I have probably gone well over 1,000,000 spins on Thunderstruck since I first played it at Ladbrokes casino back in 2004 and have had some wicked wins, including a £20,000 hit from an £11.25 spin quite recently. In fact I love it so much I even set up a dedicated Thunderstruck Slots website with a video, the game above and some of my winning screenshots. Feel free :-)
Thunderstruck is developed by Microgaming who now power all of the casinos above and provide over 400 slot games online! Although Thunderstruck has historically been the main slot in terms of popularity where Microgaming is concerned, recent additions to their catalogue such as the Lord Of The Rings slots and the brilliant follow-up game to Thunderstruck entitled (perhaps not quite so imaginatively!) Thunderstruck 2 are definitely going to threaten the original Thunderstruck slot's dominance in my opinion.
Microgaming's online slots will always face stiff comppetition from popular land-based games like Novomatic's Book Of Ra slot or the effervescent Cleopatra slot machine of course but those players who diversify will arguably find Microgaming's best slots easily compete with the main games from IGT and Novomatic, both in terms of entertainment and payouts.