up, Thunderstruck II - a very different slot but one that if you like the original, is well worth a try. Both of the Thunderstruck slots are good for different reasons in fact and both are available in free-play here at along with some other popular MG slot games such as Tombraider and the branded Hitman slot which is actually really good too.

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